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# Date Author Comment
7299550b 04/19/2012 04:48 pm Kevin Wolf

qemu-iotests: Always filter cluster_size out in _make_test_img

Some image formats do have a cluster size, others don't, but there are
tests that work with both sets of images and currently we get failures
because the qemu-img create output doesn't mention the cluster size for...
dd0c35d6 02/23/2012 11:29 am Stefan Hajnoczi

qemu-iotests: Use zero-based offsets for IO patterns

The io_pattern style functions have the following loop:

for i in `seq 1 $count`; do
      echo ... $(( start + i * step )) ...
  done

Offsets are 1-based so start=1024, step=512, count=4 yields:
1536, 2048, 2560, 3072...
e9029212 02/22/2012 05:17 pm Kevin Wolf

qemu-iotests: test bdrv_load/save_vmstate

Signed-off-by: Kevin Wolf <>
Signed-off-by: Christoph Hellwig <>
8fc1024c 02/22/2012 05:17 pm Kevin Wolf

qemu-iotests: align test requests according to cluster size

Change the io_test and io_test2 functions to take the cluster size of the image
and the number of test requests to issue. Tests are changed to specify a
cluster size (usually 4k), but expected test results stay the same for now...
ac5e2b20 02/22/2012 05:17 pm Kevin Wolf

qemu-iotests: test larger clusters sizes on qcow2

This patch adds test case 023 which tests some more cluster sizes. For
anythinger larger than 4k clusters we can't use requests that are l2_size or
more (128k for 1k clusters, 2 MB for 4k clusters, 512 MB for 64k clusters)....