Commit Graph

560 Commits

Author SHA1 Message Date
Aaron Gao 8721996065 add checkpoint support for single db in regression test
Summary:
For level_compaction_style regression test.
Closes https://github.com/facebook/rocksdb/pull/2397

Differential Revision: D5168545

Pulled By: lightmark

fbshipit-source-id: 195e4d84917e7c261d9f4fbe9aee5d104c9cb9a2
2017-06-01 15:56:59 -07:00
Aaron Gao 9b3ed83506 fix regression test
Summary:
fix regression test by not reporting stats when building db
Closes https://github.com/facebook/rocksdb/pull/2390

Differential Revision: D5159909

Pulled By: lightmark

fbshipit-source-id: c3f4b9deb9c6799ff84207fd341c529144f8158d
2017-05-31 15:41:45 -07:00
Aaron Gao cbc821c25b change regression rebuild to one level
Summary:
abandon fillseqdeterministic
test locally
Closes https://github.com/facebook/rocksdb/pull/2290

Differential Revision: D5151867

Pulled By: lightmark

fbshipit-source-id: 4c8a24cc937212ffb5ceb9bfaf7288eb8726d0c1
2017-05-30 16:41:21 -07:00
Yi Wu 0be636bf70 Fix db_bench build break with blob db
Summary:
Lite build does not recognize FLAGS_use_blob_db. Fixing it.
Closes https://github.com/facebook/rocksdb/pull/2372

Reviewed By: anirbanr-fb

Differential Revision: D5130773

Pulled By: yiwu-arbug

fbshipit-source-id: 43131d9d0be5811f2129af562be72cca26369cb3
2017-05-25 14:11:22 -07:00
Aaron Gao 135ee6a3fc fix tsan crash data race
Summary:
rand_ has data race risk
TEST_TMPDIR=\/dev\/shm\/rocksdb OPT=-g COMPILE_WITH_TSAN=1 CRASH_TEST_KILL_ODD=1887 make J=1 crash_test
Closes https://github.com/facebook/rocksdb/pull/2368

Differential Revision: D5127424

Pulled By: lightmark

fbshipit-source-id: b7f4d1430a5769b57da9f99037106749264b2ced
2017-05-25 10:44:07 -07:00
Andrew Kryczka bb01c1880c Introduce max_background_jobs mutable option
Summary:
- `max_background_flushes` and `max_background_compactions` are still supported for backwards compatibility
- `base_background_compactions` is completely deprecated. Now we just throttle to one background compaction when there's no pressure.
- `max_background_jobs` is added to automatically partition the concurrent background jobs into flushes vs compactions. Currently it's very simple as we just allocate one-fourth of the jobs to flushes, and the remaining can be used for compactions.
- The test cases that set `base_background_compactions > 1` needed to be updated. I just grab the pressure token such that the desired number of compactions can be scheduled.
Closes https://github.com/facebook/rocksdb/pull/2205

Differential Revision: D4937461

Pulled By: ajkr

fbshipit-source-id: df52cbbd497e13bbc9a60560a5ac2a2526b3f1f9
2017-05-24 11:29:08 -07:00
Sagar Vemuri 85b8569ae8 Fix release build on Linux
Summary:
Release builds are failing on Linux with the error:
```
tools/db_stress.cc: In function ‘int main(int, char**)’:
tools/db_stress.cc:2365:12: error: ‘rocksdb::SyncPoint’ has not been declared
   rocksdb::SyncPoint::GetInstance()->SetCallBack(
            ^
tools/db_stress.cc:2370:12: error: ‘rocksdb::SyncPoint’ has not been declared
   rocksdb::SyncPoint::GetInstance()->SetCallBack(
            ^
tools/db_stress.cc:2375:12: error: ‘rocksdb::SyncPoint’ has not been declared
   rocksdb::SyncPoint::GetInstance()->EnableProcessing();
            ^
make[1]: *** [tools/db_stress.o] Error 1
make[1]: Leaving directory `/data/sandcastle/boxes/trunk-git-rocksdb-public'
make: *** [release] Error 2
```
Closes https://github.com/facebook/rocksdb/pull/2355

Differential Revision: D5113552

Pulled By: sagar0

fbshipit-source-id: 351df707277787da5633ba4a40e52edc7c895dc4
2017-05-23 14:57:05 -07:00
Yi Wu 578fb0b1dc Simple blob file dumper
Summary:
A simple blob file dumper.
Closes https://github.com/facebook/rocksdb/pull/2242

Differential Revision: D5097553

Pulled By: yiwu-arbug

fbshipit-source-id: c6e00d949fcd3658f9f68da9352f06339fac418d
2017-05-23 10:42:59 -07:00
Aaron Gao 3e86c0f07c disable direct reads for log and manifest and add direct io to tests
Summary:
Disable direct reads for log and manifest. Direct reads should not affect sequential_file
Also add kDirectIO for option_config_ in db_test_util
Closes https://github.com/facebook/rocksdb/pull/2337

Differential Revision: D5100261

Pulled By: lightmark

fbshipit-source-id: 0ebfd13b93fa1b8f9acae514ac44f8125a05868b
2017-05-22 18:41:28 -07:00
hyunwoo f720796e24 fixed typo
Summary:
fixed exisitng -> existing
Closes https://github.com/facebook/rocksdb/pull/2305

Differential Revision: D5070169

Pulled By: yiwu-arbug

fbshipit-source-id: 8c8450acf50757b767cf78b78314018395738d96
2017-05-16 11:07:58 -07:00
Andrew Kryczka 3fa9a39c68 Add GetAllKeyVersions API
Summary:
- Introduced an include/ file dedicated to db-related debug functions to avoid making db.h more complex
- Added debugging function, `GetAllKeyVersions()`, to return a listing of internal data for a range of user keys. The new `struct KeyVersion` exposes data similar to internal key without exposing any internal type.
- Migrated the "ldb idump" subcommand to use this function
- The API takes an inclusive-exclusive range to match behavior of "ldb idump". This will be quite annoying for users who want to query a single user key's versions :(.
Closes https://github.com/facebook/rocksdb/pull/2232

Differential Revision: D4976007

Pulled By: ajkr

fbshipit-source-id: cab375da53a7595d6575af2b7e3b776aa3ad793e
2017-05-12 15:54:06 -07:00
Anirban Rahut d85ff4953c Blob storage pr
Summary:
The final pull request for Blob Storage.
Closes https://github.com/facebook/rocksdb/pull/2269

Differential Revision: D5033189

Pulled By: yiwu-arbug

fbshipit-source-id: 6356b683ccd58cbf38a1dc55e2ea400feecd5d06
2017-05-10 15:14:44 -07:00
Siying Dong 264d3f540c Allow IntraL0 compaction in FIFO Compaction
Summary:
Allow an option for users to do some compaction in FIFO compaction, to pay some write amplification for fewer number of files.
Closes https://github.com/facebook/rocksdb/pull/2163

