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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-01 21:35:14 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-06-01 21:35:14 +0200 |
| commit | 3e4c5a6261770bced301b5e74233e7866166ea5b (patch) | |
| tree | 9379fddaba693ef8a045da06efee8529baa5f6f4 /gitlab/issues_text/target_missing/host_missing/accel_TCG/693 | |
| parent | e5634e2806195bee44407853c4bf8776f7abfa4f (diff) | |
| download | qemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.tar.gz qemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.zip | |
clean up repository
Diffstat (limited to 'gitlab/issues_text/target_missing/host_missing/accel_TCG/693')
| -rw-r--r-- | gitlab/issues_text/target_missing/host_missing/accel_TCG/693 | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/gitlab/issues_text/target_missing/host_missing/accel_TCG/693 b/gitlab/issues_text/target_missing/host_missing/accel_TCG/693 deleted file mode 100644 index 9c2f7a7f9..000000000 --- a/gitlab/issues_text/target_missing/host_missing/accel_TCG/693 +++ /dev/null @@ -1,10 +0,0 @@ -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. |