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[Bug 1569491] Re: qemu system i386 poor performance on e5500 core


From: John Snow
Subject: [Bug 1569491] Re: qemu system i386 poor performance on e5500 core
Date: Wed, 04 Nov 2020 19:51:49 -0000

I'm triaging old bugs: Can you provide command lines, versions, and
steps to test and measure the relative performance?

At the very least, please try to confirm on the latest version of QEMU
(5.2.0-rc0, if possible) to update this report.

** Changed in: qemu
       Status: Opinion => Incomplete

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https://bugs.launchpad.net/bugs/1569491

Title:
  qemu system i386 poor performance on e5500 core

Status in QEMU:
  Incomplete

Bug description:
  I had been tested with generic core net building or with mtune e5500 but i 
have the same result: performances 
  are extremly low compared with other classes of powerpc cpu.
  The strange is the 5020 2ghz in all emulators been tested by me is comparable 
with a 970MP 2.7 ghz in speed and benchmarks but im facing the half of 
performance in i386-soft-mmu compared with a 2.5 ghz 970MP.

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