块设备IO情况查询

最新推荐文章于 2024-04-12 09:06:13 发布

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最新推荐文章于 2024-04-12 09:06:13 发布

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文章标签： python

原文链接：https://my.oschina.net/redhands/blog/3008574

本文详细解析了Linux系统中块设备统计文件/sys/block/<dev>/stat的各项指标，包括读写请求、合并请求、扇区操作、等待时间等关键参数，深入理解Linux存储子系统的性能和状态。

2019独角兽企业重金招聘Python工程师标准>>>

Block layer statistics in /sys/block/<dev>/stat

Name            units         description
----            -----         -----------
read I/Os       requests      number of read I/Os processed
read merges     requests      number of read I/Os merged with in-queue I/O
read sectors    sectors       number of sectors read
read ticks      milliseconds  total wait time for read requests
write I/Os      requests      number of write I/Os processed
write merges    requests      number of write I/Os merged with in-queue I/O
write sectors   sectors       number of sectors written
write ticks     milliseconds  total wait time for write requests
in_flight       requests      number of I/Os currently in flight
io_ticks        milliseconds  total time this block device has been active
time_in_queue   milliseconds  total wait time for all requests
discard I/Os    requests      number of discard I/Os processed
discard merges  requests      number of discard I/Os merged with in-queue I/O
discard sectors sectors       number of sectors discarded
discard ticks   milliseconds  total wait time for discard requests

转载于:https://my.oschina.net/redhands/blog/3008574