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fio基础5
30% 4.blocksize并不统固定，其中4k占比10%，64K占比50%，32k占比40% 5.总大小为5G 6.50秒钟给出结果 [root@iZ116haf49sZ iotest]# time fio group_reporting -name=mytest mytest: (g=0): rw=randrw, bs=4K-64K/4K-64K/4K-64K, ioengine=psync, iodepth=4 ... fio
68460编辑于 2022-04-24 - 来自专栏技术杂记
fio基础8
With the above in mind, here follows the complete list of fio job parameters. This may be used to override the name printed by fio for this job. filename=str Fio normally makes up a filename based on the job name, thread number, and file number filename_format=str If sharing multiple files between jobs, it is usually necessary to have fio lockfile=str Fio defaults to not locking any files before it does IO to them.
81540编辑于 2022-04-24 - 来自专栏技术杂记
fio基础20
gtod_cpu=int Sometimes it'scheapertodedicateasinglethreadofexecutiontojustgettingthecurrenttime.Fio(anddatabases
44440编辑于 2022-04-24 - 来自专栏技术杂记
fio基础2
local/bin/fio [root@iZ116haf49sZ bin]# /usr/local/bin/fio -h fio-2.1.10 /usr/local/bin/fio [options] 21736 Nov 13 19:25 fio2gnuplot -rwxr-xr-x 1 root root 112136 Nov 13 19:25 fio-btrace2fio -rwxr-xr-x 1 root root 205830 Nov 13 19:25 fio-dedupe -rwxr-xr-x 1 root root 3994 Nov 13 19:25 fio_generate_plots genfio [root@iZ116haf49sZ fio]# file /usr/local/bin/* /usr/local/bin/fio: ELF 64-bit LSB : a /usr/bin/env python script text executable /usr/local/bin/fio-btrace2fio: ELF 64-bit LSB
64560编辑于 2022-04-24 - 来自专栏技术杂记
fio基础23
This value can be in milliseconds or microseconds, fio will choose the most appropriate base and This is the time from when IO leaves fio and when it gets completed. It is also possible to get fio to dump the current output while it is running, without terminating the To do that, send fio the USR1 signal. If fio sees this file, it will unlink it and dump the current output status.
68940编辑于 2022-04-24 - 来自专栏技术杂记
fio基础11
falloc IO engine that does regular fallocate to simulate data transfer as fio ioengine. HDFS, and engine will randomly pick a file out of those files based on the offset generated by fio Keep an eye on the IO depth distribution in the fio output to verify that the achieved depth is as
94040编辑于 2022-04-24 - 来自专栏技术杂记
fio基础9
If not set, fio will use the full size of the given files or devices. If size=20% is given, fio will use 20% of the full size of the given files or devices. With this option, it is possible to define just the amount of IO that fio should do. Normally fio will operate within the size of a file. If this option is set, then fio will append to the file instead.
70150编辑于 2022-04-24 - 来自专栏技术杂记
fio基础16
Normally fio includes a header with some basic information and checksumming, but if this option If the data direction given is a read or random read, fio will assume that it should verify a previously verifysort=bool If set, fio will sort written verify blocks when it deems it faster to read them back verify_pattern=str If set, fio will fill the io buffers with this pattern. Fio defaults to filling with totally random bytes, but sometimes it'sinterestingtofillwithaknownpatternforioverificationpurposes.Dependingonthewidthofthepattern
58740编辑于 2022-04-24 - 来自专栏技术杂记
fio基础24
--------- For scripted usage where you typically want to generate tables or graphs of the results, fio Split up, the format is as follows: terse version, fio version, jobname, groupid, error READ status description Completion latency percentiles can be a grouping of up to 20 sets, so for the terse output fio For disk utilization, all disks used by fio are shown.
