Messages in this thread | | | Date | Wed, 29 Mar 2006 21:03:40 -0800 | From | Andrew Morton <> | Subject | Re: [Patch 2/8] Block I/O, swapin delays |
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Shailabh Nagar <nagar@watson.ibm.com> wrote: > > delayacct-blkio-swapin.patch > > Collect per-task block I/O delay statistics. > > Unlike earlier iterations of the delay accounting > patches, now delays are only collected for the actual > I/O waits rather than try and cover the delays seen in > I/O submission paths. > > Account separately for block I/O delays > incurred as a result of swapin page faults whose > frequency can be affected by the task/process' rss limit. > Hence swapin delays can act as feedback for rss limit changes > independent of I/O priority changes. > > .. > > +#define PF_SWAPIN 0x02000000 /* I am doing a swap in */ >
Is there really no sane alternative to doing it this way? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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