Differential Revision: D4895953

Pulled By: siying

fbshipit-source-id: a1ab608dd0627211f3e1f588a2e97159646e1231
2017-05-04 18:16:13 -07:00
Siying Dong d616ebea23 Add GPLv2 as an alternative license.
Summary: Closes https://github.com/facebook/rocksdb/pull/2226

Differential Revision: D4967547

Pulled By: siying

fbshipit-source-id: dd3b58ae1e7a106ab6bb6f37ab5c88575b125ab4
2017-04-27 18:06:12 -07:00
Tomas Kolda 04d58970cb AIX and Solaris Sparc Support
Summary:
Replacement of #2147

The change was squashed due to a lot of conflicts.
Closes https://github.com/facebook/rocksdb/pull/2194

Differential Revision: D4929799

Pulled By: siying

fbshipit-source-id: 5cd49c254737a1d5ac13f3c035f128e86524c581
2017-04-21 20:48:04 -07:00
Siying Dong 963eeba488 Revert how check_format_compatible.sh checkout release branches.
Summary:
In a previous commit, I changed the way to checkout release branches from "git checkout <branch_name>" to "git checkout origin/<branch_name>". However, this doesn't seem to work in our CI environment. Revert it.
Closes https://github.com/facebook/rocksdb/pull/2189

Differential Revision: D4922294

Pulled By: siying

fbshipit-source-id: 482c17f9b05e6ccb190876b050682fe5a458103d
2017-04-20 11:06:09 -07:00
Siying Dong 97005dbd5d tools/check_format_compatible.sh to cover option file loading too
Summary:
tools/check_format_compatible.sh will check a newer version of RocksDB can open option files generated by older version releases. In order to achieve that, a new parameter "--try_load_options" is added to ldb. With this parameter set, if option file exists, we load the option file and use it to open the DB. With this opiton set, we can validate option loading logic.
Closes https://github.com/facebook/rocksdb/pull/2178

Differential Revision: D4914989

Pulled By: siying

fbshipit-source-id: db114f7724fcb41e5e9483116d84d7c4b8389ca4
2017-04-20 10:26:37 -07:00
Maysam Yabandeh 8f61967881 Add cpu usage to regression benchmarks (4th attempt)
Summary:
Tested by running it on a remote machine.

I could not run it on the particular remote machine which has a different location for time command since it is busy and the script does not allow concurrent runs. So I tested it by hacking the script and replacing the command with "\$(hostname)" and confirmed that the scripts prints out the host name of the remote machine.
Closes https://github.com/facebook/rocksdb/pull/2181

Differential Revision: D4921654

Pulled By: maysamyabandeh

fbshipit-source-id: 8abb5ea9f7234f3c50a749576ccbb47ff605beb9
2017-04-20 09:31:09 -07:00
Maysam Yabandeh 927bbab25c Revert "Add cpu usage to regression benchmarks (3rd attempt)"
Summary:
This reverts commit 476e80be80.
Closes https://github.com/facebook/rocksdb/pull/2177

Differential Revision: D4914830

Pulled By: maysamyabandeh

fbshipit-source-id: 039299348ceb325aa721eb35e3a26e890f84ee74
2017-04-19 11:11:12 -07:00
Siying Dong 1553659d6a Add more recent versions to tools/check_format_compatible.sh
Summary:
Need to add more recent versions to tools/check_format_compatible.sh to meka sure backward and forward compatibility.
Closes https://github.com/facebook/rocksdb/pull/2175

