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authorChristian Krinitsin <mail@krinitsin.com>2025-06-16 16:59:00 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-16 16:59:33 +0000
commit9aba81d8eb048db908c94a3c40c25a5fde0caee6 (patch)
treeb765e7fb5e9a3c2143c68b0414e0055adb70e785 /results/classifier/118/performance/589231
parentb89a938452613061c0f1f23e710281cf5c83cb29 (diff)
downloademulator-bug-study-9aba81d8eb048db908c94a3c40c25a5fde0caee6.tar.gz
emulator-bug-study-9aba81d8eb048db908c94a3c40c25a5fde0caee6.zip
add 18th iteration of classifier
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+performance: 0.963
+peripherals: 0.869
+KVM: 0.859
+device: 0.837
+graphic: 0.830
+risc-v: 0.731
+architecture: 0.639
+mistranslation: 0.611
+network: 0.606
+semantic: 0.550
+kernel: 0.514
+register: 0.503
+user-level: 0.498
+PID: 0.494
+hypervisor: 0.461
+virtual: 0.431
+socket: 0.422
+debug: 0.416
+ppc: 0.395
+boot: 0.392
+arm: 0.372
+i386: 0.317
+files: 0.296
+VMM: 0.283
+vnc: 0.273
+x86: 0.266
+permissions: 0.261
+TCG: 0.239
+assembly: 0.158
+
+cirrus vga is very slow in qemu-kvm-0.12
+
+As has been reported multiple times (*), there were a regression in qemu-kvm from 0.11 to 0.12, which causes significant slowdown in cirrus vga emulation.  For windows guests, where "standard VGA" driver works reasonable well, -vga std is a good workaround. But for e.g. linux guests, where vesa driver is painfully slow by its own, that's not a solution.
+
+(*)
+ debian qemu-kvm bug report #574988: http://bugs.debian.org/574988#17
+ debian qemu bugreport (might be related): http://bugs.debian.org/575720
+ kvm mailinglist thread: http://<email address hidden>/msg33459.html
+ another kvm ml thread: http://<email address hidden>/msg32744.html
+
+QEMU 0.12 is pretty much outdated - has this been fixed in a newer version of QEMU? I.e. do you think we can close this bug nowadays?
+
+[Expired for QEMU because there has been no activity for 60 days.]
+