[PATCHSET v5 0/6] Enable bio recycling for polled IO · Jens Axboe <axboe@kernel.dk> · 2021-08-12
[PATCH 1/6] bio: optimize initialization of a bio · Jens Axboe <axboe@kernel.dk> · 2021-08-12
Re: [PATCH 1/6] bio: optimize initialization of a bio · Christoph Hellwig <hch@infradead.org> · 2021-08-12
[PATCH 2/6] fs: add kiocb alloc cache flag · Jens Axboe <axboe@kernel.dk> · 2021-08-12
Re: [PATCH 2/6] fs: add kiocb alloc cache flag · Christoph Hellwig <hch@infradead.org> · 2021-08-12
[PATCH 4/6] block: clear BIO_PERCPU_CACHE flag if polling isn't supported · Jens Axboe <axboe@kernel.dk> · 2021-08-12
Re: [PATCH 4/6] block: clear BIO_PERCPU_CACHE flag if polling isn't supported · Christoph Hellwig <hch@infradead.org> · 2021-08-12
Re: [PATCH 4/6] block: clear BIO_PERCPU_CACHE flag if polling isn't supported · Keith Busch <kbusch@kernel.org> · 2021-08-12
Re: [PATCH 4/6] block: clear BIO_PERCPU_CACHE flag if polling isn't supported · Jens Axboe <axboe@kernel.dk> · 2021-08-12
Re: [PATCH 4/6] block: clear BIO_PERCPU_CACHE flag if polling isn't supported · Keith Busch <kbusch@kernel.org> · 2021-08-13
Re: [PATCH 4/6] block: clear BIO_PERCPU_CACHE flag if polling isn't supported · Jens Axboe <axboe@kernel.dk> · 2021-08-13
Re: [PATCH 4/6] block: clear BIO_PERCPU_CACHE flag if polling isn't supported · Keith Busch <kbusch@kernel.org> · 2021-08-13
Re: [PATCH 4/6] block: clear BIO_PERCPU_CACHE flag if polling isn't supported · Jens Axboe <axboe@kernel.dk> · 2021-08-13
[PATCH 3/6] bio: add allocation cache abstraction · Jens Axboe <axboe@kernel.dk> · 2021-08-12
Re: [PATCH 3/6] bio: add allocation cache abstraction · Christoph Hellwig <hch@infradead.org> · 2021-08-12
Re: [PATCH 3/6] bio: add allocation cache abstraction · Jens Axboe <axboe@kernel.dk> · 2021-08-12
[PATCH 5/6] io_uring: enable use of bio alloc cache · Jens Axboe <axboe@kernel.dk> · 2021-08-12
Re: [PATCH 5/6] io_uring: enable use of bio alloc cache · Christoph Hellwig <hch@infradead.org> · 2021-08-12
Re: [PATCH 5/6] io_uring: enable use of bio alloc cache · Jens Axboe <axboe@kernel.dk> · 2021-08-12
[PATCH 6/6] block: use the percpu bio cache in __blkdev_direct_IO · Jens Axboe <axboe@kernel.dk> · 2021-08-12

Re: [PATCH 5/6] io_uring: enable use of bio alloc cache

From: Christoph Hellwig <hch@infradead.org>
Date: 2021-08-12 16:40:24
Also in: io-uring

On Thu, Aug 12, 2021 at 09:41:48AM -0600, Jens Axboe wrote:

Mark polled IO as being safe for dipping into the bio allocation
cache, in case the targeted bio_set has it enabled.

This brings an IOPOLL gen2 Optane QD=128 workload from ~3.0M IOPS to
~3.3M IOPS.

Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>

Didn't the cover letter say 3.5M+ IOPS, though?

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