Messages in this thread | | | Date | Tue, 21 Jul 2015 06:02:46 -0700 | From | Christoph Hellwig <> | Subject | Re: [patch] Revert "block: remove artifical max_hw_sectors cap" |
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On Mon, Jul 20, 2015 at 03:17:07PM -0400, Jeff Moyer wrote: > For SAN storage, we've seen initial write and re-write performance drop > 25-50% across all I/O sizes. On locally attached storage, we've seen > regressions of 40% for all I/O types, but only for I/O sizes larger than > 1MB.
Workload, and hardare please. An only mainline numbers, not some old hacked vendor kernel, please.
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