| To: | Dave Chinner <david@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH] xfs: force background CIL push under sustained load |
| From: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
| Date: | Thu, 23 Sep 2010 06:43:27 -0400 |
| Cc: | xfs@xxxxxxxxxxx |
| In-reply-to: | <1285208863-31489-1-git-send-email-david@xxxxxxxxxxxxx> |
| References: | <1285208863-31489-1-git-send-email-david@xxxxxxxxxxxxx> |
| User-agent: | Mutt/1.5.20 (2009-08-17) |
On Thu, Sep 23, 2010 at 12:27:43PM +1000, Dave Chinner wrote: > The fix is to start blocking background pushes once the threshold has been > exceeded by 50%. This is still only 37.5% of log space at worst, so keeps us > well short of the limit a transaction must not exceed. Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx> > + * the background push threshold to 1/8th (12.5%) the size of the log, and > then start if you can please shorten this line a bit for the final version. |
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