From: Xavier (xavier@rootshell.be)
Date: Wed Jul 24 2002 - 09:06:39 EDT
Hi,
Now that I installed DPCI, I had a look to the box which has problems.
The box (DS20/2x667/2Gb) runs a RADIUS server and has a look average >10 during peak hours,
but continue to handle requests... For each request received, the RADIUS daemon forks itself, monitor reports ~12 forks/sec.
DPCI reported that (after /vmunix), /usr/shlib/libpthread.so is the most consuming image
in the system, and:
Top 5 in /vmunix:
valid retired !retired !notrap
:retdelay % cum% :count % :count % :count % cycles % procedure image
5197540 29.43% 29.43% 14288127 78.09% 901 0.07% 38 0.03% 5315084 26.79% idle_thread /vmunix
4757171 26.93% 56.36% 473350 2.59% 166543 12.32% 10639 8.82% 3479216 17.54% tcp_rad_fasttimo /vmunix
2204999 12.48% 68.85% 581473 3.18% 20581 1.52% 10568 8.76% 870150 4.39% lock_try_write /vmunix
1506013 8.53% 77.37% 190481 1.04% 132858 9.83% 21592 17.90% 3510875 17.70% simple_lock /vmunix
Top 5 in /usr/shlib/libpthread.so:
valid retired !retired !notrap
:retdelay % cum% :count % :count % :count % cycles % procedure image
17099 26.31% 26.31% 6004 9.32% 1573 7.92% 42 4.51% 12715 16.86% __utlCompareSwapEqInt /usr/shlib/libpthread.so
14253 21.93% 48.24% 23022 35.72% 7422 37.38% 256 27.47% 12318 16.34% 0x3ff805ad220[near:__muIfLockedSetWaiter/__muWriteMeter] /usr/shlib/libpthread.so
13237 20.37% 68.60% 19440 30.17% 4254 21.42% 199 21.35% 16660 22.09% 0x3ff805abc90[near:__muInternal/__muRelock] /usr/shlib/libpthread.so
6302 9.70% 78.30% 8068 12.52% 2476 12.47% 221 23.71% 11095 14.71% __pthread_mutex_unlock /usr/shlib/libpthread.so
3934 6.05% 84.35% 3674 5.70% 602 3.03% 15 1.61% 4374 5.80% __pthread_mutex_lock /usr/shlib/libpthread.so
815 1.25% 85.61% 241 0.37% 93 0.47% 5 0.54% 536 0.71% __krnLock /usr/shlib/libpthread.so
Any idea how to increase performances?
Xavier
-- http://www.rootshell.be echo '16i[q]sa[ln0=aln100%Pln100/snlbx]sb20293A2058554E494Csnlbxq'|dc
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