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103 lines
2.6 KiB
103 lines
2.6 KiB
1 year ago
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#!/usr/bin/env bash
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#
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#(c) 2004-present, Facebook Inc. All rights reserved.
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#
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#see LICENSE file for more information on use/redistribution rights.
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#
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#
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#dbench_monitor: monitor db_bench process for violation of memory utilization
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#
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#default usage will monitor 'virtual memory size'. See below for standard options
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#passed to db_bench during this test.
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#
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# See also: ./pflag for the actual monitoring script that does the work
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#
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#NOTE:
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# You may end up with some /tmp/ files if db_bench OR
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# this script OR ./pflag was killed unceremoniously
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#
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# If you see the script taking a long time, trying "kill"
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# will usually cleanly exit.
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#
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#
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DIR=`dirname $0`
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LOG=/tmp/`basename $0`.$$
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DB_BENCH="$DIR/../db_bench";
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PFLAG=${DIR}/pflag
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usage() {
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cat <<HELP; exit
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Usage: $0 [-h]
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-h: prints this help message
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This program will run the db_bench script to monitor memory usage
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using the 'pflag' program. It launches db_bench with default settings
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for certain arguments. You can change the defaults passed to
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'db_bench' program, by setting the following environment
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variables:
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bs [block_size]
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ztype [compression_type]
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benches [benchmarks]
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reads [reads]
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threads [threads]
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cs [cache_size]
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vsize [value_size]
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comp [compression_ratio]
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num [num]
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See the code for more info
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HELP
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}
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[ ! -x ${DB_BENCH} ] && echo "WARNING: ${DB_BENCH} doesn't exist, abort!" && exit -1;
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[ "x$1" = "x-h" ] && usage;
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trap 'rm -f ${LOG}; kill ${PID}; echo "Interrupted, exiting";' 1 2 3 15
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touch $LOG;
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: ${bs:=16384}
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: ${ztype:=zlib}
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: ${benches:=readwhilewriting}
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: ${reads:=$((1*1024*1024))};
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: ${threads:=8}
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: ${vsize:=2000}
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: ${comp:=0.5}
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: ${num:=10000}
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: ${cs:=$((1*1024*1024*1024))};
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DEBUG=1 #Set to 0 to remove chattiness
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if [ "x$DEBUG" != "x" ]; then
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#
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#NOTE: under some circumstances, --use_existing_db may leave LOCK files under ${TMPDIR}/rocksdb/*
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#cleanup the dir and re-run
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#
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echo DEBUG: Will run $DB_BENCH --block_size=$bs --compression_type=$ztype --benchmarks="$benches" --reads="$reads" --threads="$threads" --cache_size=$cs --value_size=$vsize --compression_ratio=$comp --num=$num --use_existing_db
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fi
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$DB_BENCH --block_size=$bs --compression_type=$ztype --benchmarks="$benches" --reads="$reads" --threads="$threads" --cache_size=$cs --value_size=$vsize --compression_ratio=$comp --num=$num --use_existing_db >$LOG 2>&1 &
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if [ $? -ne 0 ]; then
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warn "WARNING: ${DB_BENCH} did not launch successfully! Abort!";
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exit;
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fi
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PID=$!
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#
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#Start the monitoring. Default is "vsz" monitoring for upto cache_size ($cs) value of virtual mem
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#You could also monitor RSS and CPUTIME (bsdtime). Try 'pflag -h' for how to do this
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#
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${PFLAG} -p $PID -v
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rm -f $LOG;
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