We had such case in the past. I don't think it is the same reason
but might give you some ideas.
We had a lot of locks. By using plockstat it turned out that those
locks comes from malloc. Using mtmalloc or libumem reduced a number
of locks but it was still a huge number (and eating our CPU). By us
Try linking the JVM to libumem.so.1
(export LD_PRELOAD=/usr/lib/libumem.so.1)
I have, in the past, been able to reduce lock contention in malloc
using libumem malloc.
If that does not help, you need to see where the mallocs are coming
from in the code, and see if there's opportunity to change the
Hi,
I am a newbie in dtrace.
There is a multi-thread application running in my box. But looking prstat
Lmp i saw that almost all time is LCK and SLP.
A ran plockstat and saw the most locks were malloc, so I changed my
application to use mtmalloc, but didnt resolv the problem.
After cha