Differential Revision: D4911585

Pulled By: siying

fbshipit-source-id: 943e6488757efb11bb6720d811c7ba949915c9de
2017-04-18 18:57:11 -07:00
Maysam Yabandeh 476e80be80 Add cpu usage to regression benchmarks (3rd attempt)
Summary:
Tested by running rocks/tools/debug_regression_test.sh and verifying the local output:
```
 cat local/rocks_regression_tests/OPTIONS-viewstate-66-1262-5000/2017-04-13-11-34-51/SUMMARY.csv
                               commit id,                benchmark,                     user@host,num-dbs,key-range,key-size,value-size,compress-rate,ops-per-thread,num-threads,  cache-size,flushes,compactions,ops-per-s,       p50,       p75,       p99,     p99.9,    p99.99,debug,real-sec,user-sec,sys-sec
d2dce5611a,               readrandom,                root@localhost,     12,     5000,      66,      1262,           50,           312,         16,  1073741824,      4,         16,   138458,      9380,     11530,     55200,  16803200,  32504000,    1,    0,    0,    0
d2dce5611a,         readwhilewriting,                root@localhost,     12,     5000,      66,      1262,           50,           312,         16,  1073741824,      4,         16,   104511,
Closes https://github.com/facebook/rocksdb/pull/2157

Differential Revision: D4909238

Pulled By: maysamyabandeh

fbshipit-source-id: dc7bb8569c3c33b9f7c4ba47a757b24d27bb3b31
2017-04-18 17:11:25 -07:00
Siying Dong c49d704656 Add DB:ResetStats()
Summary:
Add a function to allow users to reset internal stats without restarting the DB.
Closes https://github.com/facebook/rocksdb/pull/2167

Differential Revision: D4907939

Pulled By: siying

fbshipit-source-id: ab2dd85b88aabe9380da7485320a1d460d3e1f68
2017-04-18 16:56:48 -07:00
Aaron Gao 44fa8ece9b change use_direct_writes to use_direct_io_for_flush_and_compaction
Summary:
Replace Options::use_direct_writes with Options::use_direct_io_for_flush_and_compaction
Now if Options::use_direct_io_for_flush_and_compaction = true, we will enable direct io for both reads and writes for flush and compaction job. Whereas Options::use_direct_reads controls user reads like iterator and Get().
Closes https://github.com/facebook/rocksdb/pull/2117

Differential Revision: D4860912

Pulled By: lightmark

fbshipit-source-id: d93575a8a5e780cf7e40797287edc425ee648c19
2017-04-13 16:12:04 -07:00
Aaron Gao ba7da434ae fix db_stress crash caused by buggy kernel warning
Summary:
filter the warning out and only print it once.
Closes https://github.com/facebook/rocksdb/pull/2137

Differential Revision: D4870925

Pulled By: lightmark

fbshipit-source-id: 91b363ce7f70bce88b0780337f408fc4649139b8
2017-04-11 16:56:59 -07:00
Maysam Yabandeh 6a8d5c015b Revert "Report cpu usage using time command"
Summary:
This reverts commit 97ec8a1349.
Closes https://github.com/facebook/rocksdb/pull/2136

Differential Revision: D4870610

Pulled By: maysamyabandeh

fbshipit-source-id: cdbfba135b065562f38f704f350a9a4e63a9a122
2017-04-11 13:57:58 -07:00
Maysam Yabandeh 97ec8a1349 Report cpu usage using time command
Summary:
Run the time command before regression tests, parse the output, and add the numbers to the report.
Closes https://github.com/facebook/rocksdb/pull/2101

Differential Revision: D4862781

Pulled By: maysamyabandeh

fbshipit-source-id: 4a81caa5d14187d67093aad154c8f0ad56aba901
2017-04-10 14:59:31 -07:00
Maysam Yabandeh 9690653db5 Add a verify phase to benchmarks
Summary:
Check the result of the benchmark againt a specified truth_db, which is
expected to be produced using the same benchmark but perhaps on a
different commit or with different configs.

The verification is simple and assumes that key/values are generated
deterministically. This assumption would break if db_bench using rand
variable differently from the benchmark that produced truth_db.
Currently it is checked to work on fillrandom and readwhilewriting.

A param finish_after_writes is added to ensure that the background
writing thread will write the same number of entries between two
benchmarks.

Example:
$ TEST_TMPDIR=/dev/shm/truth_db ./db_bench
--benchmarks="fillrandom,readwhilewriting" --num=200000
--finish_after_writes=true
$ TEST_TMPDIR=/dev/shm/tmpdb ./db_bench
--benchmarks="fillrandom,readwhilewriting,verify" --truth_db
/dev/shm/truth_db/dbbench --num=200000 --finish_after_writes=true
Verifying db <= truth_db...
Verifying db >= truth_db...
...Verified
Closes https://github.com/facebook/rocksdb/pull/2098

Differential Revision: D4839233

Pulled By: maysamyabandeh

fbshipit-source-id: 2f4ed31
2017-04-07 11:39:12 -07:00
Sagar Vemuri 343b59d6ee Move various string utility functions into string_util
Summary:
This is an effort to club all string related utility functions into one common place, in string_util, so that it is easier for everyone to know what string processing functions are available. Right now they seem to be spread out across multiple modules, like logging and options_helper.

Check the sub-commits for easier reviewing.
Closes https://github.com/facebook/rocksdb/pull/2094

Differential Revision: D4837730

Pulled By: sagar0

fbshipit-source-id: 344278a
2017-04-06 14:54:12 -07:00
Siying Dong d2dce5611a Move some files under util/ to separate dirs
Summary:
Move some files under util/ to new directories env/, monitoring/ options/ and cache/
Closes https://github.com/facebook/rocksdb/pull/2090

Differential Revision: D4833681

Pulled By: siying

fbshipit-source-id: 2fd8bef
2017-04-05 19:09:16 -07:00
Aaron Gao af256eb2b7 build db every monday
Summary:
Rebuilding regression db at the first run every monday.
Closes https://github.com/facebook/rocksdb/pull/2093

Differential Revision: D4836961

Pulled By: lightmark

fbshipit-source-id: 22d6c25
2017-04-05 12:24:21 -07:00
Siying Dong 6ef8c620d3 Move auto_roll_logger and filename out of db/
Summary:
It is confusing to have auto_roll_logger to stay under db/, which has nothing to do with database. Move filename together as it is a dependency.
Closes https://github.com/facebook/rocksdb/pull/2080

Differential Revision: D4821141

Pulled By: siying

fbshipit-source-id: ca7d768
2017-04-03 18:39:14 -07:00
Aaron Gao 0537f515c2 fix run_remote with strong quoting
Summary:
add \' pair to avoid bash expanding before run remotely
Closes https://github.com/facebook/rocksdb/pull/2079

Differential Revision: D4821342

Pulled By: lightmark

fbshipit-source-id: 418ba41
2017-04-03 13:09:12 -07:00
Aaron Gao bd7d13835e test remote instead run remote in regression test
Summary:
avoid exit when $? != 0
Closes https://github.com/facebook/rocksdb/pull/2076

Differential Revision: D4815655

Pulled By: lightmark

fbshipit-source-id: 829299e
2017-03-31 18:54:11 -07:00
Aaron Gao c81a805fe6 test db existence on the remote host
Summary:
Fix the bug that previous test existence locally
Closes https://github.com/facebook/rocksdb/pull/2074

Differential Revision: D4813631

Pulled By: lightmark

fbshipit-source-id: eceb0d9
2017-03-31 14:54:17 -07:00
Aaron Gao 5fc1e6765a add -rf when remove db in regression test
Summary:
force remove db dir when rebuilding
Closes https://github.com/facebook/rocksdb/pull/2067

Differential Revision: D4811926

Pulled By: lightmark

fbshipit-source-id: ab068a2
2017-03-31 12:10:23 -07:00
Aaron Gao da175f7ecc exit with code 2 when there is already a db_bench running in regression test
