Date: Mon, 15 Mar 2004 16:04:38 +0100 From: Bogdan TARU <bgd@icomag.de> To: freebsd-hackers@freebsd.org Subject: kernel activity Message-ID: <20040315150438.GA48241@icomag.de>
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Hi everyone, I'm running a pretty busy webserver, and right now I can see it's CPU-bound: %vmstat 1 procs memory page disks faults cpu r b w avm fre flt re pi po fr sr da0 ac0 in sy cs us sy id 78 2 0 1135684 144648 93 0 0 0 248 82 14 0 319 235 136 26 35 39 72 2 0 1135668 144060 25 0 0 0 160 0 19 0 1971 141871 1098 41 59 0 84 2 0 1135836 142692 82 0 0 0 405 0 35 0 3144 246325 1739 42 58 0 77 2 0 1135732 142104 168 0 0 0 343 0 20 0 2129 155969 1314 38 62 0 and I'm trying to figure out why so much time is consumed in 'system mode' (to see if I can further tune the box or not). Any idea what kind of structures/utilities I should consult for that? Thanks, bogdan PS. Advices like 'add more cpu power' and such are NOT welcomed, the box is already fully loaded, the webserver tuned, and if I cannot tune the box as to spend less time in system mode, then I will just load balance with another box.
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