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benchmark.sh
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benchmark.sh
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#!/bin/bash
# REQUIRE: db_bench binary exists in the current directory
if [ $# -ne 1 ]; then
echo -n "./benchmark.sh [bulkload/fillseq/overwrite/filluniquerandom/"
echo "readrandom/readwhilewriting/readwhilemerging/updaterandom/mergerandom]"
exit 0
fi
# size constants
K=1024
M=$((1024 * K))
G=$((1024 * M))
#SSD
#DB_DIR=/media/raven/Sistem/Users/Raven/Downloads
#WAL_DIR=/media/raven/Sistem/Users/Raven/Downloads
#HDD
DB_DIR=/home/raven/thesis/benchmark
WAL_DIR=/home/raven/thesis/benchmark
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}
# Only for *whilewriting, *whilemerging
writes_per_second=${WRITES_PER_SECOND:-$((10 * K))}
# Only for tests that do range scans
num_nexts_per_seek=${NUM_NEXTS_PER_SEEK:-10}
cache_size=${CACHE_SIZE:-$((1 * G))}
duration=${DURATION:-0}
num_keys=$((10 * M))
key_size=20
value_size=${VALUE_SIZE:-400}
block_size=${BLOCK_SIZE:-4096}
const_params="
--db=$DB_DIR \
--wal_dir=$WAL_DIR \
--disable_data_sync=0 \
\
--num=$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_type=zlib \
--min_level_to_compress=3 \
--compression_ratio=0.5 \
--level_compaction_dynamic_level_bytes=true \
--bytes_per_sync=$((2 * M)) \
\
--hard_rate_limit=3 \
--rate_limit_delay_max_milliseconds=1000000 \
--write_buffer_size=$((128 * M)) \
--max_write_buffer_number=8 \
--target_file_size_base=$((128 * M)) \
--max_bytes_for_level_base=$((1 * G)) \
\
--verify_checksum=1 \
--delete_obsolete_files_period_micros=$((60 * M)) \
--max_grandparent_overlap_factor=8 \
--max_bytes_for_level_multiplier=8 \
\
--statistics=1 \
--stats_per_interval=1 \
--stats_interval_seconds=60 \
--histogram=1 \
\
--memtablerep=skip_list \
--bloom_bits=10 \
--open_files=$((20 * K))"
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 $l0_config --max_background_compactions=16 --max_background_flushes=7"
params_bulkload="$const_params --max_background_compactions=16 --max_background_flushes=7 \
--level0_file_num_compaction_trigger=$((10 * M)) \
--level0_slowdown_writes_trigger=$((10 * M)) \
--level0_stop_writes_trigger=$((10 * M))"
function summarize_result {
test_out=$1
test_name=$2
bench_name=$3
uptime=$( 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 $8 }' )
wamp=$( 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 | awk '{ printf "%.1f", $3 }' )
p75=$( grep "^Percentiles:" $test_out | awk '{ printf "%.1f", $5 }' )
p99=$( grep "^Percentiles:" $test_out | awk '{ printf "%.0f", $7 }' )
p999=$( grep "^Percentiles:" $test_out | awk '{ printf "%.0f", $9 }' )
p9999=$( grep "^Percentiles:" $test_out | awk '{ printf "%.0f", $11 }' )
echo -e "$ops_sec\t$mb_sec\t$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
}
function run_fillseq {
# 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 "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 $output_dir/benchmark_fillseq.v${value_size}.log"
echo $cmd | tee $output_dir/benchmark_fillseq.v${value_size}.log
eval $cmd
summarize_result $output_dir/benchmark_fillseq.v${value_size}.log fillseq.v${value_size} 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 \
--writes_per_second=$writes_per_second \
--merge_operator=\"put\" \
--seed=$( 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 \
--writes_per_second=$writes_per_second \
--merge_operator=\"put\" \
--seek_nexts=$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 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 ]; then
run_fillseq
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 = 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\tL0_MB\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