Messages in this thread | | | Date | Tue, 19 Dec 2023 12:59:29 +0100 | Subject | Re: [PATCH v6 6/6] nvme: repack struct nvme_ns_head | From | Hannes Reinecke <> |
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On 12/18/23 17:59, Daniel Wagner wrote: > ns_id, lba_shift and ms are always accessed for every read/write I/O in > nvme_setup_rw. By grouping these variables into one cacheline we can > safe some cycles. > > 4k sequential reads: > > baseline patched > Bandwidth: 1620 1634 > IOPs 66345579 66910939 > > Reviewed-by: Christoph Hellwig <hch@lst.de> > Reviewed-by: Sagi Grimberg <sagi@grimberg.me> > Signed-off-by: Daniel Wagner <dwagner@suse.de> > --- > drivers/nvme/host/nvme.h | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > Reviewed-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes -- Dr. Hannes Reinecke Kernel Storage Architect hare@suse.de +49 911 74053 688 SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg HRB 36809 (AG Nürnberg), GF: Ivo Totev, Andrew McDonald, Werner Knoblich
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