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Bug
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Resolution: Not a Bug
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Undefined
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None
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rhel-9.5
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None
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Yes
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Critical
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Regression
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sst_virtualization_storage
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ssg_virtualization
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None
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False
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-
None
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None
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None
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None
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None
What were you trying to do that didn't work?
Performance Degradation between qemu 9.0.0-6.el9 and 8.2.0-11.el9_4.4, expecailly for write/randwrite with 4k block size, and randread with 64k block size + 1 iodepth + 16 iothreads
Please provide the package NVR for which bug is seen:
qemu-kvm-core-9.0.0-6.el9.x86_64
kernel-5.14.0-427.24.1.el9_4.x86_64
How reproducible:
100%
Steps to reproduce
Regression test of fio between qemu 9.0.0-6.el9 and 8.2.0-11.el9_4.4.
Expected results
No performance degradation or performance improved, but not degradation
Actual results
Performance degradated, and check http://kvm-perf.hosts.qa.psi.pek2.redhat.com/results/regression/9.5.0_qemu9.0.0-6_kernel5.14.0-427.24.1/nvme/raw.virtio_blk.*.x86_64.html for detailed info please.