Summary: Closes https://github.com/facebook/rocksdb/pull/2063

Differential Revision: D4805507

Pulled By: lightmark

fbshipit-source-id: 59ccb18
2017-03-30 14:09:11 -07:00
Aaron Gao f3607640a6 add ldb build to regression test
Summary:
add ldb to regression test in order to enable reuse db by creating checkpoint
Closes https://github.com/facebook/rocksdb/pull/2030

Differential Revision: D4800549

Pulled By: lightmark

fbshipit-source-id: d3a7325
2017-03-29 18:24:11 -07:00
Yi Wu 41fe9ad75b Hide usage of compaction_options_fifo from lite build
Summary:
...to fix lite build error.
Closes https://github.com/facebook/rocksdb/pull/2046

Differential Revision: D4785910

Pulled By: yiwu-arbug

fbshipit-source-id: b591f27
2017-03-28 13:39:13 -07:00
Shu Zhang 8dee8cad9e Enable fifo compaction benchmark to db_bench
Summary:
Added fifo benchmark to db_bench.
One thing i am not sure is that i am using CompactRange() instead of CompactFiles(). (may cause performance skew because CompactionRange() is not happening in current thread?)  For CompactFiles(), for some reason FIFO compaction doesn't work as expected. More insight is welcomed. I guess FIFO compaction doesn't work with file names? igorcanadi

test cmd:
./db_bench --compaction_style=2 --benchmarks=fillseqdeterministic --disable_auto_compactions --num_levels=1 --fifo_compaction_max_table_files_size_mb=10

---------------------- DB 0 LSM ---------------------
Level[0]: /000014.sst(size: 4211014 bytes)
fillseqdeterministic :       4.731 micros/op 211381 ops/sec;   23.4 MB/s
Closes https://github.com/facebook/rocksdb/pull/1734

Differential Revision: D4774964

Pulled By: siying

fbshipit-source-id: 9d08df6
2017-03-24 17:09:15 -07:00
Siying Dong e474df9470 db_bench: not need to check mmap for PlainTable
Summary:
PlainTable now supports non-mmap mode. We don't need to check it anymore.
Closes https://github.com/facebook/rocksdb/pull/1882

Differential Revision: D4751643

Pulled By: siying

fbshipit-source-id: ab14540
2017-03-22 11:09:13 -07:00
Siying Dong 17866ecc3a Allow Users to change customized ldb tools' header in help printing
Summary: Closes https://github.com/facebook/rocksdb/pull/2018

Differential Revision: D4748448

Pulled By: siying

fbshipit-source-id: a54c2f9
2017-03-21 17:39:12 -07:00
Leonidas Galanis a2a883318b remove deleted option from benchmark.sh
Summary:
Removed max_grandparent_overlap_factor from benchmark.sh since it is not a valid option anymore.
Closes https://github.com/facebook/rocksdb/pull/2015

Differential Revision: D4748229

Pulled By: lgalanis

fbshipit-source-id: c3869ea
2017-03-21 12:54:13 -07:00
Aaron Gao 78cb195595 add checkpoint to ldb
Summary: Closes https://github.com/facebook/rocksdb/pull/2017

Differential Revision: D4747656

Pulled By: lightmark

fbshipit-source-id: c52f160
2017-03-21 11:54:11 -07:00
Aaron Gao 93c68b642e change regression bash file with debug mode
Summary:
add debug mode for better debugging
refactor some regex
change micros/op to ops/sec
Closes https://github.com/facebook/rocksdb/pull/1999

Differential Revision: D4742806

Pulled By: lightmark

fbshipit-source-id: 0fe3ae6
2017-03-20 17:39:17 -07:00
Andrew Kryczka e66221add4 fix db_bench rate limiter callsites
Summary:
pass nullptr as stats object for db_bench-specific rate limiters since its stats are intended to capture background write activity only.
Closes https://github.com/facebook/rocksdb/pull/1997

Differential Revision: D4726806

Pulled By: ajkr

fbshipit-source-id: 8e4b225
2017-03-16 17:54:12 -07:00
Maysam Yabandeh 11526252cc Pinnableslice (2nd attempt)
Summary:
PinnableSlice

    Summary:
    Currently the point lookup values are copied to a string provided by the
    user. This incures an extra memcpy cost. This patch allows doing point lookup
    via a PinnableSlice which pins the source memory location (instead of
    copying their content) and releases them after the content is consumed
    by the user. The old API of Get(string) is translated to the new API
    underneath.

    Here is the summary for improvements:

    value 100 byte: 1.8% regular, 1.2% merge values
    value 1k byte: 11.5% regular, 7.5% merge values
    value 10k byte: 26% regular, 29.9% merge values
    The improvement for merge could be more if we extend this approach to
    pin the merge output and delay the full merge operation until the user
    actually needs it. We have put that for future work.

    PS:
    Sometimes we observe a small decrease in performance when switching from
    t5452014 to this patch but with the old Get(string) API. The d
Closes https://github.com/facebook/rocksdb/pull/1756

Differential Revision: D4391738

Pulled By: maysamyabandeh

fbshipit-source-id: 6f3edd3
2017-03-13 11:54:10 -07:00
Reid Horuff ebd5639b6d Add ability to search for key prefix in sst_dump tool
Summary:
Add the flag --prefix to the sst_dump tool
This flag is similar to, and exclusive from, the --from flag.

--prefix=0x00FF will return all rows prefixed with 0x00FF.
The --to flag may also be specified and will work as expected.

These changes were used to help in debugging the power cycle corruption issue and theses changes were tested by scanning through a udb.
Closes https://github.com/facebook/rocksdb/pull/1984

Differential Revision: D4691814

Pulled By: reidHoruff

fbshipit-source-id: 027f261
2017-03-13 10:39:12 -07:00
Maysam Yabandeh 5dae019477 Revert "Report cpu usage using time command"
Summary:
This reverts commit d43adf21bb.

The patch has caused problems in regression tests. Will revert it for now until we figure how to debug the problems regression tests.
Closes https://github.com/facebook/rocksdb/pull/1975

Differential Revision: D4682880

Pulled By: maysamyabandeh

fbshipit-source-id: 84df83a
2017-03-09 11:09:13 -08:00
Maysam Yabandeh d43adf21bb Report cpu usage using time command
Summary:
It augments the regression benchmarks with a time command, parses the output, and print them to the SUMMARY.csv file.

I tested a variation of the script locally. Any idea how to do run a test that also involves writing to scuba tables?
Closes https://github.com/facebook/rocksdb/pull/1967

Differential Revision: D4679470

Pulled By: maysamyabandeh

fbshipit-source-id: 44dac30
2017-03-08 17:54:11 -08:00
Andrew Kryczka 2a5daa06f0 Add stderr log level for ldb backup commands
Summary:
Also extracted the common logic into a base class, BackupableCommand.
Closes https://github.com/facebook/rocksdb/pull/1939

Differential Revision: D4630121

Pulled By: ajkr

fbshipit-source-id: 04bb067
2017-03-03 13:24:15 -08:00
Islam AbdelRahman f89b3893c0 Remove skip_table_builder_flush and default it to true
Summary:
This option is needed to be enabled for Direct IO
and I cannot think of a reason where we need to disable it

remove it and default it to true
Closes https://github.com/facebook/rocksdb/pull/1944

Differential Revision: D4641088

Pulled By: IslamAbdelRahman

fbshipit-source-id: d7085b9
2017-03-02 16:54:10 -08:00
Andrew Kryczka cc253982dd Use more default options in db_bench
Summary:
The default behavior was too weird because, previously, we got the L0 file size limit (64MB) from Options default and L1+ file size limit (2MB) from the hardcoded value. We should get both from Options default.
