Messages in this thread | | | Date | Mon, 18 Feb 2008 15:22:02 -0800 | From | Linda Walsh <> | Subject | Re: xfsaild causing 30+ wakeups/s on an idle system since 2.6.25-rcX |
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Not to look excessively dumb, but what's xfsaild?
xfs seems to be sprouting daemons at a more rapid pace these days...xfsbufd, xfssyncd, xfsdatad, xfslogd, xfs_mru_cache, and now xfsaild?
Not a complaint if it ups performance, but I do sorta wonder what all of them are for and why they are needed "now" but not for, say, kernels before 2.6.18 (arbitrary number picked out of hat).
Like bufd writes out buffers, logd writes/hands the log, datad? Isn't the data in buffers? mru_cache? -- isn't that handled by the linux block layer? Sorry...just a bit confused by the additions...
Are there any design docs (scribbles?) saying what these do and why they were added so I can just go read 'em myself? I'm sure they were added for good reason...just am curious more than anything.
Thanksd -lindad
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