QEMU slowdown and portability
Posted Feb 6, 2007 19:37 UTC (Tue) by jreiser
In reply to: KQEMU 1.3.0pre10 released - under the GPL
Parent article: KQEMU 1.3.0pre10 released - under the GPL
It is actually possible to run Windows in QEMU ... and it is completely usable.
QEMU and KQEMU are impressively good, but not that good. Installing TurboTax onto WindowsXP Pro running under Win4Lin Pro 3.0-0.7 [uses KQEMU] took around two hours, versus just a few minutes under native WindowsXP Pro running on the same hardware: a Pentium4 with 1GB RAM and "nothing" else running. Also, CPU utilization for (K)QEMU usually exceeds 90% even for simple things such as actually running TurboTax. WinXP graphics such as progress bars frequently do not get updated at all under Win4Lin. This shows that there is very little CPU power available for background tasks. TurboTax downloading updates thinks that something has gone wrong because the slowdown is excessive.
QEMU uses GCC ... (almost) trivially ported to any architecture supported by GCC
Except that QEMU's strategy requires a GCC version less than 4.0.
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