I currently have several SMP machines running Redhat 6.2 or 7.0, running
Orion 1.5.2, and using Suns JDK 1.3.0_02 or 1.3.1.
We did see some problems on hotspot when we were using 1.3.0 that caused
long unexplainable pauses (although ours were about 30 to 60 seconds). We
spent a long time watching things like memory footprint (thinking it was
maybe garbage collection) and CPU load, but nothing seemed related.
With a lot of beating our head into a wall and a week of high pressure, we
found that using the interpretted switch (-Xint) fixed these problems but
still retained a reasonable performance. It appeared that just-in-time
compiling was causing big problems on SMP machines, but more interesting was
that moving to a newer JDK (e.g. 1.3.0_02 or 1.3.1) appears to fix the
problem without any options to the JVM.
-----Original Message-----
From: James Hill [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, August 21, 2001 1:35 PM
To: Orion-Interest
Subject: SMP/Linux/Hotspot/Orion problem.
Did anyone find a real solution to this problem? I have 2 smp linux boxes
that running -classic mode (which is painfully slow). I have considered
removing (disabling) one of the CPS to fix it.
The symptoms are long pauses of up to 5+ minutes, then everything is ok.
Thanks,
James
