最後更新: 2019-10-18

介紹

HomePage: https://github.com/axboe/fio

支持許多種不同的I/O引擎, 包括: mmap, sync ... libaio, rdma, posixaio ...

( 列出 engine: fio --enghelp )

(--enghelp=[ioengine[,command]])

engine

sync

Basic read(2) or write(2) I/O.

lseek(2) is used to position  the  I/O location.  

See fsync and fdata-sync for syncing write I/Os.

libaio

Linux native asynchronous I/O.

Note that Linux may only support queued behavior with non-buffered I/O
(set `direct=1' or `buffered=0')

(buffered=bool    # Default: 1; use buffered I/O. This is the opposite of the direct option.)

posixaio

POSIX  asynchronous  I/O  using  aio_read(3) and aio_write(3).

mmap  

File is memory mapped with mmap(2) and data copied to/from using memcpy(3)

最後更新: 2019-10-14

介紹

It allows simple packet aggregation into larger packets and compression of contents of packets.