diff options
Diffstat (limited to 'gitlab/issues_text/target_missing/host_missing/accel_TCG/2906')
| -rw-r--r-- | gitlab/issues_text/target_missing/host_missing/accel_TCG/2906 | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gitlab/issues_text/target_missing/host_missing/accel_TCG/2906 b/gitlab/issues_text/target_missing/host_missing/accel_TCG/2906 new file mode 100644 index 000000000..8ee9d6540 --- /dev/null +++ b/gitlab/issues_text/target_missing/host_missing/accel_TCG/2906 @@ -0,0 +1,13 @@ +x86 (32-bit) multicore very slow, but x86-64 is fast (on macOS arm64 host) +Description of problem: +More cores doesn't slow down a x86-32 guest on an x86-64 host, nor does it slow down an x86-64 guest on an arm64 host. However, adding extra cores massively slows down an x86-32 guest on an arm64 host. +Steps to reproduce: +1. Run 32-bit guest or 32-bit installer +2. +3. + +I have replicated this over several OSes using homebrew qemu, source-built qemu and UTM. This is not to be confused with a different bug in UTM that caused its version of QEMU to be slow. + +This also seems to apply to 32-bit processes in an x86-64 guest. +Additional information: +https://github.com/utmapp/UTM/issues/5468 |