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add disable wal to db_bench 

Summary:
as subject.

./db_bench --benchmarks=fillrandom --num=1000000 --disable_data_sync=1 --write_buffer_size=50000000 --target_file_size_base=100000000 --disable_wal=1

LevelDB:    version 1.4
Date:       Sun Aug 19 16:01:59 2012
CPU:        8 * Intel(R) Xeon(R) CPU           L5630  @ 2.13GHz
CPUCache:   12288 KB
Keys:       16 bytes each
Values:     100 bytes each (50 bytes after compression)
Entries:    1000000
RawSize:    110.6 MB (estimated)
FileSize:   62.9 MB (estimated)
------------------------------------------------
fillrandom   :       4.591 micros/op 217797 ops/sec;   24.1 MB/s

./db_bench --benchmarks=fillrandom --num=1000000 --disable_data_sync=1 --write_buffer_size=50000000 --target_file_size_base=100000000

LevelDB:    version 1.4
Date:       Sun Aug 19 16:02:54 2012
CPU:        8 * Intel(R) Xeon(R) CPU           L5630  @ 2.13GHz
CPUCache:   12288 KB
Keys:       16 bytes each
Values:     100 bytes each (50 bytes after compression)
Entries:    1000000
RawSize:    110.6 MB (estimated)
FileSize:   62.9 MB (estimated)
------------------------------------------------
fillrandom   :       3.696 micros/op 270530 ops/sec;   29.9 MB/s

Test Plan: db_bench

Reviewers: dhruba

Differential Revision: https://reviews.facebook.net/D4767
This commit is contained in:
heyongqiang 2012-08-19 16:05:02 -07:00
parent 2aa514ec8c
commit deb1a1fa9b
1 changed files with 23 additions and 0 deletions
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23
db/db_bench.cc
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@ -128,6 +128,9 @@ static bool FLAGS_sync = false;
// If true, do not wait until data is synced to disk.
static bool FLAGS_disable_data_sync = false;
// If true, do not write WAL for write.
static bool FLAGS_disable_wal = false;
// Target level-0 file size for compaction
static int FLAGS_target_file_size_base = 2 * 1048576;
@ -140,6 +143,12 @@ static int FLAGS_max_bytes_for_level_base = 10 * 1048576;
// A multiplier to compute max bytes for level-N
static int FLAGS_max_bytes_for_level_multiplier = 10;
// Number of files in level-0 that will trigger put stop.
static int FLAGS_level0_stop_writes_trigger = 12;
// Nulber of files in level-0 that will slow down writes.
static int FLAGS_level0_slowdown_writes_trigger = 4;
// posix or hdfs environment
static leveldb::Env* FLAGS_env = leveldb::Env::Default();
@ -502,6 +511,8 @@ class Benchmark {
write_options_.sync = true;
}
write_options_.disableWAL = FLAGS_disable_wal;
void (Benchmark::*method)(ThreadState*) = NULL;
bool fresh_db = false;
int num_threads = FLAGS_threads;
@ -768,6 +779,9 @@ class Benchmark {
options.max_bytes_for_level_base = FLAGS_max_bytes_for_level_base;
options.max_bytes_for_level_multiplier =
FLAGS_max_bytes_for_level_multiplier;
options.level0_stop_writes_trigger = FLAGS_level0_stop_writes_trigger;
options.level0_slowdown_writes_trigger =
FLAGS_level0_slowdown_writes_trigger;
Status s = DB::Open(options, FLAGS_db, &db_);
if (!s.ok()) {
fprintf(stderr, "open error: %s\n", s.ToString().c_str());
@ -1056,6 +1070,9 @@ int main(int argc, char** argv) {
} else if (sscanf(argv[i], "--disable_data_sync=%d%c", &n, &junk) == 1 &&
(n == 0 || n == 1)) {
FLAGS_disable_data_sync = n;
} else if (sscanf(argv[i], "--disable_wal=%d%c", &n, &junk) == 1 &&
(n == 0 || n == 1)) {
FLAGS_disable_wal = n;
} else if (sscanf(argv[i], "--hdfs=%s", &hdfsname) == 1) {
FLAGS_env = new leveldb::HdfsEnv(hdfsname);
} else if (sscanf(argv[i], "--target_file_size_base=%d%c",
@ -1070,6 +1087,12 @@ int main(int argc, char** argv) {
} else if (sscanf(argv[i], "--max_bytes_for_level_multiplier=%d%c",
&n, &junk) == 1) {
FLAGS_max_bytes_for_level_multiplier = n;
} else if (sscanf(argv[i],"--level0_stop_writes_trigger=%d%c",
&n, &junk) == 1) {
FLAGS_level0_stop_writes_trigger = n;
} else if (sscanf(argv[i],"--level0_slowdown_writes_trigger=%d%c",
&n, &junk) == 1) {
FLAGS_level0_slowdown_writes_trigger = n;
} else {
fprintf(stderr, "Invalid flag '%s'\n", argv[i]);
exit(1);