From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55267) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YC2Y7-0006Fu-By for qemu-devel@nongnu.org; Fri, 16 Jan 2015 03:46:36 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YC2Y3-0002mb-8y for qemu-devel@nongnu.org; Fri, 16 Jan 2015 03:46:35 -0500 Received: from mx1.redhat.com ([209.132.183.28]:51498) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YC2Y3-0002mX-1W for qemu-devel@nongnu.org; Fri, 16 Jan 2015 03:46:31 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id t0G8kU6R019942 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Fri, 16 Jan 2015 03:46:30 -0500 From: Fam Zheng Date: Fri, 16 Jan 2015 16:46:18 +0800 Message-Id: <1421397983-28065-1-git-send-email-famz@redhat.com> Subject: [Qemu-devel] [PATCH v5 0/5] block: Add a qemu-iotests case for IO throttling List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Kevin Wolf , Stefan Hajnoczi v5: Rebase and improve the test. Please review again. Patch dependencies: This test depends on the qtest timer fix to run correctly. http://lists.gnu.org/archive/html/qemu-devel/2015-01/msg01865.html Also depends on the os check fix to run at all: http://lists.gnu.org/archive/html/qemu-devel/2015-01/msg01848.html Original cover letter --------------------- 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 with a 10% error tolerance, to make room for such flexibility in order to improve determinism. Fam Fam Zheng (5): qemu-io: Account IO by aio_read and aio_write qtest: Add scripts/qtest.py qemu-iotests: Add VM method qtest() to iotests.py qemu-iotests: Allow caller to disable underscore convertion for qmp qemu-iotests: Add 093 for IO throttling qemu-io-cmds.c | 11 +++++ scripts/qtest.py | 71 +++++++++++++++++++++++++++++ tests/qemu-iotests/093 | 103 ++++++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/093.out | 5 ++ tests/qemu-iotests/group | 1 + tests/qemu-iotests/iotests.py | 23 ++++++++-- 6 files changed, 210 insertions(+), 4 deletions(-) create mode 100644 scripts/qtest.py create mode 100755 tests/qemu-iotests/093 create mode 100644 tests/qemu-iotests/093.out -- 1.9.3