Closes https://github.com/facebook/rocksdb/pull/1943

Differential Revision: D4640301

Pulled By: ajkr

fbshipit-source-id: fd8c0fd
2017-03-02 10:54:11 -08:00
Islam AbdelRahman be3e5568be Fix unaligned reads in read cache
Summary:
- Fix unaligned reads in read cache by using RandomAccessFileReader
- Allow read cache flags in db_bench
Closes https://github.com/facebook/rocksdb/pull/1916

Differential Revision: D4610885

Pulled By: IslamAbdelRahman

fbshipit-source-id: 2aa1dc8
2017-02-27 13:09:12 -08:00
Aaron Gao e7d902e693 add direct_io and compaction_readahead_size in db_stress
Summary:
add direct_io and compaction_readahead_size in db_stress
test direct_io under db_stress with compaction_readahead_size enabled to capture bugs found in production.
`./db_stress --allow_concurrent_memtable_write=0 --use_direct_reads --use_direct_writes --compaction_readahead_size=4096`
Closes https://github.com/facebook/rocksdb/pull/1906

Differential Revision: D4604514

Pulled By: IslamAbdelRahman

fbshipit-source-id: ebbf0ee
2017-02-23 11:39:14 -08:00
Sagar Vemuri eb912a927e Remove disableDataSync option
Summary:
Remove disableDataSync, and another similarly named disable_data_sync options.
This is being done to simplify options, and also because the performance gains of this feature can be achieved by other methods.
Closes https://github.com/facebook/rocksdb/pull/1859

Differential Revision: D4541292

Pulled By: sagar0

fbshipit-source-id: 5b3a6ca
2017-02-13 11:09:13 -08:00
Andrew Kryczka 3b4ac8076b Clarify ldb column family argument
Summary:
move the argument description to the right section, make it clearer that the '=' sign is required, and use it in one subcommand where it seemed forgotten before.
Closes https://github.com/facebook/rocksdb/pull/1840

Differential Revision: D4515096

Pulled By: ajkr

fbshipit-source-id: 7b5b1c1
2017-02-07 11:54:10 -08:00
Andrew Kryczka d70ce7ee0b Move db_bench flags out of unnamed namespace
Summary:
I want to be able to, e.g., DECLARE_string(statistics_string); in my application such that I can override the default value of statistics_string. For this to work, we need to remove the unnamed namespace containing all the flags, and make sure all variables/functions covered by that namespace are static.

Replaces #1828 due to internal tool issues.
Closes https://github.com/facebook/rocksdb/pull/1844

Differential Revision: D4515124

Pulled By: ajkr

fbshipit-source-id: 23b695e
2017-02-07 11:39:12 -08:00
Dmitri Smirnov 0a4cdde50a Windows thread
Summary:
introduce new methods into a public threadpool interface,
- allow submission of std::functions as they allow greater flexibility.
- add Joining methods to the implementation to join scheduled and submitted jobs with
  an option to cancel jobs that did not start executing.
- Remove ugly `#ifdefs` between pthread and std implementation, make it uniform.
- introduce pimpl for a drop in replacement of the implementation
- Introduce rocksdb::port::Thread typedef which is a replacement for std::thread.  On Posix Thread defaults as before std::thread.
- Implement WindowsThread that allocates memory in a more controllable manner than windows std::thread with a replaceable implementation.
- should be no functionality changes.
Closes https://github.com/facebook/rocksdb/pull/1823

Differential Revision: D4492902

Pulled By: siying

fbshipit-source-id: c74cb11
2017-02-06 14:54:18 -08:00
Andrew Kryczka 37d4a79e99 Deserialize custom Statistics object in db_bench
Summary:
Added -statistics_string to deserialize a Statistics object using the factory functions registered by applications.
Closes https://github.com/facebook/rocksdb/pull/1812

Differential Revision: D4469811

Pulled By: ajkr

fbshipit-source-id: 2d80862
2017-01-26 15:24:16 -08:00
Andrew Kryczka 17c1180603 Generalize Env registration framework
Summary:
The Env registration framework supports registering client Envs and selecting which one to instantiate according to a text field. This enabled things like adding the -env_uri argument to db_bench, so the same binary could be reused with different Envs just by changing CLI config.

Now this problem has come up again in a non-Env context, as I want to instantiate a client Statistics implementation from db_bench, which is configured entirely via text parameters. Also, in the future we may wish to use it for deserializing client objects when loading OPTIONS file.

This diff generalizes the Env registration logic to work with arbitrary types.

- Generalized registration and instantiation code by templating them
- The entire implementation is in a header file as that's Google style guide's recommendation for template definitions
- Pattern match with std::regex_match rather than checking prefix, which was the previous behavior
- Rename functions/files to be non-Env-specific
Closes https://github.com/facebook/rocksdb/pull/1776

Differential Revision: D4421933

Pulled By: ajkr

fbshipit-source-id: 34647d1
2017-01-25 16:09:14 -08:00
Maysam Yabandeh d0ba8ec8f9 Revert "PinnableSlice"
Summary:
This reverts commit 54d94e9c2c.

The pull request was landed by mistake.
Closes https://github.com/facebook/rocksdb/pull/1755

Differential Revision: D4391678

Pulled By: maysamyabandeh

fbshipit-source-id: 36d5149
2017-01-08 14:24:12 -08:00
Maysam Yabandeh 54d94e9c2c PinnableSlice
Summary:
Currently the point lookup values are copied to a string provided by the user.
This incures an extra memcpy cost. This patch allows doing point lookup
via a PinnableSlice which pins the source memory location (instead of
copying their content) and releases them after the content is consumed
by the user. The old API of Get(string) is translated to the new API
underneath.

 Here is the summary for improvements:
 1. value 100 byte: 1.8%  regular, 1.2% merge values
 2. value 1k   byte: 11.5% regular, 7.5% merge values
 3. value 10k byte: 26% regular,    29.9% merge values

 The improvement for merge could be more if we extend this approach to
 pin the merge output and delay the full merge operation until the user
 actually needs it. We have put that for future work.

PS:
Sometimes we observe a small decrease in performance when switching from
t5452014 to this patch but with the old Get(string) API. The difference
is a little and could be noise. More importantly it is safely
cancelled
Closes https://github.com/facebook/rocksdb/pull/1732

Differential Revision: D4374613

Pulled By: maysamyabandeh

fbshipit-source-id: a077f1a
2017-01-08 13:54:13 -08:00
Dmitri Smirnov e04480faed Fix MS warnings. Use ROCKSDB_Prsz for size_t.
Summary: Closes https://github.com/facebook/rocksdb/pull/1737

Differential Revision: D4378852

Pulled By: yiwu-arbug

fbshipit-source-id: ba8b02d
2017-01-06 16:24:14 -08:00
Yi Wu 640d724808 Update db_bench and sst_dump to test with block cache mid-point inser?
Summary:
?tion

Add flags in db_bench to test with block cache mid-point insertion.
Also update sst_dump to dump total block sizes of each type. I find it
useful to look at these test db stats and I don't know if we have them
elsewhere.
Closes https://github.com/facebook/rocksdb/pull/1706

Differential Revision: D4355812

Pulled By: yiwu-arbug

fbshipit-source-id: 3e4a348
2017-01-03 18:39:14 -08:00
Aaron Gao 972f96b3fb direct io write support
Summary:
rocksdb direct io support

