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braindamage
2009 Apr 05
2
Xen benchmark
Hi all,
I''ve performed a benchmark on my server to compare performance with
and without Xen, and with and without domUs active. I used lmbench to
measure basic hardware operations on math and memory, and system
calls like mmap(), fork(), exec().
The results are at http://drainbamage.nl/2009/04/05/xen-benchmark/ .
It seems that Xen adds significant overhead to process creation
routines (fork, exec) and mmap and page faults.
However, I''m no OS expert, and I''d like your guys'' feedback on the
numbers and my interpretations of them. Does Xen really...