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I have observed that the %si usage in the system goes to high values (10%) (in top output) with just with two ftp sessions from different external machines happening to ...
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- 09-05-2009 #1
- Join Date
- Sep 2009
The server configuration includes a 16 core CPU with 8 GB RAM. The ftp sessions are happening over IPSec tunnels.
The same is not observed when the FTP happens from the same external machine.
I am looking ways to to analyse which softirqs are taking more time so that we can optimize the usage. Please suggest.
Are there any kernel flags which I can switch on to get some statistical data about the softirq and get more insight into the operation?