(sync、mmap、libaio、posixaio、SG v3、splice、null、network、 syslet、guasi、solarisaio，以及更多)， I/O 优先级（针对较新的 Linux...它支持 Linux 、FreeBSD 、NetBSD、 OpenBSD、 OS X、 OpenSolaris、 AIX、 HP-UX、 Android 以及 Windows。...我们将完整的进行安装和 Fio 的使用。 在 Debian 系统安装 Fio 对于 Debian 来说， Fio 已经在主仓库内。我们可以很容易的使用 apt-get 的包管理器安装。...现在，我们通过在 /opt 目录下切换到 Fio 的源代码目录，执行编译和安装操作了，命令如下： # cd /opt/fio # ..../configure # make # make install 使用 Fio 进行磁盘性能测试 现在 Fio 已经安装到了你的系统中，我们一起看看如何使用 Fio 做磁盘的随机写、读和读写测试。
专业的测试磁盘IO性能的软件： 1、fio 【推荐使用】 2、iometer fio的使用： 参考博客： http://lilinji.blog.51cto.com/5441000/1569623 https...://linux.die.net/man/1/fio http://elf8848.iteye.com/blog/2168876 【讲的比较好】 注意，我先使用yum安装的fio，测试时候报错，建议使用最新版的...fio工具编译安装。...tar xf fio-2.1.4.tar.gz cd fio-2.1.4 ....rwmixwrite=30 在混合读写的模式下，写占30% group_reporting 关于显示结果的，汇总每个进程的信息。
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
Only supported on Linux. Note, this option may change going forward....If not set, fio will use 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.
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...This may happen on Linux when using libaio and not setting direct=1, since buffered IO is not async...Keep an eye on the IO depth distribution in the fio output to verify that the achieved depth is as
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.
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.
gtod_cpu=int Sometimes it'scheapertodedicateasinglethreadofexecutiontojustgettingthecurrenttime.Fio(anddatabases
local/bin/fio [root@iZ116haf49sZ bin]# /usr/local/bin/fio -h fio-2.1.10 /usr/local/bin/fio [options]...executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, not...shared libs), for GNU/Linux 2.6.18, not stripped /usr/local/bin/fio-dedupe: ELF 64-bit LSB executable..., x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, not stripped...ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux
--------- 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.
异步的话就是用类似libaio这样的Linux native aio一次提交一批，然后等待一批的完成，减少交互的次数，会更有效率。...其中Iometer是控制程序，是图形界面，让你轻松的调节参数和显示测试结果，而Dynamo就是让测试盘产生压力测试的主程序了，用Iometer来控制Dynamo程序。...（会显示硬盘分区卷标和卷标名） ? 如果黄×××标上加了红色删除的线，则代表的是这块逻辑硬盘上没有iobw.tst文件。...（会显示硬盘的型号） 这里有一点需要注意，如果之前做过Iometer逻辑硬盘测试，并在这个分区里已经有iobw.tst文件，则在下次做测试前必须先删除，不然是不能改变这个之前测试生成的iobw.txt文件大小的...iometer 1.1.0 GA版本采用了Linux Kernel AIO方式，同时仅支持Direct IO。所以说，该版本也并非完美的异步IO解决方案应用。
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
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]#
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...posixaio, SG v3, splice, null, network, syslet, guasi, solarisaio, and more), I/O priorities (for newer Linux...It supports Linux, FreeBSD, NetBSD, OpenBSD, OS X, OpenSolaris, AIX, HP-UX, Android, and Windows....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...[root@iZ116haf49sZ ~]# ls fio [root@iZ116haf49sZ ~]# [root@iZ116haf49sZ ~]# cd fio/ [root@iZ116haf49sZ
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
replay_no_stall=intWhenreplayingI/Owithread_iologthedefaultbehavioristoattemptto...
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.
Theallowedvaluesare:noneExitonanyIOorverifyerrors.readContinueonreaderrors,exito...
/configure Operating system Linux CPU x86_64 Big endian...Static build no Wordsize 64 zlib yes Linux...__sync_fetch_and_add yes libverbs no rdmacm no Linux...fdatasync yes sync_file_range yes EXT4 move extent yes Linux...CC blktrace.o CC cgroup.o CC trim.o CC engines/sg.o CC engines/binject.o CC lib/linux-dev-lookup.o
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.
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