On Tue, 2009-05-12 16:08:38 +0200, Jan-Florian Hilgenberg [Alfahosting GmbH] <[email protected]> wrote: > we have some trouble with high sys-load, if we are packing a large > amount of small files in a tar archiv. the cpu usage is low - but the > loadavg is unacceptable high.
This is probably your storage system going nuts. You'd easily check:
# cd /path/to/backup/source
# find . -type f -exec cat {} \; > /dev/null &
This basically reads all files. If you see the same load pattern
(compared to a real backup run), it's your storage system.
What exact OS version / kernel version / filesystem / filesystem mount
options are you using? Maybe there's a lot that can be tuned...
MfG, JBG
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Jan-Benedict Glaw [email protected] +49-172-7608481
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