Messages in this thread | | | Date | Mon, 8 May 2006 14:19:52 -0700 | From | Andrew Morton <> | Subject | Re: [Patch 2/8] Sync block I/O and swapin delay collection |
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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?
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