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[Bug 1896754] Re: Performance degradation for WinXP boot time after b55f
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From: |
Thomas Huth |
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Subject: |
[Bug 1896754] Re: Performance degradation for WinXP boot time after b55f54bc |
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Date: |
Fri, 14 May 2021 09:06:14 -0000 |
Ticket has been moved here (thanks, Maksim!):
https://gitlab.com/qemu-project/qemu/-/issues/286
Thus closing this one at Launchpad now.
** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #286
https://gitlab.com/qemu-project/qemu/-/issues/286
** Changed in: qemu
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1896754
Title:
Performance degradation for WinXP boot time after b55f54bc
Status in QEMU:
Invalid
Bug description:
Qemu 5.1 loads Windows XP in TCG mode 5-6 times slower (~2 minutes)
than 4.2 (25 seconds), I git bisected it, and it appears that commit
b55f54bc965607c45b5010a107a792ba333ba654 causes this issue. Probably
similar to an older fixed bug
https://bugs.launchpad.net/qemu/+bug/1672383
Command line is trivial: qemu-system-x86_64 -nodefaults -vga std -m
4096M -hda WinXP.qcow2 -monitor stdio -snapshot
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