rocksdb/tools/benchmark.sh

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#!/usr/bin/env bash
# REQUIRE: db_bench binary exists in the current directory
if [ $# -ne 1 ]; then
echo -n "./benchmark.sh [bulkload/fillseq/overwrite/filluniquerandom/"
echo "readrandom/readwhilewriting/readwhilemerging/updaterandom/"
echo "mergerandom/randomtransaction/compact]"
exit 0
fi
# Make it easier to run only the compaction test. Getting valid data requires
# a number of iterations and having an ability to run the test separately from
# rest of the benchmarks helps.
if [ "$COMPACTION_TEST" == "1" -a "$1" != "universal_compaction" ]; then
echo "Skipping $1 because it's not a compaction test."
exit 0
fi
# size constants
K=1024
M=$((1024 * K))
G=$((1024 * M))
if [ -z $DB_DIR ]; then
echo "DB_DIR is not defined"
exit 0
fi
if [ -z $WAL_DIR ]; then
echo "WAL_DIR is not defined"
exit 0
fi
output_dir=${OUTPUT_DIR:-/tmp/}
if [ ! -d $output_dir ]; then
mkdir -p $output_dir
fi
# all multithreaded tests run with sync=1 unless
# $DB_BENCH_NO_SYNC is defined
syncval="1"
if [ ! -z $DB_BENCH_NO_SYNC ]; then
echo "Turning sync off for all multithreaded tests"
syncval="0";
fi
num_threads=${NUM_THREADS:-16}
mb_written_per_sec=${MB_WRITE_PER_SEC:-0}
# Only for tests that do range scans
num_nexts_per_seek=${NUM_NEXTS_PER_SEEK:-10}
cache_size=${CACHE_SIZE:-$((1 * G))}
compression_max_dict_bytes=${COMPRESSION_MAX_DICT_BYTES:-0}
compression_type=${COMPRESSION_TYPE:-snappy}
duration=${DURATION:-0}
num_keys=${NUM_KEYS:-$((1 * G))}
key_size=${KEY_SIZE:-20}
value_size=${VALUE_SIZE:-400}
block_size=${BLOCK_SIZE:-8192}
const_params="
--db=$DB_DIR \
--wal_dir=$WAL_DIR \
\
--num=$num_keys \
--num_levels=6 \
--key_size=$key_size \
--value_size=$value_size \
--block_size=$block_size \
--cache_size=$cache_size \
--cache_numshardbits=6 \
--compression_max_dict_bytes=$compression_max_dict_bytes \
--compression_ratio=0.5 \
--compression_type=$compression_type \
--level_compaction_dynamic_level_bytes=true \
--bytes_per_sync=$((8 * M)) \
--cache_index_and_filter_blocks=0 \
--pin_l0_filter_and_index_blocks_in_cache=1 \
--benchmark_write_rate_limit=$(( 1024 * 1024 * $mb_written_per_sec )) \
\
--hard_rate_limit=3 \
--rate_limit_delay_max_milliseconds=1000000 \
--write_buffer_size=$((128 * M)) \
--target_file_size_base=$((128 * M)) \
--max_bytes_for_level_base=$((1 * G)) \
\
--verify_checksum=1 \
--delete_obsolete_files_period_micros=$((60 * M)) \
--max_bytes_for_level_multiplier=8 \
\
--statistics=0 \
--stats_per_interval=1 \
--stats_interval_seconds=60 \
--histogram=1 \
\
--memtablerep=skip_list \
--bloom_bits=10 \
--open_files=-1"
l0_config="
--level0_file_num_compaction_trigger=4 \
--level0_slowdown_writes_trigger=12 \
--level0_stop_writes_trigger=20"
if [ $duration -gt 0 ]; then
const_params="$const_params --duration=$duration"
fi
params_w="$const_params \
$l0_config \
--max_background_compactions=16 \
--max_write_buffer_number=8 \
--max_background_flushes=7"
params_bulkload="$const_params \
--max_background_compactions=16 \
--max_write_buffer_number=8 \
--max_background_flushes=7 \
--level0_file_num_compaction_trigger=$((10 * M)) \
--level0_slowdown_writes_trigger=$((10 * M)) \
--level0_stop_writes_trigger=$((10 * M))"
