From: Jens Axboe <axboe@kernel.dk>
To: Christoph Hellwig <hch@lst.de>
Cc: Jeffle Xu <jefflexu@linux.alibaba.com>,
Ming Lei <ming.lei@redhat.com>,
Damien Le Moal <Damien.LeMoal@wdc.com>,
linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: switch block layer polling to a bio based model
Date: Mon, 26 Apr 2021 11:18:21 -0600 [thread overview]
Message-ID: <3bd0ff91-6613-8da5-810f-f23baa9d94c7@kernel.dk> (raw)
In-Reply-To: <20210426170516.GA1443@lst.de>
On 4/26/21 11:05 AM, Christoph Hellwig wrote:
> Can you test the force pushed update? This now avoids the RCU free
> for each bio and just uses SLAB_TYPESAFE_BY_RCU instead.
That looks better, perf is now back where it is without the series.
At least according to usual variation within boots.
--
Jens Axboe
prev parent reply other threads:[~2021-04-26 17:18 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-26 13:48 switch block layer polling to a bio based model Christoph Hellwig
2021-04-26 13:48 ` [PATCH 01/12] direct-io: remove blk_poll support Christoph Hellwig
2021-04-26 13:48 ` [PATCH 02/12] block: don't try to poll multi-bio I/Os in __blkdev_direct_IO Christoph Hellwig
2021-04-26 13:48 ` [PATCH 03/12] iomap: don't try to poll multi-bio I/Os in __iomap_dio_rw Christoph Hellwig
2021-04-26 13:48 ` [PATCH 04/12] blk-mq: factor out a "classic" poll helper Christoph Hellwig
2021-04-26 13:48 ` [PATCH 05/12] blk-mq: factor out a blk_qc_to_hctx helper Christoph Hellwig
2021-04-26 13:48 ` [PATCH 06/12] blk-mq: refactor hybrid polling Christoph Hellwig
2021-04-26 13:48 ` [PATCH 07/12] blk-mq: remove blk_qc_t_to_tag and blk_qc_t_is_internal Christoph Hellwig
2021-04-26 13:48 ` [PATCH 08/12] blk-mq: remove blk_qc_t_valid Christoph Hellwig
2021-04-26 13:48 ` [PATCH 09/12] block: rename REQ_HIPRI to REQ_POLLED Christoph Hellwig
2021-04-26 13:48 ` [PATCH 10/12] block: RCU free polled bios Christoph Hellwig
2021-04-26 13:48 ` [PATCH 11/12] block: define 'struct bvec_iter' as packed Christoph Hellwig
2021-04-26 13:48 ` [PATCH 12/12] block: switch polling to be bio based Christoph Hellwig
2021-04-26 15:27 ` Ming Lei
2021-04-26 14:57 ` switch block layer polling to a bio based model Jens Axboe
2021-04-26 15:06 ` Christoph Hellwig
2021-04-26 15:12 ` Jens Axboe
2021-04-26 16:15 ` Christoph Hellwig
2021-04-26 16:48 ` Jens Axboe
2021-04-26 17:05 ` Christoph Hellwig
2021-04-26 17:18 ` Jens Axboe [this message]
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