fio 2.1.4 发布了，改进记录包括：
Adds JSON output for client/server.
A fix for Windows build breakage in the previous release.
A fix for ioengine specific options.
Adds support for O_ATOMIC atomic writes on Linux.
A failsafe check for realloc() failure during logging.
A fix for a Solaris thread problem.
Various man page and documentation updates.
A fix for a crash on PowerPC without the mfspr instruction
fio 是一个 I/O 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, network, syslet, guasi, solarisaio 等等, I/O priorities (for newer Linux kernels), rate I/O, forked or threaded jobs, 等等。
项目主页：http://git.kernel.dk/?p=fio.git;a=summary
来自:开源中国社区