#
# Tune values for level and universal compaction.
# For universal compaction, these level0_* options mean total sorted of runs in
# LSM. In level-based compaction, it means number of L0 files.
#
params_level_compact="$const_params \
--max_background_flushes=4 \
--max_write_buffer_number=4 \
--level0_file_num_compaction_trigger=4 \
--level0_slowdown_writes_trigger=16 \
--level0_stop_writes_trigger=20"
params_univ_compact="$const_params \
--max_background_flushes=4 \
--max_write_buffer_number=4 \
--level0_file_num_compaction_trigger=8 \
--level0_slowdown_writes_trigger=16 \
--level0_stop_writes_trigger=20"
function summarize_result {
test_out=$1
test_name=$2
bench_name=$3
# Note that this function assumes that the benchmark executes long enough so
# that "Compaction Stats" is written to stdout at least once. If it won't
# happen then empty output from grep when searching for "Sum" will cause
# syntax errors.
uptime=$( grep ^Uptime\(secs $test_out | tail -1 | awk '{ printf "%.0f", $2 }' )
stall_time=$( grep "^Cumulative stall" $test_out | tail -1 | awk '{ print $3 }' )
stall_pct=$( grep "^Cumulative stall" $test_out| tail -1 | awk '{ print $5 }' )
ops_sec=$( grep ^${bench_name} $test_out | awk '{ print $5 }' )
mb_sec=$( grep ^${bench_name} $test_out | awk '{ print $7 }' )
lo_wgb=$( grep "^ L0" $test_out | tail -1 | awk '{ print $8 }' )
sum_wgb=$( grep "^ Sum" $test_out | tail -1 | awk '{ print $8 }' )
sum_size=$( grep "^ Sum" $test_out | tail -1 | awk '{ printf "%.1f", $3 / 1024.0 }' )
wamp=$( echo "scale=1; $sum_wgb / $lo_wgb" | bc )
wmb_ps=$( echo "scale=1; ( $sum_wgb * 1024.0 ) / $uptime" | bc )
usecs_op=$( grep ^${bench_name} $test_out | awk '{ printf "%.1f", $3 }' )
p50=$( grep "^Percentiles:" $test_out | tail -1 | awk '{ printf "%.1f", $3 }' )
p75=$( grep "^Percentiles:" $test_out | tail -1 | awk '{ printf "%.1f", $5 }' )
p99=$( grep "^Percentiles:" $test_out | tail -1 | awk '{ printf "%.0f", $7 }' )
p999=$( grep "^Percentiles:" $test_out | tail -1 | awk '{ printf "%.0f", $9 }' )
p9999=$( grep "^Percentiles:" $test_out | tail -1 | awk '{ printf "%.0f", $11 }' )
echo -e "$ops_sec\t$mb_sec\t$sum_size\t$lo_wgb\t$sum_wgb\t$wamp\t$wmb_ps\t$usecs_op\t$p50\t$p75\t$p99\t$p999\t$p9999\t$uptime\t$stall_time\t$stall_pct\t$test_name" \
>> $output_dir/report.txt
}
function run_bulkload {
# This runs with a vector memtable and the WAL disabled to load faster. It is still crash safe and the
# client can discover where to restart a load after a crash. I think this is a good way to load.
echo "Bulk loading $num_keys random keys"
cmd="./db_bench --benchmarks=fillrandom \
--use_existing_db=0 \
--disable_auto_compactions=1 \
--sync=0 \
$params_bulkload \
--threads=1 \
--memtablerep=vector \
--disable_wal=1 \
--seed=$( date +%s ) \
2>&1 | tee -a $output_dir/benchmark_bulkload_fillrandom.log"
echo $cmd | tee $output_dir/benchmark_bulkload_fillrandom.log
eval $cmd
summarize_result $output_dir/benchmark_bulkload_fillrandom.log bulkload fillrandom
echo "Compacting..."
cmd="./db_bench --benchmarks=compact \
--use_existing_db=1 \
--disable_auto_compactions=1 \
--sync=0 \
$params_w \
--threads=1 \
2>&1 | tee -a $output_dir/benchmark_bulkload_compact.log"
echo $cmd | tee $output_dir/benchmark_bulkload_compact.log
eval $cmd
}
#
# Parameter description:
#
# $1 - 1 if I/O statistics should be collected.
# $2 - compaction type to use (level=0, universal=1).
# $3 - number of subcompactions.
# $4 - number of maximum background compactions.
#
function run_manual_compaction_worker {
# This runs with a vector memtable and the WAL disabled to load faster.
# It is still crash safe and the client can discover where to restart a
# load after a crash. I think this is a good way to load.
echo "Bulk loading $num_keys random keys for manual compaction."
fillrandom_output_file=$output_dir/benchmark_man_compact_fillrandom_$3.log
man_compact_output_log=$output_dir/benchmark_man_compact_$3.log
if [ "$2" == "1" ]; then
extra_params=$params_univ_compact
else
extra_params=$params_level_compact
fi
# Make sure that fillrandom uses the same compaction options as compact.
cmd="./db_bench --benchmarks=fillrandom \
--use_existing_db=0 \
--disable_auto_compactions=0 \
--sync=0 \
$extra_params \
--threads=$num_threads \
--compaction_measure_io_stats=$1 \
--compaction_style=$2 \
--subcompactions=$3 \
--memtablerep=vector \
--disable_wal=1 \
--max_background_compactions=$4 \
--seed=$( date +%s ) \
2>&1 | tee -a $fillrandom_output_file"
echo $cmd | tee $fillrandom_output_file
eval $cmd
summarize_result $fillrandom_output_file man_compact_fillrandom_$3 fillrandom
echo "Compacting with $3 subcompactions specified ..."