52720编辑于 2022-04-24 - 来自专栏技术杂记
fio基础26
If fio is run with --trigger-file=/tmp/trigger-file, then it will continually check for the existence : localbox$ fio --client=server --trigger-file=/tmp/my-trigger --trigger-remote="bash -c \"echo b > On localbox, we could then have run fio with a local trigger instead: localbox$ fio --client=server If that is set, fio will load the previously stored state. [root@iZ116haf49sZ fio]#
94140编辑于 2022-04-24 - 来自专栏云技术+云运维
fio与iometer
FIO是测试IOPS的非常好的工具，用来对硬件进行压力测试和验证，支持13种不同的I/O引擎，包括:sync,mmap, libaio, posixaio, SG v3, splice, null fio这个工具实在太强大了，列举一下他的NB之处吧 1）支持十几种存储引擎，可以自定义 2）自带做图工具，调用gnuplot做图 3）支持几乎所有的存储描述参数 4）大量对CPU，内存，进程/线程 io队列深度通常对不同的设备很敏感，那么如何用fio来探测出合理的值呢？ 可以通过配置文件来配置压力测试的方式，可以用选项 --debug=io来检测fio是否工作 [root@vmforDB05 tmp]# cat fio_test [global] bsrange= 一般平常测试都用FIO，参数多测的类型丰富也比较准确。 本文转载自网络
4.4K30发布于 2019-10-29 - 来自专栏技术杂记
fio基础
前言 fio 是一款非常经典的开源磁盘io测试工具 fio is an I/O tool meant to be used both for benchmark and stress/hardware Fio is in wide use in many places, for both benchmarking, QA, and verification purposes. 这里介绍一下 fio 的基础操作，详细可以参考 官方文档 Tip: 当前版本 fio-2.2.11 ，访问官网可能得翻墙 ---- 概要 ---- 下载 [root@iZ116haf49sZ ~]# git clone git://git.kernel.dk/fio.git Initialized empty Git repository in /root/fio/.git/ remote: Counting [root@iZ116haf49sZ ~]# ls fio [root@iZ116haf49sZ ~]# [root@iZ116haf49sZ ~]# cd fio/ [root@iZ116haf49sZ
94250编辑于 2022-04-24 - 来自专栏技术杂记
fio基础4
基本io benchmark [root@iZ116haf49sZ iotest]# fio -filename=/tmp/iotest/test -direct=1 -iodepth 1 -thread group_reporting -name=mytest mytest: (g=0): rw=randrw, bs=16K-16K/16K-16K/16K-16K, ioengine=psync, iodepth=1 ... fio
49130编辑于 2022-04-24 - 来自专栏技术杂记
fio基础7
--bs=32k --direct=0 --size=64m --numjobs=4When fio is utilized as a basis ofany reasonably large test test filesize=1m include glob-include.fio [test] rw=randread bs=4k time_based=1 runtime=10 include test-include.fio ; -- end job file including.fio -- ; -- start job file glob-include.fio -- thread=1 group_reporting =1 ; -- end job file glob-include.fio -- ; -- start job file test-include.fio -- ioengine=libaio iodepth invocation and job file: $ SIZE=64m NUMJOBS=4 fio jobfile.fio ; -- start job file -- [random-writers
62120编辑于 2022-04-24 - 来自专栏技术杂记
fio基础1
安装 [root@iZ116haf49sZ fio]# less README [root@iZ116haf49sZ fio]# . 0 [root@iZ116haf49sZ fio]# make FIO_VERSION = fio-2.2.11-15-g236d CC gettime.o CC ioengines.o LINK fio CC t/log.o CC t/genzipf.o LINK t/fio-genzipf CC t/btrace2fio.o LINK t/fio-btrace2fio fio-btrace2fio t/fio-dedupe . /tools/fio_generate_plots ./tools/plot/fio2gnuplot .
72840编辑于 2022-04-24 - 来自专栏技术杂记
fio基础21
Theallowedvaluesare:noneExitonanyIOorverifyerrors.readContinueonreaderrors,exitonallothers.writeContinueonwriteerrors,exitonallothers.ioContinueonanyIOerror,exitonallothers.verifyContinueonverifyerrors,exitonallothers.allContinueonallerrors.0Backward-compatiblealiasfor'none'.1Backward-compatiblealiasfor'all'.ignore_error=strSometimesyouwanttoignoresomeerrorsduringtestinthatcaseyoucanspecifyerrorlistforeacherrortype.ignore_error=READ_ERR_LIST,WRITE_ERR_LIST,VERIFY_ERR_LISTerrorsforgivenerrortypeisseparatedwith':'.Errormaybesymbol('ENOSPC','ENOMEM')orinteger.Example:ignore_error=EAGAIN,ENOSPC:122ThisoptionwillignoreEAGAINfromREAD,andENOSPCand122(EDQUOT)fromWRITE.error_dump=boolIfsetdumpeveryerrorevenifitisnonfatal,truebydefault.Ifdisabledonlyfatalerrorwillbedumpedcgroup=strAddjobtothiscontrolgroup.Ifitdoesn't exist, it will be created. The system must have a mounted cgroup blkio mount point for this to work. If your system doesn'thaveitmounted,youcandosowith:#mount-tcgroup-oblkionone/cgroupcgroup_weight=intSettheweightofthecgrouptothisvalue.Seethedocumentationthatcomeswiththekernel,allowedvaluesareintherangeof100..1000.cgroup_nodelete=boolNormallyfiowilldeletethecgroupsithascreatedafterthejobcompletion.Tooverridethisbehaviorandtoleavecgroupsaroundafterthejobcompletion,setcgroup_nodelete=1.Thiscanbeusefulifonewantstoinspectvariouscgroupfilesafterjobcompletion.Default:falseuid=intInsteadofrunningastheinvokinguser,settheuserIDtothisvaluebeforethethread/processdoesanywork.gid=intSetgroupID,seeuid.flow_id=intTheIDoftheflow.Ifnotspecified,itdefaultstobeingaglobalflow.Seeflow.flow=intWeightintoken-basedflowcontrol.Ifthisvalueisused,thenthereisa'flow