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[Qemu-devel] Qemu speed on system emulation/compiling benchmark (Solaris
From: |
Karel Gardas |
Subject: |
[Qemu-devel] Qemu speed on system emulation/compiling benchmark (Solaris9/SunStudio9/MICO 2.3.11) |
Date: |
Thu, 10 Jun 2004 23:41:17 +0200 (CEST) |
Hi,
so finally I've been able to install Solaris9 together with early access
SunStudio 9 and I'm just compiling MICO 2.3.11 (www.mico.org) by this
combo everything inside Qemu of course. I think this is a bit of miracle
that things are working quite well as an a real system (Thanks Fabrice!),
on the other hand, unfortunatelly the compilation is quite slow. My rough
guess is that it is about 30x-60x slower than on the real host. i.e. my
PIII-1GHz with Qemu/256MB (for Qemu) compiles the given set of files for
about 90 minutes, while real SourceForge.net machine
(Solaris9/x86/SunStudio8) compiled the same set of files in 2 minutes 44
seconds. Unfortunatelly I don't know exact hardware configuration of this
SF.net host and also I do not know exact compilation speed comparison of
SunStudio C++ 8 and 9 compilers, but I hope both hosts and compilers speed
are comparable, i.e. difference about 2-4x is not that big and is still
quite low to consider Qemu a bit slow for this task...
My question is, is there any way how to make system emulation faster? Now,
I'm using linux2.6.4/glibc2.2.5 as a host system and qemu-softmmu for
quest.
Thanks a lot,
Karel
PS: Even Qemu looks so slow for this task, I consider it to be the fastest
emulator from the free emaulators available. So thanks a lot to everybody
working on it, especially to Fabrice as a main author!
--
Karel Gardas address@hidden
ObjectSecurity Ltd. http://www.objectsecurity.com
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