From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41830) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WBiuG-0004dL-Fq for qemu-devel@nongnu.org; Fri, 07 Feb 2014 05:43:41 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WBiuA-00067A-RS for qemu-devel@nongnu.org; Fri, 07 Feb 2014 05:43:36 -0500 Received: from mx1.redhat.com ([209.132.183.28]:5924) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WBiuA-00066V-IO for qemu-devel@nongnu.org; Fri, 07 Feb 2014 05:43:30 -0500 From: Fam Zheng Date: Fri, 7 Feb 2014 18:43:28 +0800 Message-Id: <1391769813-15437-1-git-send-email-famz@redhat.com> Subject: [Qemu-devel] [PATCH v2 0/5] qemu-iotests: Test case for IO throttling List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Kevin Wolf , =?UTF-8?q?Beno=C3=AEt=20Canet?= , Stefan Hajnoczi , pbonzini@redhat.com This series adds iotest case for IO throttling. There is a change in qemu-io sub-commands "aio_read" and "aio_write", which makes the aio requests accounted and the statistics reflected in blockstats. Note that IO throttling implementation allows overcommiting of requests, so the actual IO happened in a time unit may be a bit larger than given limits. In the test case, the stats numbers are compared against 110%, to make room for such flexibility in order to improve determinism. v2: [01/05] qemu-io: Account IO by aio_read and aio_write Account unconditionally. (Paolo) [02/05] qtest: Add scripts/qtest/qtest.py New. [03/05] qemu-iotests: Add VM method qtest() to iotests.py Utilize qtests.py [04/05] qemu-iotests: Allow caller to disable underscore convertion for qmp Fix commit spelling. (Eric) [05/05] qemu-iotests: Add 080 for IO throttling Add assertion on ending blockstats. Spell fix. (Stefan) Change bps limits to 1024. (Stefan) Remove commented line. (Stefan) Add comment on overriding "bps_max" and "iops_max". (Stefan) Reduce amount of requests issued with qemu-io cmd. (Stefan) Change "<" to "<=" in check_limits, it's safer for burst. Fam Zheng (5): qemu-io: Account IO by aio_read and aio_write qtest: Add scripts/qtest/qtest.py qemu-iotests: Add VM method qtest() to iotests.py qemu-iotests: Allow caller to disable underscore convertion for qmp qemu-iotests: Add 080 for IO throttling qemu-io-cmds.c | 10 +++ scripts/qtest | 5 -- scripts/qtest/qtest.py | 78 +++++++++++++++++++ tests/qemu-iotests/080 | 172 ++++++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/080.out | 5 ++ tests/qemu-iotests/group | 1 + tests/qemu-iotests/iotests.py | 27 ++++++- 7 files changed, 289 insertions(+), 9 deletions(-) delete mode 100755 scripts/qtest create mode 100644 scripts/qtest/qtest.py create mode 100755 tests/qemu-iotests/080 create mode 100644 tests/qemu-iotests/080.out -- 1.8.5.4