```
[gzh@dev11575.prn2 ~/rocksdb] ./db_bench -benchmarks=fillseq --num=1000000
Initializing RocksDB Options from the specified file
Initializing RocksDB Options from command-line flags
RocksDB:    version 5.0
Date:       Wed Nov 23 13:17:43 2016
CPU:        40 * Intel(R) Xeon(R) CPU E5-2660 v2 @ 2.20GHz
CPUCache:   25600 KB
Keys:       16 bytes each
Values:     100 bytes each (50 bytes after compression)
Entries:    1000000
Prefix:    0 bytes
Keys per prefix:    0
RawSize:    110.6 MB (estimated)
FileSize:   62.9 MB (estimated)
Write rate: 0 bytes/second
Compression: Snappy
Memtablerep: skip_list
Perf Level: 1
WARNING: Assertions are enabled; benchmarks unnecessarily slow
------------------------------------------------
Initializing RocksDB Options from the specified file
Initializing RocksDB Options from command-line flags
DB path: [/tmp/rocksdbtest-112628/dbbench]
fillseq      :       4.393 micros/op 227639 ops/sec;   25.2 MB/s

[gzh@dev11575.prn2 ~/roc
Closes https://github.com/facebook/rocksdb/pull/1564

Differential Revision: D4241093

Pulled By: lightmark

fbshipit-source-id: 98c29e3
2016-12-22 13:09:19 -08:00
Siying Dong 7bd725e962 db_bench: introduce --benchmark_read_rate_limit
Summary:
Add the parameter in db_bench to help users to measure latency histogram with constant read rate.
Closes https://github.com/facebook/rocksdb/pull/1683

Differential Revision: D4341387

Pulled By: siying

fbshipit-source-id: 1b4b276
2016-12-19 12:39:11 -08:00
Daniel Black 816c1e30ca gcc-7 requires include <functional> for std::function
Summary:
Fixes compile error:

In file included from ./util/statistics.h:17:0,
                 from ./util/stop_watch.h:8,
                 from ./util/perf_step_timer.h:9,
                 from ./util/iostats_context_imp.h:8,
                 from ./util/posix_logger.h:27,
                 from ./port/util_logger.h:18,
                 from ./db/auto_roll_logger.h:15,
                 from db/auto_roll_logger.cc:6:
./util/thread_local.h:65:16: error: 'function' in namespace 'std' does not name a template type
   typedef std::function<void(void*, void*)> FoldFunc;
Closes https://github.com/facebook/rocksdb/pull/1656

Differential Revision: D4318702

Pulled By: yiwu-arbug

fbshipit-source-id: 8c5d17a
2016-12-16 11:24:18 -08:00
Daniel Black 0ab6fc167f Gcc-7 buffer size insufficient
Summary:
Bunch of commits related to insufficient buffer size. Errors in individual commits.
Closes https://github.com/facebook/rocksdb/pull/1673

Differential Revision: D4332127

Pulled By: IslamAbdelRahman

fbshipit-source-id: 878f73c
2016-12-14 19:24:26 -08:00
Islam AbdelRahman d71e728c7a Print user collected properties in sst_dump
Summary:
Include a dump of user_collected_properties in sst_dump
Closes https://github.com/facebook/rocksdb/pull/1668

Differential Revision: D4325078

Pulled By: IslamAbdelRahman

fbshipit-source-id: 226b6d6
2016-12-14 11:24:11 -08:00
Daniel Black 1f6f7e3e89 cast to signed char in ldb_cmd_test for ppc64le
Summary:
char is unsigned on power by default causing this test to fail with the FF case. ppc64 return 255 while x86 returned -1. Casting works on both platforms.
Closes https://github.com/facebook/rocksdb/pull/1500

Differential Revision: D4308775

Pulled By: yiwu-arbug

fbshipit-source-id: db3e6e0
2016-12-12 14:39:18 -08:00
Andrew Kryczka dc64f46b1c Add db_bench option for stderr logging
Summary:
The info log file ("LOG") is stored in the db directory by default. When the db is on a distributed env, this is unnecessarily slow. So, I added an option to db_bench to just print the info log messages to stderr.
Closes https://github.com/facebook/rocksdb/pull/1641

Differential Revision: D4309348

Pulled By: ajkr

fbshipit-source-id: 1e6f851
2016-12-09 16:54:14 -08:00
Andrew Kryczka 5241e0dbfc fix db_bench argument type
Summary: Closes https://github.com/facebook/rocksdb/pull/1633

Differential Revision: D4298161

Pulled By: yiwu-arbug

fbshipit-source-id: 2c7af35
2016-12-08 11:09:14 -08:00
Andrew Kryczka 2c2ba68247 db_stress support for range deletions
Summary:
made db_stress capable of adding range deletions to its db and verifying their correctness. i'll make db_crashtest.py use this option later once the collapsing optimization (https://github.com/facebook/rocksdb/pull/1614) is committed because currently it slows down the test too much.
Closes https://github.com/facebook/rocksdb/pull/1625

Differential Revision: D4293939

Pulled By: ajkr

fbshipit-source-id: d3beb3a
2016-12-07 13:09:24 -08:00
Andrew Kryczka fa50fffaf5 Option to expand range tombstones in db_bench
Summary:
When enabled, this option replaces range tombstones with a sequence of
point tombstones covering the same range. This can be used to A/B test perf of
range tombstones vs sequential point tombstones, and help us find the cross-over
point, i.e., the size of the range above which range tombstones outperform point
tombstones.
Closes https://github.com/facebook/rocksdb/pull/1594

Differential Revision: D4246312

Pulled By: ajkr

fbshipit-source-id: 3b00b23
2016-12-06 18:09:14 -08:00
Yi Wu 56281f3a97 Add memtable_insert_with_hint_prefix_size option to db_bench
Summary:
Add memtable_insert_with_hint_prefix_size option to db_bench
Closes https://github.com/facebook/rocksdb/pull/1604

Differential Revision: D4260549

Pulled By: yiwu-arbug

fbshipit-source-id: cee5ef7
2016-12-01 16:54:16 -08:00
Islam AbdelRahman 4a21b1402c Cache heap::downheap() root comparison (optimize heap cmp call)
Summary:
Reduce number of comparisons in heap by caching which child node in the first level is smallest (left_child or right_child)
So next time we can compare directly against the smallest child

I see that the total number of calls to comparator drops significantly when using this optimization

Before caching (~2mil key comparison for iterating the DB)
```
$ DEBUG_LEVEL=0 make db_bench -j64 && ./db_bench --benchmarks="readseq" --db="/dev/shm/heap_opt" --use_existing_db --disable_auto_compactions --cache_size=1000000000  --perf_level=2
readseq      :       0.338 micros/op 2959201 ops/sec;  327.4 MB/s user_key_comparison_count = 2000008
```
After caching (~1mil key comparison for iterating the DB)
```
$ DEBUG_LEVEL=0 make db_bench -j64 && ./db_bench --benchmarks="readseq" --db="/dev/shm/heap_opt" --use_existing_db --disable_auto_compactions --cache_size=1000000000 --perf_level=2
readseq      :       0.309 micros/op 3236801 ops/sec;  358.1 MB/s user_key_comparison_count = 1000011
```