counter'whichisusedtoregulatetheproportionofactivitybetweentwoormorejobs.fioattemptstokeepthisflowcounternearzero.The'flow'parameterstandsforhowmuchshouldbeaddedorsubtractedtotheflowcounteroneachiterationofthemainI/Oloop.Thatis,ifonejobhasflow=8andanotherjobhasflow=-1,thentherewillbearoughly1:8ratioinhowmuchonerunsvstheother.flow_watermark=intThemaximumvaluethattheabsolute
30640编辑于 2022-04-24 - 来自专栏技术杂记
fio基础19
replay_no_stall=intWhenreplayingI/Owithread_iologthedefaultbehavioristoattempttorespectthetimestampswithinthelogandreplaythemwiththeappropriatedelaybetweenIOPS.Bysettingthisvariablefiowillnotrespectthetimestampsandattempttoreplaythemasfastaspossiblewhilestillrespectingordering.TheresultisthesameI/Opatterntoagivendevice,butdifferenttimings.replay_redirect=strWhilereplayingI/Opatternsusingread_iologthedefaultbehavioristoreplaytheIOPSontothemajor/minordevicethateachIOPwasrecordedfrom.Thisissometimesundesirablebecauseonadifferentmachinethosemajor/minornumberscanmaptoadifferentdevice.Changinghardwareonthesamesystemcanalsoresultinadifferentmajor/minormapping.Replay_redirectcausesallIOPStobereplayedontothesinglespecifieddeviceregardlessofthedeviceitwasrecordedfrom.i.e.replay_redirect=/dev/sdcwouldcauseallIOintheblktracetobereplayedonto/dev/sdc.Thismeansmultipledeviceswillbereplayedontoasingle,ifthetracecontainsmultipledevices.Ifyouwantmultipledevicestobereplayedconcurrentlytomultipleredirecteddevicesyoumustblkparseyourtraceintoseparatetracesandreplaythemwithindependentfioinvocations.Unfortuantelythisalsobreaksthestricttimeorderingbetweenmultipledeviceaccesses.replay_align=intForcealignmentofIOoffsetsandlengthsinatracetothispowerof2value.replay_scale=intScalesectoroffsetsdownbythisfactorwhenreplayingtraces.per_job_logs=boolIfset,thisgeneratesbw/clat/iopslogwithperfileprivatefilenames.Ifnotset,jobswithidenticalnameswillsharethelogfilename.Default:true.write_bw_log=strIfgiven,writeabandwidthlogofthejobsinthisjobfile.Canbeusedtostoredataofthebandwidthofthejobsintheirlifetime.Theincludedfio_generate_plotsscriptusesgnuplottoturnthesetextfilesintonicegraphs.Seewrite_lat_logforbehaviourofgivenfilename.Forthisoption,thesuffixis_bw.x.log,wherexistheindexofthejob(1..N,whereNisthenumberofjobs).If'per_job_logs'isfalse,thenthefilenamewillnotincludethejobindex.write_lat_log=strSameaswrite_bw_log,exceptthatthisoptionstoresiosubmission,completion,andtotallatenciesinstead.Ifnofilenameisgivenwiththisoption,thedefaultfilenameof"jobname_typ
30460编辑于 2022-04-24 - 来自专栏技术杂记
fio基础25
This format is not supported in Fio versions => 1.20-rc3. 8.2 Trace file format v2 ---------------- -------- The second version of the trace file format was added in Fio version 1.17. The first line of the trace file has to be: fio version 2 iolog Following this can be lines in two When the write phase has completed, fio switches to reads and verifies everything it wrote. With verification triggers, fio supports dumping the current write state to local files.
44830编辑于 2022-04-24 - 来自专栏技术杂记
fio基础6
附： 下面是关于 fio 的详细用法与各参数解释，在源码包的 HOWTO 文档里 [root@iZ116haf49sZ fio]# cat HOWTO Table of contents ------ How fio works 3. Running fio 4. Job file format 5. Detailed list of parameters 6. Normal output 7. When run, fio parses this file and sets everything up as described. : $ fio job_file and it will start doing what the job_file tells it to do. For each --name option that fio sees, it will start a new job with that name.
62910编辑于 2022-04-24 - 来自专栏技术杂记
fio基础18
whichallowsfiotoreplayaworkloadcapturedbyblktrace.Seeblktraceforhowtocapturesuchloggingdata.Forblktracereplay,thefileneedstobeturnedintoablkparsebinarydatafilefirst(blkparse<device>-o/dev/null-dfile_for_fio.bin
52030编辑于 2022-04-24
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