On 09/12/2020 16:53, Jens Axboe wrote:
> On 12/8/20 7:19 PM, Pavel Begunkov wrote:
>> The idea is to avoid copying, merging, etc. bvec from iterator to bio
>> in direct I/O and use the one we've already got. Hook it up for io_uring.
>> Had an eye on it for a long, and it also was brought up by Matt
On Wed, Dec 09, 2020 at 02:19:50AM +, Pavel Begunkov wrote:
> The idea is to avoid copying, merging, etc. bvec from iterator to bio
> in direct I/O and use the one we've already got. Hook it up for io_uring.
> Had an eye on it for a long, and it also was brought up by Matthew
> just recently. L
On 12/8/20 7:19 PM, Pavel Begunkov wrote:
> The idea is to avoid copying, merging, etc. bvec from iterator to bio
> in direct I/O and use the one we've already got. Hook it up for io_uring.
> Had an eye on it for a long, and it also was brought up by Matthew
> just recently. Let me know if I forgot
On 09/12/2020 06:50, Christoph Hellwig wrote:
> On Wed, Dec 09, 2020 at 02:19:50AM +, Pavel Begunkov wrote:
>> A benchmark got me 430KIOPS vs 540KIOPS, or +25% on bare metal. And perf
>> shows that bio_iov_iter_get_pages() was taking ~20%. The test is pretty
>> silly, but still imposing. I'll r
On Wed, Dec 09, 2020 at 02:19:50AM +, Pavel Begunkov wrote:
> A benchmark got me 430KIOPS vs 540KIOPS, or +25% on bare metal. And perf
> shows that bio_iov_iter_get_pages() was taking ~20%. The test is pretty
> silly, but still imposing. I'll redo it closer to reality for next
> iteration, anyw
The idea is to avoid copying, merging, etc. bvec from iterator to bio
in direct I/O and use the one we've already got. Hook it up for io_uring.
Had an eye on it for a long, and it also was brought up by Matthew
just recently. Let me know if I forgot or misplaced some tags.
A benchmark got me 430KI
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