From: Avi Kivity <[email protected]>
To: Jens Axboe <[email protected]>, [email protected]
Subject: Re: IORING_OP_POLL_ADD slower than linux-aio IOCB_CMD_POLL
Date: Wed, 20 Apr 2022 14:55:47 +0300 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On 19/04/2022 22.58, Jens Axboe wrote:
>
>> I'll try it tomorrow (also the other patch).
> Thanks!
>
With the new kernel, I get
io_uring_setup(200, {flags=0, sq_thread_cpu=0, sq_thread_idle=0,
sq_entries=256, cq_entries=512,
features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|0x1800,
sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276,
dropped=272, array=8512}, cq_off={head=128, tail=192, ring_mask=260,
ring_entries=268, overflow=284, cqes=320, flags=280}}) = 7
mmap(NULL, 9536, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 7, 0) =
-1 EACCES (Permission denied)
next prev parent reply other threads:[~2022-04-20 11:56 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-19 11:07 IORING_OP_POLL_ADD slower than linux-aio IOCB_CMD_POLL Avi Kivity
2022-04-19 11:38 ` Jens Axboe
2022-04-19 11:57 ` Avi Kivity
2022-04-19 12:04 ` Jens Axboe
2022-04-19 12:21 ` Avi Kivity
2022-04-19 12:31 ` Jens Axboe
2022-04-19 15:21 ` Jens Axboe
2022-04-19 15:51 ` Avi Kivity
2022-04-19 17:14 ` Jens Axboe
2022-04-19 19:41 ` Avi Kivity
2022-04-19 19:58 ` Jens Axboe
2022-04-20 11:55 ` Avi Kivity [this message]
2022-04-20 12:09 ` Jens Axboe
2022-04-21 9:05 ` Avi Kivity
2022-06-15 10:12 ` Avi Kivity
2022-06-15 10:48 ` Pavel Begunkov
2022-06-15 11:04 ` Avi Kivity
2022-06-15 11:07 ` Avi Kivity
2022-06-15 11:38 ` Pavel Begunkov
2022-06-15 12:21 ` Jens Axboe
2022-06-15 13:43 ` Avi Kivity
2022-06-15 11:30 ` Pavel Begunkov
2022-06-15 11:36 ` Avi Kivity
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