Re: [perf-discuss] CPU fluctuations issue

2009-01-05 Thread S h i v
On Tue, Jan 6, 2009 at 7:19 AM, S h i v wrote: > > Mapping the system level information that sar(1) has thrown into > actual cause at process(or such) level has been the problem. > > Looking forward to get some insights. > On a side note, libgc.so (sun studio's garbage collection library) is bein

[perf-discuss] CPU fluctuations issue

2009-01-05 Thread S h i v
Hi All, I have a T2000 system running a legacy application(having many processes >80). The sar(1) output shows about 10% fluctuations in the CPU utilization in the USER space while the SYSTEM space variations do not show evident problems. The problem I might trying to address is: The system has be

Re: [perf-discuss] how to find out kernel memory allocated by what threads?

2009-01-05 Thread johansen
> If you turn on kernel memory auditing with the kmem_flags variable, > you can use the ::kmausers dcmd in mdb to see which kernel stacks > resulted in the most memory allocations from each kmem cache. To > enable auditing, add 'set kmem_flags=0x1' to /etc/system and reboot. > > > We have a V490