Messages in this thread | | | Date | Fri, 11 Jan 2008 17:58:47 +0000 | From | Pavel Machek <> | Subject | Re: [RFC][PATCH] per-uid/gid I/O throttling (was Re: [RFC][PATCH] per-task I/O throttling) |
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On Tue 2008-01-15 17:49:36, Andrea Righi wrote: > Allow to limit the I/O bandwidth for specific uid(s) or gid(s) imposing > additional delays on those processes that exceed the limits defined in a > configfs tree. > > Examples: > > Limit the I/O bandwidth for user www-data (UID 33) to 4MB/s: > > root@linux:/config/io-throttle# mkdir uid:33 > root@linux:/config/io-throttle# cd uid:33/ > root@linux:/config/io-throttle/uid:33# cat io-rate > io-rate: 0 KiB/sec > requested: 0 KiB > last_request: 0 jiffies > delta: 388202 jiffies > root@linux:/config/io-throttle/uid:33# echo 4096 > io-rate > root@linux:/config/io-throttle/uid:33# cat io-rate > io-rate: 4096 KiB/sec > requested: 0 KiB > last_request: 389271 jiffies > delta: 91 jiffies > > Limit the I/O bandwidth of group backup (GID 34) to 512KB/s:
Maybe ionice from cfq should be improved, instead? -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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