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fio 的全称是 flexible I/O tester,是常用的磁盘性能测试工具。fio 通过产生一系列的线程或进程来执行用户指定的特定类型 IO 操作。典型的用法是用户将需要模拟的 IO 负载写入到 job file 中。fio 支持多种 IO 引擎,通过 ioengine=io_uring,我们可以在 fio 中使用 io_uri
Fio is maintained by Jens Axboe <axboe@kernel.dkand Vincent Fu <vincentfu@gmail.com> - however, for reporting bugs please use the fio reflector or the GitHub page rather than email any of them directly. By using the public resources, others will be able to learn from the responses too....
dumpthecontentsofboththeoriginaldatablockandthedatablockwereadoffdisktofiles.Thisallowslateranalysistoinspectjustwhatkindofdatacorruptionoccurred.Offbydefault.verify_async=intFiowillnormallyverifyIOinlinefromthesubmittingthread.ThisoptiontakesanintegerdescribinghowmanyasyncoffloadthreadstocreateforIOverificationinstead,...
By using the public resources, others will be able to learn from the responses too. Chances are also good that other members will be able to help with your inquiry as well. Binary packages Debian: Starting with Debian "Squeeze", fio packages are part of the official Debian repository. ...
It will simply loop over the same workload as many times as the runtime allows. ramp_time=time If set, fio will run the specified workload for this amount of time before logging any performance numbers. Useful for letting performance settle before logging results, thus minimizing the runtime...
Then fio will open this local (to the server) job file instead of being passed one from the client. If you have many servers (example: 100 VMs/containers), you can input a pathname of a file containing host IPs/names as the parameter value for the --client option. For example, here...
It will simply loop over the same workload as many times as the runtime allows. startdelay=irange(int) Delay the start of job for the specified amount of time. Can be a single value or a range. When given as a range, each thread will choose a value randomly from within the range....
It's one of the many defined USBdevice classes. Every USB device is assigned a class, which defines what its general purpose is. There are loads of classes -- printers, hubs, speakers, and webcams to mention a few, but in this example we'll be emulating HID --Human Interface Device....
(Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have ...