[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH 1/2] win32: do not set CPU affinity
|
From: |
Roy Tam |
|
Subject: |
Re: [Qemu-devel] [PATCH 1/2] win32: do not set CPU affinity |
|
Date: |
Thu, 21 Feb 2013 15:53:27 +0800 |
2013/2/21 Paolo Bonzini <address@hidden>:
> Il 21/02/2013 01:35, Roy Tam ha scritto:
>>> > QEMU system emulation has been thread-safe for a long time, and
>>> > setting the CPU affinity is hurting performance badly. Remove
>>> > the bogus code.
>>> >
>>> > Jacob Kroon reports that the time to boot his VxWorks image goes from
>>> > "3 minutes passed and I still haven't made it that far" to ~140s.
>>> >
>> Yes it does work better for fdostest.img, but when I tried to boot
>> ttylinux-i686-14.0.iso, qemu freezes after showing "loading vmlinuz
>> ..."
>>
>
> Did it work without the patch?
Yes, at least linux kernel starts but stalls when hitting IO-APIC
thingy, with noapic boot switch it stalls after detecting ttyS0
With patch, QEMU is unresponsive when loading vmlinuz (not even
showing "Decompressing Linux" message)
>
> Paolo
[Qemu-devel] [PATCH 2/2] qemu-timer: move timeBeginPeriod/timeEndPeriod to os-win32, Paolo Bonzini, 2013/02/20