topic Vtune vmlinux unresolved address in Analyzers

Vtune vmlinux unresolved address

boriwalanirmal — Wed, 02 Jun 2010 14:38:21 GMT

Hey every one

I am using to profile my application but most of theCPUtime is consumed by "vmlinux unresolved address".

Can anybody help me understand why is thishappening.

I am using Intel 2*quad core 5300.

Thanx for reading.

Vtune vmlinux unresolved address

Peter_W_Intel — Thu, 03 Jun 2010 08:00:05 GMT

My comments -

1. Most of samples (CPU_CLK_UNHALTED.CORE) were dropped in vmlinux, that means target application is not very busy during sampling data collection. Linux* system modules provide service, e.g. IDLE handler.

2. Unresolved address, I know that usually was caused byCompressedLinux* kernel module used.

Regards, Peter

Vtune vmlinux unresolved address

boriwalanirmal — Thu, 03 Jun 2010 18:06:34 GMT

Hello Peter

Ya you are right its that, Vtune looks for vmlinux and my system has vmlinuz.

Can you help me resolve it.

thanx

Nirmal Boriwala

Vtune vmlinux unresolved address

Peter_W_Intel — Fri, 04 Jun 2010 05:02:50 GMT

"vmlinuz" means that you are using Linux compressed Linux* kernel.

VTune Performance Analyzer shows my Linux* modulelikeas "vmlinux-2.6.18-9.el5". So please work (boot from) on uncompressed Linux* system.

Thanks, Peter