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Bad performance of virtual disk driver
Hello,
I've using the following setup:
Hypervisor: Xen 2.0.5
dom0: Linux 2.6.10
domU: NetBSD 3.0_BETA (sources from 2005年04月28日)
The performace of the virtual disks is very bad ...
# dd if=/dev/xbd1b of=/dev/null bs=1024k
512+0 records in
512+0 records out
536870912 bytes transferred in 331.800 secs (1618055 bytes/sec)
... compared to the performance in the Linux dom0:
# dd if=/dev/vg/matthias-1swap of=/dev/null bs=1024k
512+0 records in
512+0 records out
536870912 bytes transferred in 15.469114 seconds (34705990 bytes/sec)
Has anybody else observered this problem?
Kind regards
--
Matthias Scheler http://scheler.de/~matthias/
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