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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
| commit | dee4dcba78baf712cab403d47d9db319ab7f95d6 (patch) | |
| tree | 418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/108/other/693 | |
| parent | 4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff) | |
| download | emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip | |
restructure results
Diffstat (limited to 'results/classifier/108/other/693')
| -rw-r--r-- | results/classifier/108/other/693 | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/results/classifier/108/other/693 b/results/classifier/108/other/693 deleted file mode 100644 index b819522b..00000000 --- a/results/classifier/108/other/693 +++ /dev/null @@ -1,25 +0,0 @@ -graphic: 0.891 -performance: 0.851 -boot: 0.627 -device: 0.626 -semantic: 0.507 -debug: 0.273 -network: 0.243 -PID: 0.232 -permissions: 0.214 -vnc: 0.171 -other: 0.105 -socket: 0.101 -files: 0.011 -KVM: 0.006 - -Qemu increased memory usage with TCG -Description of problem: -The issue is that instances that are supposed to use only a small amount of memory (like 256MB) suddenly use a much higher amount of RSS when running the accel=tcg, around 512MB in the above example. This was not happening with qemu-4.2 (on Ubuntu 20.04). This is also not happening when using accel=kvm instead. The issue has been first noticed on Debian 11 (Bullseye) with the versions above, but it is happening in the same way on Centos 8 Stream, Ubuntu 21.10 and a pre-release version of Ubuntu 22.04. It also also seen when testing with qemu-6.1 built from source. -Steps to reproduce: -1. Deploy devstack (https://opendev.org/openstack/devstack) with VIRT_TYPE=qemu on a VM -2. Start an instance with cirros image and a flavor allocating 256MB -3. Do a ps and see a RSS size of about 512MB being used after the instance has finished booting -4. Expected result (seen with qemu-4.2 or VIRT_TYPE=kvm): RSS stays < 256MB -Additional information: -I can try to find a smaller commandline for manual reproduction if needed. The above sample is generated by OpenStack Nova via libvirt. |
