mirror of https://github.com/facebook/rocksdb.git
Add readrandom with both memtable and sst regression test
Summary: @MarkCallaghan's tests indicate that performance with 8k rows in memtable is much worse than empty memtable. I wanted to add a regression tests that measures this effect, so we could optimize it. However, current config shows 634461 QPS on my devbox. Mark, any idea why this is so much faster than your measurements? Test Plan: Ran the regression test. Reviewers: MarkCallaghan, dhruba, haobo Reviewed By: MarkCallaghan CC: leveldb, MarkCallaghan Differential Revision: https://reviews.facebook.net/D14511
This commit is contained in:
Igor Canadi
parent
a8029fdc75
commit
f5f5c645a8
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@ -26,15 +26,20 @@ function cleanup {
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}
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trap cleanup EXIT
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git_br=$(basename $GIT_BRANCH)
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if [ -z $GIT_BRANCH ]; then
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git_br=`git rev-parse --abbrev-ref HEAD`
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else
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git_br=$(basename $GIT_BRANCH)
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fi
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if [ $git_br == "master" ]; then
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git_br=""
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else
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git_br="."$git_br
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fi
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make clean
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OPT=-DNDEBUG make db_bench -j$(nproc)
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make release
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# measure fillseq + fill up the DB for overwrite benchmark
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./db_bench \
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@ -45,7 +50,8 @@ OPT=-DNDEBUG make db_bench -j$(nproc)
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--num=$NUM \
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--writes=$NUM \
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--cache_size=6442450944 \
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--cache_numshardbits=6 \
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--cache_numshardbits=4 \
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--table_cache_numshardbits=4 \
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--open_files=55000 \
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--statistics=1 \
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--histogram=1 \
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@ -60,9 +66,10 @@ OPT=-DNDEBUG make db_bench -j$(nproc)
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--use_existing_db=1 \
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--bloom_bits=10 \
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--num=$NUM \
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--writes=$((NUM / 2)) \
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--writes=$((NUM / 10)) \
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--cache_size=6442450944 \
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--cache_numshardbits=6 \
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--cache_numshardbits=4 \
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--table_cache_numshardbits=4 \
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--open_files=55000 \
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--statistics=1 \
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--histogram=1 \
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@ -80,7 +87,8 @@ OPT=-DNDEBUG make db_bench -j$(nproc)
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--num=$NUM \
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--writes=$NUM \
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--cache_size=6442450944 \
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--cache_numshardbits=6 \
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--cache_numshardbits=4 \
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--table_cache_numshardbits=4 \
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--open_files=55000 \
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--statistics=1 \
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--histogram=1 \
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@ -96,9 +104,10 @@ OPT=-DNDEBUG make db_bench -j$(nproc)
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--use_existing_db=1 \
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--bloom_bits=10 \
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--num=$NUM \
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--reads=$NUM \
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--reads=$((NUM / 5)) \
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--cache_size=6442450944 \
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--cache_numshardbits=8 \
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--cache_numshardbits=4 \
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--table_cache_numshardbits=4 \
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--open_files=55000 \
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--disable_seek_compaction=1 \
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--statistics=1 \
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@ -106,18 +115,19 @@ OPT=-DNDEBUG make db_bench -j$(nproc)
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--disable_data_sync=1 \
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--disable_wal=1 \
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--sync=0 \
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--threads=32 > ${STAT_FILE}.readrandom
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--threads=16 > ${STAT_FILE}.readrandom
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# measure readrandom with 300MB block cache
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# measure readrandom with 100MB block cache
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./db_bench \
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--benchmarks=readrandom \
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--db=$DATA_DIR \
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--use_existing_db=1 \
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--bloom_bits=10 \
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--num=$NUM \
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--reads=$NUM \
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--cache_size=314572800 \
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--cache_numshardbits=8 \
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--reads=$((NUM / 5)) \
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--cache_size=104857600 \
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--cache_numshardbits=4 \
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--table_cache_numshardbits=4 \
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--open_files=55000 \
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--disable_seek_compaction=1 \
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--statistics=1 \
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@ -125,7 +135,70 @@ OPT=-DNDEBUG make db_bench -j$(nproc)
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--disable_data_sync=1 \
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--disable_wal=1 \
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--sync=0 \
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--threads=32 > ${STAT_FILE}.readrandomsmallblockcache
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--threads=16 > ${STAT_FILE}.readrandomsmallblockcache
