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Benchmark for new preallocate filter.
Example usage:
./bench_prealloc.py ../../build/qemu-img \
ssd-ext4:/path/to/mount/point \
ssd-xfs:/path2 hdd-ext4:/path3 hdd-xfs:/path4
The benchmark shows performance improvement (or degradation) when use
new preallocate filter with qcow2 image.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201021145859.11201-22-vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
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