It also improves
Closes https://github.com/facebook/rocksdb/pull/1600

Differential Revision: D4256027

Pulled By: IslamAbdelRahman

fbshipit-source-id: 76fcc66
2016-12-01 13:39:14 -08:00
Igor Canadi 3f407b065c Kill flashcache code in RocksDB
Summary:
Now that we have userspace persisted cache, we don't need flashcache anymore.
Closes https://github.com/facebook/rocksdb/pull/1588

Differential Revision: D4245114

Pulled By: igorcanadi

fbshipit-source-id: e2c1c72
2016-12-01 10:09:22 -08:00
Andrew Kryczka fd43ee09da Range deletion microoptimizations
Summary:
- Made RangeDelAggregator's InternalKeyComparator member a reference-to-const so we don't need to copy-construct it. Also added InternalKeyComparator to ImmutableCFOptions so we don't need to construct one for each DBIter.
- Made MemTable::NewRangeTombstoneIterator and the table readers' NewRangeTombstoneIterator() functions return nullptr instead of NewEmptyInternalIterator to avoid the allocation. Updated callers accordingly.
Closes https://github.com/facebook/rocksdb/pull/1548

Differential Revision: D4208169

Pulled By: ajkr

fbshipit-source-id: 2fd65cf
2016-11-21 12:24:13 -08:00
Andrew Kryczka 018bb2ebf5 DeleteRange support for db_bench
Summary:
Added a few options to configure when to add range tombstones during
any benchmark involving writes.
Closes https://github.com/facebook/rocksdb/pull/1522

Differential Revision: D4187388

Pulled By: ajkr

fbshipit-source-id: 2c8a473
2016-11-15 17:39:47 -08:00
Andrew Kryczka 53b693f5fe ldb support for range delete
Summary:
Add a subcommand to ldb with which we can delete a range of keys.
Closes https://github.com/facebook/rocksdb/pull/1521

Differential Revision: D4186338

Pulled By: ajkr

fbshipit-source-id: b8e9861
2016-11-15 15:54:20 -08:00
Lijun Tang adb665e0bf Allowed delayed_write_rate option to be dynamically set.
Summary: Closes https://github.com/facebook/rocksdb/pull/1488

Differential Revision: D4157784

Pulled By: siying

fbshipit-source-id: f150081
2016-11-12 15:54:11 -08:00
Anirban Rahut 14c0380e78 Convenience option to parse an internal key on command line
Summary:
enhancing sst_dump to be able to parse internal key
Closes https://github.com/facebook/rocksdb/pull/1482

Differential Revision: D4154175

Pulled By: siying

fbshipit-source-id: b0e28b1
2016-11-10 10:09:21 -08:00
Peter (Stig) Edwards 144cdb8f16 16384 as e.g .value for compression_max_dict_bytes
Summary:
Use 16384 as e.g .value for ldb the --compression_max_dict_bytes option.
I think 14 was copy and pasted from the options in the lines above.
Closes https://github.com/facebook/rocksdb/pull/1483

Differential Revision: D4154393

Pulled By: siying

fbshipit-source-id: ef53a69
2016-11-09 11:24:20 -08:00
Andrew Kryczka 9e7cf3469b DeleteRange user iterator support
Summary:
Note: reviewed in  https://reviews.facebook.net/D65115

- DBIter maintains a range tombstone accumulator. We don't cleanup obsolete tombstones yet, so if the user seeks back and forth, the same tombstones would be added to the accumulator multiple times.
- DBImpl::NewInternalIterator() (used to make DBIter's underlying iterator) adds memtable/L0 range tombstones, L1+ range tombstones are added on-demand during NewSecondaryIterator() (see D62205)
- DBIter uses ShouldDelete() when advancing to check whether keys are covered by range tombstones
Closes https://github.com/facebook/rocksdb/pull/1464

Differential Revision: D4131753

Pulled By: ajkr

fbshipit-source-id: be86559
2016-11-04 12:09:22 -07:00
Benoit Girard 2b16d664cb Change max_bytes_for_level_multiplier to double
Summary: Closes https://github.com/facebook/rocksdb/pull/1427

Differential Revision: D4094732

Pulled By: yiwu-arbug

fbshipit-source-id: b9b79e9
2016-11-01 21:09:23 -07:00
Siying Dong f9eb56791a db_bench: --dump_malloc_stats takes no effect
Summary:
Fix the bug that --dump_malloc_stats is set before opening the DB.
Closes https://github.com/facebook/rocksdb/pull/1447

Differential Revision: D4106001

Pulled By: siying

fbshipit-source-id: 4e746da
2016-10-31 14:54:26 -07:00
Kien-hung Li eeb27e1bbd Add handy option to turn on direct I/O in db_bench (#1424) 2016-10-28 10:36:05 -07:00
Yueh-Hsuan Chiang f83cd64c0b Fix a bug that mistakenly disable regression_test.sh to update commit (#1415)
Summary:
Fix a bug that mistakenly disable regression_test.sh to update commit

Test Plan:
regression_test.sh
2016-10-21 17:26:24 -07:00
Aaron Gao 08616b4933 [db_bench] add filldeterministic (Universal+level compaction)
Summary:
in db_bench, we can dynamically create a rocksdb database that guarantees the shape of its LSM.
universal + level compaction
no fifo compaction
no multi db support

Test Plan:
./db_bench -benchmarks=fillseqdeterministic -compaction_style=1 -num_levels=3 --disable_auto_compactions -num=1000000 -value_size=1000
```
---------------------- LSM ---------------------
Level[0]: /000480.sst(size: 35060275 bytes)
Level[0]: /000479.sst(size: 70443197 bytes)
Level[0]: /000478.sst(size: 141600383 bytes)
Level[1]: /000341.sst - /000475.sst(total size: 284726629 bytes)
Level[2]: /000071.sst - /000340.sst(total size: 568649806 bytes)
fillseqdeterministic :      60.447 micros/op 16543 ops/sec;   16.0 MB/s
```

Reviewers: sdong, andrewkr, IslamAbdelRahman, yhchiang

Reviewed By: yhchiang

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D63111
2016-10-18 16:30:57 -07:00
dhruba borthakur 5027dd17a7 Fix a minor bug in the ldb tool that was not selecting the specified (#1399)
column family for compaction.
2016-10-17 10:40:30 -07:00
Siying Dong a249a0b75b check_format_compatible.sh to use some branch which allows to run with GCC 4.8 (#1393)
Summary:
Some older tags don't run GCC 4.8 with FB internal setting. Fixed them and created branches. Change the format compatible script accordingly.

Also add more releases to check format compatibility.
2016-10-13 16:15:55 -07:00
Kefu Chai 21f4bb5a89 cmake support for linux and osx (#1358)
* enable cmake to work on linux and osx also

* port part of build_detect_platform not covered by thirdparty.inc
  to cmake.
  - detect fallocate()
  - detect malloc_usable_size()
  - detect JeMalloc
  - detect snappy
* check for asan,tsan,ubsan
* create 'build_version.cc' in build directory.
* add `check` target to support 'make check'.
* add `tools` target to match its counterpart in Makefile.
* use `date` on non-win32 platforms.
* pass different cflags on non-win32 platforms
* detect pthead library using FindThread cmake module.
* enable CMP0042 to silence the cmake warning on osx
* reorder the linked libraries. because testutillib references gtest, to
  enable the linker to find the referenced symbols, we need to put gtest
  after testutillib.

