[Qemu-devel] [PATCH v7 0/5] block: Add a qemu-iotests case for IO throttling

[Fam Zheng <famz@redhat.com>]

v7: Remove any "{iops,bps}_max" in 093 completely. (Max)

v6: Less resource demanding patch 5. (Max)
    Add rev-by of Max to other patches.

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        | 114 ++++++++++++++++++++++++++++++++++++++++++
 tests/qemu-iotests/093.out    |   5 ++
 tests/qemu-iotests/group      |   1 +
 tests/qemu-iotests/iotests.py |  23 +++++++--
 6 files changed, 221 insertions(+), 4 deletions(-)
 create mode 100644 scripts/qtest.py
 create mode 100755 tests/qemu-iotests/093
 create mode 100644 tests/qemu-iotests/093.out

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1.9.3