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From: | Fam Zheng |
Subject: | Re: [Qemu-block] [Qemu-devel] [PATCH v6] migration/block: use blk_pwrite_zeroes for each zero cluster |
Date: | Mon, 24 Apr 2017 20:19:33 +0800 |
User-agent: | Mutt/1.8.0 (2017-02-23) |
On Mon, 04/24 20:09, Fam Zheng wrote: > It's a separate problem. To be specific: 1) there is an option "overlap-check" that one can use to disable the costly metadata check; 2) qcow2 with cluster_size = 512 is probably too uncommon to be optimized for. Both are irrelevant to why and how this patch can be improved, IMO. Fam
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