Signed-off-by: Marcus Watts <mwatts@redhat.com>
Signed-off-by: Kefu Chai <kchai@redhat.com>

* hash_table_bench.cc: fix build without gflags

Signed-off-by: Kefu Chai <kchai@redhat.com>

* remove gtest from librocksdb linkage

testharness.cc is included in librocksdb sources, and it uses gtest. but
gtest is not supposed to be part of the public API of librocksdb. so, in
this change, the testharness.cc is moved out out librocksdb, and is
built as an object target, then linked with the tools and tests instead.

Signed-off-by: Marcus Watts <mwatts@redhat.com>
Signed-off-by: Kefu Chai <kchai@redhat.com>
2016-09-28 11:53:15 -07:00
Yi Wu 9ed928e7a9 Split DBOptions into ImmutableDBOptions and MutableDBOptions
Summary: Use ImmutableDBOptions/MutableDBOptions internally and DBOptions only for user-facing APIs. MutableDBOptions is barely a placeholder for now. I'll start to move options to MutableDBOptions in following diffs.

Test Plan:
  make all check

Reviewers: yhchiang, IslamAbdelRahman, sdong

Reviewed By: sdong

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D64065
2016-09-23 16:34:04 -07:00
rockeet 4c3f4496b5 Add TableBuilderOptions::level and relevant changes (#1335) 2016-09-17 22:30:43 -07:00
sdong 607628d349 Support ZSTD with finalized format
Summary:
ZSTD 1.0.0 is coming. We can finally add a support of ZSTD without worrying about compatibility.
Still keep ZSTDNotFinal for compatibility reason.

Test Plan: Run all tests. Run db_bench with ZSTD version with RocksDB built with ZSTD 1.0 and older.

Reviewers: andrewkr, IslamAbdelRahman

Reviewed By: IslamAbdelRahman

Subscribers: cyan, igor, IslamAbdelRahman, leveldb, andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D63141
2016-09-06 12:22:16 -07:00
Yi Wu a88677d2cf Remove ImmutableCFOptions from public API
Summary: There's no reference to ImmutableCFOptions elsewhere in /include/rocksdb. ImmutableCFOptions was introduced in this commit (5665e5e285) but later its reference in /include/rocksdb/table.h is removed.

Test Plan:
  make all check

Reviewers: IslamAbdelRahman, sdong, yhchiang

Reviewed By: yhchiang

Subscribers: yhchiang, andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D63177
2016-09-02 14:16:31 -07:00
Islam AbdelRahman 5051755e35 Fix db_bench memory use after free (detected by clang_analyze)
Summary: Fix using `arg[i].thread` after deleting it

Test Plan: run clang_analyze

Subscribers: andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D63171
2016-09-02 10:58:08 -07:00
sdong 32149059f9 Merge options source_compaction_factor, max_grandparent_overlap_bytes and expanded_compaction_factor into max_compaction_bytes
Summary: To reduce number of options, merge source_compaction_factor, max_grandparent_overlap_bytes and expanded_compaction_factor into max_compaction_bytes.

Test Plan: Add two new unit tests. Run all existing tests, including jtest.

Reviewers: yhchiang, igor, IslamAbdelRahman

Reviewed By: IslamAbdelRahman

Subscribers: leveldb, andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D59829
2016-09-01 14:33:24 -07:00
Islam AbdelRahman b49b92cf28 Introduce Read amplification bitmap (read amp statistics)
Summary:
Add ReadOptions::read_amp_bytes_per_bit option which allow us to create a bitmap for every data block we read
the bitmap will contain (block_size / read_amp_bytes_per_bit) bits.

We will use this bitmap to mark which bytes have been used of the block so we can calculate the read amplification

Test Plan: added new tests

Reviewers: andrewkr, yhchiang, sdong

Reviewed By: sdong

Subscribers: yiwu, leveldb, march, andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D58707
2016-08-26 18:55:58 -07:00
Islam AbdelRahman cce702a6e4 [db_bench] Support single benchmark arguments (Repeat for X times, Warm up for X times), Support CombinedStats (AVG / MEDIAN)
Summary:
This diff allow us to run a single benchmark X times and warm it up for Y times. and see the AVG & MEDIAN throughput of these X runs
for example

```
$ ./db_bench --benchmarks="fillseq,readseq[X5-W2]"
Initializing RocksDB Options from the specified file
Initializing RocksDB Options from command-line flags
RocksDB:    version 4.12
Date:       Wed Aug 24 10:45:26 2016
CPU:        32 * Intel(R) Xeon(R) CPU E5-2660 0 @ 2.20GHz
CPUCache:   20480 KB
Keys:       16 bytes each
Values:     100 bytes each (50 bytes after compression)
Entries:    1000000
Prefix:    0 bytes
Keys per prefix:    0
RawSize:    110.6 MB (estimated)
FileSize:   62.9 MB (estimated)
Write rate: 0 bytes/second
Compression: Snappy
Memtablerep: skip_list
Perf Level: 1
WARNING: Assertions are enabled; benchmarks unnecessarily slow
------------------------------------------------
Initializing RocksDB Options from the specified file
Initializing RocksDB Options from command-line flags
DB path: [/tmp/rocksdbtest-8616/dbbench]
fillseq      :       4.695 micros/op 212971 ops/sec;   23.6 MB/s
DB path: [/tmp/rocksdbtest-8616/dbbench]
Warming up benchmark by running 2 times
readseq      :       0.214 micros/op 4677005 ops/sec;  517.4 MB/s
readseq      :       0.212 micros/op 4706834 ops/sec;  520.7 MB/s
Running benchmark for 5 times
readseq      :       0.218 micros/op 4588187 ops/sec;  507.6 MB/s
readseq      :       0.208 micros/op 4816538 ops/sec;  532.8 MB/s
readseq      :       0.213 micros/op 4685376 ops/sec;  518.3 MB/s
readseq      :       0.214 micros/op 4676787 ops/sec;  517.4 MB/s
readseq      :       0.217 micros/op 4618532 ops/sec;  510.9 MB/s
readseq [AVG    5 runs] : 4677084 ops/sec;  517.4 MB/sec
readseq [MEDIAN 5 runs] : 4676787 ops/sec;  517.4 MB/sec
```

Test Plan: run db_bench

Reviewers: sdong, andrewkr, yhchiang

Reviewed By: yhchiang

Subscribers: andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D62235
2016-08-25 12:57:35 -07:00