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[rhelv5-list] 2.6.18-128.el5 , slow performance, CPU 100% SI



Hi,

Just updated a HP Proliant DL-140 (no psp installed, dual cpu and 1G memory,
Linux software raid (mirror) ) from 5.2 to 5.3, and after a reboot to
activate kernel 2.6.18-128.el5 the system is very sluggish. Stopping
services like smb and dhcpd does not improve system performance at all.
Running only services like ssh and syslog, the top command still shows every
few seconds 100% CPU regarding SI (software interrupts if correct?).
Rebooting the system to activate previous (5.2) kernel 2.6.18-92.1.22.el5
solves the sluggish behavior and also does not show "CPU 100%si" .

Any idea what to check or adjust? 

Andre


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