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# measure readrandom with 8k data in memtable
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./db_bench \
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--benchmarks=overwrite,readrandom \
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--db=$DATA_DIR \
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--use_existing_db=1 \
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--bloom_bits=10 \
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--num=$NUM \
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--reads=$((NUM / 5)) \
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--writes=512 \
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--cache_size=6442450944 \
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--cache_numshardbits=4 \
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--table_cache_numshardbits=4 \
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--write_buffer_size=1000000000 \
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--open_files=55000 \
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--disable_seek_compaction=1 \
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--statistics=1 \
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--histogram=1 \
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--disable_data_sync=1 \
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--disable_wal=1 \
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--sync=0 \
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--threads=16 > ${STAT_FILE}.readrandom_mem_sst
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# fill up the db for readrandom benchmark with filluniquerandom (1GB total size)
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./db_bench \
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--benchmarks=filluniquerandom \
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--db=$DATA_DIR \
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--use_existing_db=0 \
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--bloom_bits=10 \
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--num=$((NUM / 4)) \
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--writes=$((NUM / 4)) \
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--cache_size=6442450944 \
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--cache_numshardbits=4 \
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--table_cache_numshardbits=4 \
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--open_files=55000 \
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--statistics=1 \
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--histogram=1 \
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--disable_data_sync=1 \
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--disable_wal=1 \
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--sync=0 \
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--threads=1 > /dev/null
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# measure readrandom after load with filluniquerandom with 6GB block cache
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./db_bench \
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--benchmarks=readrandom \
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--db=$DATA_DIR \
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--use_existing_db=1 \
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--bloom_bits=10 \
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--num=$((NUM / 4)) \
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--reads=$((NUM / 4)) \
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--cache_size=6442450944 \
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--cache_numshardbits=4 \
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--table_cache_numshardbits=4 \
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--open_files=55000 \
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--disable_seek_compaction=1 \
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--disable_auto_compactions=1 \
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--statistics=1 \
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--histogram=1 \
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--disable_data_sync=1 \
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--disable_wal=1 \
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--sync=0 \
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--threads=16 > ${STAT_FILE}.readrandom_filluniquerandom
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# measure memtable performance -- none of the data gets flushed to disk
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./db_bench \
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@ -135,7 +208,8 @@ OPT=-DNDEBUG make db_bench -j$(nproc)
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--num=$((NUM / 10)) \
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--reads=$NUM \
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--cache_size=6442450944 \
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--cache_numshardbits=8 \
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--cache_numshardbits=4 \
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--table_cache_numshardbits=4 \
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--write_buffer_size=1000000000 \
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--open_files=55000 \
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--disable_seek_compaction=1 \
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@ -145,13 +219,19 @@ OPT=-DNDEBUG make db_bench -j$(nproc)
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--disable_wal=1 \
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--sync=0 \
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--value_size=10 \
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--threads=32 > ${STAT_FILE}.memtablefillreadrandom
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--threads=16 > ${STAT_FILE}.memtablefillreadrandom
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# send data to ods
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function send_to_ods {
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key="$1"
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value="$2"
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if [ -z $JENKINS_HOME ]; then
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# running on devbox, just print out the values
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echo $1 $2
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return
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fi
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if [ -z "$value" ];then
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echo >&2 "ERROR: Key $key doesn't have a value."
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return
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@ -180,5 +260,7 @@ send_benchmark_to_ods overwrite overwrite $STAT_FILE.overwrite
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send_benchmark_to_ods fillseq fillseq $STAT_FILE.fillseq
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send_benchmark_to_ods readrandom readrandom $STAT_FILE.readrandom
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send_benchmark_to_ods readrandom readrandom_smallblockcache $STAT_FILE.readrandomsmallblockcache
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send_benchmark_to_ods readrandom readrandom_memtable_sst $STAT_FILE.readrandom_mem_sst
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send_benchmark_to_ods readrandom readrandom_fillunique_random $STAT_FILE.readrandom_filluniquerandom
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send_benchmark_to_ods fillrandom memtablefillrandom $STAT_FILE.memtablefillreadrandom
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send_benchmark_to_ods readrandom memtablereadrandom $STAT_FILE.memtablefillreadrandom
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