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performance-metrics: Set image_type=raw for block I/O test image

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Without explicit image_type fio first sequential write hits
sector 0 and gets VIRTIO_BLK_S_IOERR. fio then hangs, causing
block_write_MiBps and all other write tests using
BLK_IO_TEST_IMG to time out.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
This commit is contained in:
Anatol Belski
2026-03-11 23:02:31 +01:00
committed by Rob Bradford
parent c0a81bc903
commit 766f4206c9
1 changed files with 2 additions and 0 deletions
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performance-metrics/src/performance_tests.rs
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@@ -442,6 +442,8 @@ pub fn performance_block_io(control: &PerformanceTestControl) -> f64 {
format!("path={test_file},queue_size={queue_size},num_queues={num_queues}");
if test_file == OVERLAY_WITH_QCOW2_BACKING || test_file == OVERLAY_WITH_RAW_BACKING {
test_disk_arg.push_str(",image_type=qcow2,backing_files=on");
} else if test_file == BLK_IO_TEST_IMG {
test_disk_arg.push_str(",image_type=raw");
}
let mut child = GuestCommand::new(&guest)