磁盘性能测试

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常见磁盘性能测试

Abstract

心血来潮，想测试一下阿里云的essd 和阿里云的本地ssd 性能， 不巧的是阿里云ecs 的存储， 有几种类型， essd， ssd 云盘， 高效云盘 和本地盘nvme 盘
最终测试下来确实nvme 盘的性能最好。

测试工具： 本文用sysbench 进行测试， 以前读书的时候使用过iometer 进行测试， sysbench 测试参数更多， 对iops 的测试效果更丰富， iometer 偏重吞吐量的测试。

介绍

参考之前的博文， 学会如何安装sysbench

准备工作

测试脚本

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#!/bin/bash

SYSBENCH_FILE_TOTAL_SIZE=16G
SYSBENCH_FILE_NUM=16
SYSBENCH_NUM_THREADS=16
FSYNC=off
SYSBENCH_BLOCK_SIZE=4096
SYSBENCH_TIME=60

#  --file-num=N                  number of files to create [128]
#  --file-block-size=N           block size to use in all IO operations [16384]
#  --file-total-size=SIZE        total size of files to create [2G]
#  --file-test-mode=STRING       test mode {seqwr, seqrewr, seqrd, rndrd, rndwr, rndrw}
#  --file-io-mode=STRING         file operations mode {sync,async,mmap} [sync]
#  --file-extra-flags=[LIST,...] list of additional flags to use to open files {sync,dsync,direct} []
#  --file-fsync-freq=N           do fsync() after this number of requests (0 - don't use fsync()) [100]
#  --file-fsync-all[=on|off]     do fsync() after each write operation [off]
#  --file-fsync-end[=on|off]     do fsync() at the end of test [on]
#  --file-fsync-mode=STRING      which method to use for synchronization {fsync, fdatasync} [fsync]
#  --file-merged-requests=N      merge at most this number of IO requests if possible (0 - don't merge) [0]
#  --file-rw-ratio=N             reads/writes ratio for combined test [1.5]

testmodes=(
    "seqwr" 
    "seqrewr" 
    "seqrd"
    "rndrd"
    "rndwr" 
    "rndrw"
    )
for testmode in "${testmodes[@]}"
do
    directios=(
    ""
    "sync"
    "direct"
    "dsync"
    )
    for directio in "${directios[@]}"
    do
        date
        echo 1 > /proc/sys/vm/drop_caches
        echo "begin to run $testmode   $directio"
        sysbench fileio  --file-num=$SYSBENCH_FILE_NUM --file-block-size=$SYSBENCH_BLOCK_SIZE --file-total-size=$SYSBENCH_FILE_TOTAL_SIZE --file-test-mode=$testmode --file-io-mode=sync --file-extra-flags=$directio --file-fsync-all=$FSYNC --file-fsync-mode=fsync --file-fsync-freq=0 --file-merged-requests=0 --threads=$SYSBENCH_NUM_THREADS prepare
        sysbench fileio --file-num=$SYSBENCH_FILE_NUM --file-block-size=$SYSBENCH_BLOCK_SIZE --file-total-size=$SYSBENCH_FILE_TOTAL_SIZE --file-test-mode=$testmode --file-io-mode=sync --file-extra-flags=$directio --file-fsync-all=$FSYNC --file-fsync-mode=fsync --file-fsync-freq=0 --file-merged-requests=0  --report-interval=10  --threads=$SYSBENCH_NUM_THREADS --time=$SYSBENCH_TIME run
        sysbench fileio  --file-num=$SYSBENCH_FILE_NUM --file-block-size=$SYSBENCH_BLOCK_SIZE --file-total-size=$SYSBENCH_FILE_TOTAL_SIZE --file-test-mode=$testmode --file-io-mode=sync --file-extra-flags=$directio --file-fsync-all=$FSYNC --file-fsync-mode=fsync --file-fsync-freq=0 --file-merged-requests=0   cleanup
        date
        esynccho "Finish one loop test"
    done
done

rm -rf test_file.*

echo "Finish all test"