Key for high CPU usage

Daniel.Li daniel_li at
Thu Jun 11 04:11:15 GMT 2009

Dear List,

I'm trying to take a closer look at rsync code, and found when we run
daemon, it will take a lot of CPU (400Mhz). So I'm interested in Which
part of rsync code on ver 3.0.5 consuming CPU a lot?

Can anyone here help to lighten me up? So I can try to improve the
performance or low the CPU usage.

I suspect that there are a few factors, which might related with CPU
usage: rolling checksum/Disk IO(a slide window has been implemented),
read or write?

Hope I can find some info here! Thanks in advance! 

Daniel Li

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