From: Aarushi Mehta <mehta.aaru20@gmail.com>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
Maxim Levitsky <mlevitsk@redhat.com>,
Sergio Lopez <slp@redhat.com>,
qemu-block@nongnu.org, Markus Armbruster <armbru@redhat.com>,
Max Reitz <mreitz@redhat.com>,
saket.sinha89@gmail.com, Stefan Hajnoczi <stefanha@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>, Fam Zheng <fam@euphon.net>,
Stefan Hajnoczi <stefan@redhat.com>,
Julia Suvorova <jusual@mail.ru>,
Aarushi Mehta <mehta.aaru20@gmail.com>
Subject: [Qemu-devel] [PATCH v9 00/17] Add support for io_uring
Date: Fri, 2 Aug 2019 05:10:14 +0530 [thread overview]
Message-ID: <20190801234031.29561-1-mehta.aaru20@gmail.com> (raw)
This patch series adds support for the newly developed io_uring Linux AIO
interface. Linux io_uring is faster than Linux's AIO asynchronous I/O code,
offers efficient buffered asynchronous I/O support, the ability to do I/O
without performing a system call via polled I/O, and other efficiency enhancements.
Testing it requires a host kernel (5.1+) and the liburing library.
Use the option -drive aio=io_uring to enable it.
Benchmarks for the system at https://github.com/rooshm/benchmarks.
There is currently an -EIO output when guests are booted from io_uring on ext4,
the error is reported upstream.
https://lore.kernel.org/linux-block/20190723080701.GA3198@stefanha-x1.localdomain/
v9:
- adds sq_polling
- fixes leaks in fd_registration
v8:
- adds fd_registration
v7:
- completes io-tests options
- misc fixes
v6:
- add slow path for short-read
- hooks up fsync
- enables qemu-iotests with aio options
- adds bdrv_parse_aio
Aarushi Mehta (17):
configure: permit use of io_uring
qapi/block-core: add option for io_uring
block/block: add BDRV flag for io_uring
block/io_uring: implements interfaces for io_uring
stubs: add stubs for io_uring interface
util/async: add aio interfaces for io_uring
blockdev: adds bdrv_parse_aio to use io_uring
block/file-posix.c: extend to use io_uring
block: add trace events for io_uring
block/io_uring: adds userspace completion polling
qemu-io: adds option to use aio engine
qemu-img: adds option to use aio engine for benchmarking
qemu-nbd: adds option for aio engines
tests/qemu-iotests: enable testing with aio options
tests/qemu-iotests: use AIOMODE with various tests
block/io_uring: adds fd registration
block/io_uring: enable kernel submission polling
MAINTAINERS | 8 +
block.c | 22 ++
block/Makefile.objs | 3 +
block/file-posix.c | 99 ++++--
block/io_uring.c | 560 ++++++++++++++++++++++++++++++++++
block/trace-events | 13 +
blockdev.c | 12 +-
configure | 27 ++
include/block/aio.h | 16 +-
include/block/block.h | 2 +
include/block/raw-aio.h | 12 +
qapi/block-core.json | 4 +-
qemu-img-cmds.hx | 4 +-
qemu-img.c | 11 +-
qemu-img.texi | 5 +-
qemu-io.c | 25 +-
qemu-nbd.c | 12 +-
qemu-nbd.texi | 4 +-
stubs/Makefile.objs | 1 +
stubs/io_uring.c | 32 ++
tests/qemu-iotests/028 | 3 +-
tests/qemu-iotests/058 | 2 +-
tests/qemu-iotests/089 | 4 +-
tests/qemu-iotests/091 | 7 +-
tests/qemu-iotests/109 | 3 +-
tests/qemu-iotests/147 | 5 +-
tests/qemu-iotests/181 | 10 +-
tests/qemu-iotests/183 | 7 +-
tests/qemu-iotests/185 | 17 +-
tests/qemu-iotests/200 | 3 +-
tests/qemu-iotests/201 | 10 +-
tests/qemu-iotests/check | 15 +-
tests/qemu-iotests/common.rc | 14 +
tests/qemu-iotests/iotests.py | 9 +-
util/async.c | 36 +++
35 files changed, 938 insertions(+), 79 deletions(-)
create mode 100644 block/io_uring.c
create mode 100644 stubs/io_uring.c
--
2.21.0
next reply other threads:[~2019-08-01 23:42 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-01 23:40 Aarushi Mehta [this message]
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 01/17] configure: permit use of io_uring Aarushi Mehta
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 02/17] qapi/block-core: add option for io_uring Aarushi Mehta
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 03/17] block/block: add BDRV flag " Aarushi Mehta
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 04/17] block/io_uring: implements interfaces " Aarushi Mehta
2019-08-07 11:35 ` Julia Suvorova via Qemu-devel
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 05/17] stubs: add stubs for io_uring interface Aarushi Mehta
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 06/17] util/async: add aio interfaces for io_uring Aarushi Mehta
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 07/17] blockdev: adds bdrv_parse_aio to use io_uring Aarushi Mehta
2019-08-07 11:44 ` Julia Suvorova via Qemu-devel
2019-08-07 12:05 ` Aarushi Mehta
2019-08-07 12:49 ` Julia Suvorova via Qemu-devel
2019-10-04 15:06 ` Stefan Hajnoczi
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 08/17] block/file-posix.c: extend " Aarushi Mehta
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 09/17] block: add trace events for io_uring Aarushi Mehta
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 10/17] block/io_uring: adds userspace completion polling Aarushi Mehta
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 11/17] qemu-io: adds option to use aio engine Aarushi Mehta
2019-08-02 6:40 ` Stefan Hajnoczi
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 12/17] qemu-img: adds option to use aio engine for benchmarking Aarushi Mehta
2019-08-02 6:42 ` Stefan Hajnoczi
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 13/17] qemu-nbd: adds option for aio engines Aarushi Mehta
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 14/17] tests/qemu-iotests: enable testing with aio options Aarushi Mehta
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 15/17] tests/qemu-iotests: use AIOMODE with various tests Aarushi Mehta
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 16/17] block/io_uring: adds fd registration Aarushi Mehta
2019-08-02 8:03 ` Stefan Hajnoczi
2019-08-01 23:40 ` [Qemu-devel] [PATCH v9 17/17] block/io_uring: enable kernel submission polling Aarushi Mehta
2019-08-02 8:08 ` Stefan Hajnoczi
2019-08-05 8:29 ` Stefan Hajnoczi
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