> We also used OptimizeIt to track down where the % CPU increases and > observed some of the jetspeed framework calls > are pretty high cpu intensive. Any opinions on this.?
Shan, Would it possible for you to share with us the OptimizeIt reports? David > -----Original Message----- > From: Shan Gopalakrishnan [mailto:[EMAIL PROTECTED]] > Sent: Saturday, July 20, 2002 11:03 AM > To: Jetspeed Users List > Subject: high CPU utilization > Importance: High > > > Hello folks > > Our team did a quick poc application in jetspeed and did a load > test thru' > load runner. > Below is the configuration of the Solaris box. We had just that > jetspeed > application running in that box while > doing the load test. We used Tomcat 4.0.3 as the servlet engine. > > System Configuration: Sun Microsystems sun4u Sun Enterprise 220R (2 X > UltraSPARC-II 450MHz) > System clock frequency: 113 MHz > Memory size: 2048 Megabytes > ========================= CPUs ========================= > Run Ecache CPU CPU > Brd CPU Module MHz MB Impl. Mask > --- --- ------- ----- ------ ------ ---- > 0 0 0 450 4.0 US-II 10.0 > 0 2 2 450 4.0 US-II 10.0 > ========================= IO Cards ========================= > Bus Freq > Brd Type MHz Slot Name Model > --- ---- ---- ---------- -------------------------------- > ---------------------- > 0 PCI 33 On-Board network-SUNW,hme > 0 PCI 33 On-Board scsi-glm/disk (block) > Symbios,53C875 > 0 PCI 33 On-Board scsi-glm/disk (block) > Symbios,53C875 > > > The results came out to be as follows : > > For 80 concurrent users with ( zero sleep time ) the % CPU utilization > was 85% in the box where jetspeed was running > For 150 simultaneous users ( with 30 seconds sleep time ) the % CPU > utilization was around 78% or so in the box where jetspeed was > running. As > we spiked the value the performance was going down . The initial response > time is expected to return within 5 to 6 seconds . > But during the peak load the response was going down enormously. > > We observed the middle-tier and the database back-end was stable > and showed > less than 10% CPU utilization. > > We also used OptimizeIt to track down where the % CPU increases and > observed some of the jetspeed framework calls > are pretty high cpu intensive. Any opinions on this.? > > - Shan > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
