| To: | Dave Chinner <david@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH 03/60] xfs: plug directory buffer readahead |
| From: | Mark Tinguely <tinguely@xxxxxxx> |
| Date: | Thu, 20 Jun 2013 13:45:18 -0500 |
| Cc: | xfs@xxxxxxxxxxx |
| Delivered-to: | xfs@xxxxxxxxxxx |
| In-reply-to: | <1371617468-32559-4-git-send-email-david@xxxxxxxxxxxxx> |
| References: | <1371617468-32559-1-git-send-email-david@xxxxxxxxxxxxx> <1371617468-32559-4-git-send-email-david@xxxxxxxxxxxxx> |
| User-agent: | Mozilla/5.0 (X11; FreeBSD amd64; rv:9.0) Gecko/20120122 Thunderbird/9.0 |
On 06/18/13 23:50, Dave Chinner wrote: From: Dave Chinner<dchinner@xxxxxxxxxx> Similar to bulkstat inode chunk readahead, we need to plug directory data buffer readahead during getdents to ensure that we can merge adjacent readahead requests and sort out of order requests optimally before they are dispatched. This improves the readahead efficiency and reduces the IO load it generates as the IO patterns are significantly better for both contiguous and fragmented directories. Signed-off-by: Dave Chinner<dchinner@xxxxxxxxxx> --- Looks good. Reviewed-by: Mark Tinguely <tinguely@xxxxxxx> |
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