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From: | Anthony Liguori |
Subject: | Re: [Qemu-devel] [PATCH 0/4] qcow2: Improve cluster refcount update |
Date: | Fri, 07 Nov 2008 07:59:32 -0600 |
User-agent: | Thunderbird 2.0.0.17 (X11/20080925) |
Laurent Vivier wrote:
BTW, patch #1 is a clean-up (no change, only code move) and patch #2 doesn't align buffer, but try to minimise syscall (it improves performance with O_DSYNC too). Ignore patch #3 and #4 if you dislike them.
But how useful is #1 and #2 if the buffers aren't aligned and we're hitting the slow path?
Regards, Anthony Liguori
Regards, Laurent
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