Messages in this thread | | | Date | Tue, 9 May 2006 09:23:20 +0530 | From | Balbir Singh <> | Subject | Re: [Patch 2/8] Sync block I/O and swapin delay collection |
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On Mon, May 08, 2006 at 02:19:52PM -0700, Andrew Morton wrote: > Balbir Singh <balbir@in.ibm.com> wrote: > > > > @@ -550,6 +550,12 @@ struct task_delay_info { > > * Atomicity of updates to XXX_delay, XXX_count protected by > > * single lock above (split into XXX_lock if contention is an issue). > > */ > > + > > + struct timespec blkio_start, blkio_end; /* Shared by blkio, swapin */ > > + u64 blkio_delay; /* wait for sync block io completion */ > > + u64 swapin_delay; /* wait for swapin block io completion */ > > + u32 blkio_count; > > + u32 swapin_count; > > These fields are a bit mystifying. > > In what units are blkio_delay and swapin_delay? > > What is the meaning behind blkio_count and swapin_count? > > Better comments needed, please.
Will add more detailed comments and send them as updates.
Thanks, Balbir Singh, Linux Technology Center, IBM Software Labs - 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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