# This is the part we're really interested in. Given that compact benchmark
# doesn't output regular statistics then we'll just use the time command to
# measure how long this step takes.
cmd="{ \
time ./db_bench --benchmarks=compact \
--use_existing_db=1 \
--disable_auto_compactions=0 \
--sync=0 \
$extra_params \
--threads=$num_threads \
--compaction_measure_io_stats=$1 \
--compaction_style=$2 \
--subcompactions=$3 \
--max_background_compactions=$4 \
;}
2>&1 | tee -a $man_compact_output_log"
echo $cmd | tee $man_compact_output_log
eval $cmd
# Can't use summarize_result here. One way to analyze the results is to run
# "grep real" on the resulting log files.
}
function run_univ_compaction {
# Always ask for I/O statistics to be measured.
io_stats=1
# Values: kCompactionStyleLevel = 0x0, kCompactionStyleUniversal = 0x1.
compaction_style=1
# Define a set of benchmarks.
subcompactions=(1 2 4 8 16)
max_background_compactions=(16 16 8 4 2)
i=0
total=${#subcompactions[@]}
# Execute a set of benchmarks to cover variety of scenarios.
while [ "$i" -lt "$total" ]
do
run_manual_compaction_worker $io_stats $compaction_style ${subcompactions[$i]} \
${max_background_compactions[$i]}
((i++))
done
}
function run_fillseq {
# This runs with a vector memtable. WAL can be either disabled or enabled
# depending on the input parameter (1 for disabled, 0 for enabled). The main
# benefit behind disabling WAL is to make loading faster. It is still crash
# safe and the client can discover where to restart a load after a crash. I
# think this is a good way to load.
# Make sure that we'll have unique names for all the files so that data won't
# be overwritten.
if [ $1 == 1 ]; then
log_file_name=$output_dir/benchmark_fillseq.wal_disabled.v${value_size}.log
test_name=fillseq.wal_disabled.v${value_size}
else
log_file_name=$output_dir/benchmark_fillseq.wal_enabled.v${value_size}.log
test_name=fillseq.wal_enabled.v${value_size}
fi
echo "Loading $num_keys keys sequentially"
cmd="./db_bench --benchmarks=fillseq \
--use_existing_db=0 \
--sync=0 \
$params_w \
--min_level_to_compress=0 \
--threads=1 \
--memtablerep=vector \
--disable_wal=$1 \
--seed=$( date +%s ) \
2>&1 | tee -a $log_file_name"
echo $cmd | tee $log_file_name
eval $cmd
# The constant "fillseq" which we pass to db_bench is the benchmark name.
summarize_result $log_file_name $test_name fillseq
}
function run_change {
operation=$1
echo "Do $num_keys random $operation"
out_name="benchmark_${operation}.t${num_threads}.s${syncval}.log"
cmd="./db_bench --benchmarks=$operation \
--use_existing_db=1 \
--sync=$syncval \
$params_w \
--threads=$num_threads \
--merge_operator=\"put\" \
--seed=$( date +%s ) \
2>&1 | tee -a $output_dir/${out_name}"
echo $cmd | tee $output_dir/${out_name}
eval $cmd
summarize_result $output_dir/${out_name} ${operation}.t${num_threads}.s${syncval} $operation
}
function run_filluniquerandom {
echo "Loading $num_keys unique keys randomly"
cmd="./db_bench --benchmarks=filluniquerandom \
--use_existing_db=0 \
--sync=0 \
$params_w \
--threads=1 \
--seed=$( date +%s ) \
2>&1 | tee -a $output_dir/benchmark_filluniquerandom.log"
echo $cmd | tee $output_dir/benchmark_filluniquerandom.log
eval $cmd
summarize_result $output_dir/benchmark_filluniquerandom.log filluniquerandom filluniquerandom
}
function run_readrandom {
echo "Reading $num_keys random keys"
out_name="benchmark_readrandom.t${num_threads}.log"
cmd="./db_bench --benchmarks=readrandom \
--use_existing_db=1 \
$params_w \
--threads=$num_threads \
--seed=$( date +%s ) \
2>&1 | tee -a $output_dir/${out_name}"
echo $cmd | tee $output_dir/${out_name}
eval $cmd
summarize_result $output_dir/${out_name} readrandom.t${num_threads} readrandom
}
function run_readwhile {
operation=$1
