For integer workloads such as installing an OS you should expect TCG to
be about 12x slower than KVM on average. That is on current master; note
that TCG has gotten faster in the last couple of years. See a
performance comparison from v2.7.0 to v2.11.0 for SPEC06 here:
https://imgur.com/a/5P5zj
** Changed in: qemu
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1529173
Title:
Absolutely slow Windows XP SP3 installation
Status in QEMU:
Invalid
Bug
That was without KVM acceleration, so perhaps it's how it's meant to be.
With KVM everything is fast and smooth.
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https://bugs.launchpad.net/bugs/1529173
Title:
Absolutely slow