echo "Reading $num_keys random keys while $operation"
out_name="benchmark_readwhile${operation}.t${num_threads}.log"
cmd="./db_bench --benchmarks=readwhile${operation} \
--use_existing_db=1 \
--sync=$syncval \
$params_w \
--threads=$num_threads \
--merge_operator=\"put\" \
--seed=$( date +%s ) \
2>&1 | tee -a $output_dir/${out_name}"
echo $cmd | tee $output_dir/${out_name}
eval $cmd
summarize_result $output_dir/${out_name} readwhile${operation}.t${num_threads} readwhile${operation}
}
function run_rangewhile {
operation=$1
full_name=$2
reverse_arg=$3
out_name="benchmark_${full_name}.t${num_threads}.log"
echo "Range scan $num_keys random keys while ${operation} for reverse_iter=${reverse_arg}"
cmd="./db_bench --benchmarks=seekrandomwhile${operation} \
--use_existing_db=1 \
--sync=$syncval \
$params_w \
--threads=$num_threads \
--merge_operator=\"put\" \
--seek_nexts=$num_nexts_per_seek \
--reverse_iterator=$reverse_arg \
--seed=$( date +%s ) \
2>&1 | tee -a $output_dir/${out_name}"
echo $cmd | tee $output_dir/${out_name}
eval $cmd
summarize_result $output_dir/${out_name} ${full_name}.t${num_threads} seekrandomwhile${operation}
}
function run_range {
full_name=$1
reverse_arg=$2
out_name="benchmark_${full_name}.t${num_threads}.log"
echo "Range scan $num_keys random keys for reverse_iter=${reverse_arg}"
cmd="./db_bench --benchmarks=seekrandom \
--use_existing_db=1 \
$params_w \
--threads=$num_threads \
--seek_nexts=$num_nexts_per_seek \
--reverse_iterator=$reverse_arg \
--seed=$( date +%s ) \
2>&1 | tee -a $output_dir/${out_name}"
echo $cmd | tee $output_dir/${out_name}
eval $cmd
summarize_result $output_dir/${out_name} ${full_name}.t${num_threads} seekrandom
}
function run_randomtransaction {
echo "..."
cmd="./db_bench $params_r --benchmarks=randomtransaction \
--num=$num_keys \
--transaction_db \
--threads=5 \
--transaction_sets=5 \
2>&1 | tee $output_dir/benchmark_randomtransaction.log"
echo $cmd | tee $output_dir/benchmark_rangescanwhilewriting.log
eval $cmd
}
function now() {
echo `date +"%s"`
}
report="$output_dir/report.txt"
schedule="$output_dir/schedule.txt"
echo "===== Benchmark ====="
# Run!!!
IFS=',' read -a jobs <<< $1
for job in ${jobs[@]}; do
if [ $job != debug ]; then
echo "Start $job at `date`" | tee -a $schedule
fi
start=$(now)
if [ $job = bulkload ]; then
run_bulkload
elif [ $job = fillseq_disable_wal ]; then
run_fillseq 1
elif [ $job = fillseq_enable_wal ]; then
run_fillseq 0
elif [ $job = overwrite ]; then
run_change overwrite
elif [ $job = updaterandom ]; then
run_change updaterandom
elif [ $job = mergerandom ]; then
run_change mergerandom
elif [ $job = filluniquerandom ]; then
run_filluniquerandom
elif [ $job = readrandom ]; then
run_readrandom
elif [ $job = fwdrange ]; then
run_range $job false
elif [ $job = revrange ]; then
run_range $job true
elif [ $job = readwhilewriting ]; then
run_readwhile writing
elif [ $job = readwhilemerging ]; then
run_readwhile merging
elif [ $job = fwdrangewhilewriting ]; then
run_rangewhile writing $job false
elif [ $job = revrangewhilewriting ]; then
run_rangewhile writing $job true
elif [ $job = fwdrangewhilemerging ]; then
run_rangewhile merging $job false
elif [ $job = revrangewhilemerging ]; then
run_rangewhile merging $job true
elif [ $job = randomtransaction ]; then
run_randomtransaction
elif [ $job = universal_compaction ]; then
run_univ_compaction
elif [ $job = debug ]; then
num_keys=1000; # debug
echo "Setting num_keys to $num_keys"
else
echo "unknown job $job"
exit
fi
end=$(now)
if [ $job != debug ]; then
echo "Complete $job in $((end-start)) seconds" | tee -a $schedule
fi
echo -e "ops/sec\tmb/sec\tSize-GB\tL0_GB\tSum_GB\tW-Amp\tW-MB/s\tusec/op\tp50\tp75\tp99\tp99.9\tp99.99\tUptime\tStall-time\tStall%\tTest"
tail -1 $output_dir/report.txt
done