Re: Perfmon on Itanium

This is working out very nicely. Thanks.

I have a question about predication in the Itanium implementation. I
know that the ISA stipulates that the results of an operation
predicated as false are not committed to the register file. So there
are at least 2 ways this could be implemented in the
microarchitecture:

1. Have the operation executed, but not allow the results to update
the target register.

2. Prevent the operation from even being executed at all.

Thanks for your help,


Charles
Research Scientist/PhD Student

Center for Research on Embedded Systems and Technology
School of Electrical and Computer Engineering
Georgia Institute of Technology
778 Atlantic Drive NW, Suite 219
Atlanta, GA 30332-0250
Tel: 404-385-2403
Fax: 404-385-1746
Email: [email protected]
WWW: www.crest.gatech.edu





Stephane Eranian writes:
 > Hi,
 > 
 > On Mon, Aug 12, 2002 at 04:51:43PM -0400, Mongkol Ekpanyapong wrote:
 > >     I would like to acquire process's performance information on Itanium.
 > > Currently I'm using kernel 2.4.17 and it provides me perfmon.
 > > However I don't know how to make interface to perfmon or any document regarding that.
 > > Any suggestion?
 > 
 > There is a tool called pfmon which can collect per-process (task) or 
 > system-wide monitoring information based on the IA-64 performance 
 > counters (PMU). ALL the features of the PMU for both Itanium and Itanium2 are
 > supported. Currently multi-threaded applications are not supported
 > in the per-process mode.
 > 
 > You can get this tool from:
 > 
 > 		ftp://ftp.hpl.hp.com/pub/linux-ia64/pfmon-1.1.tar.gz
 > 		(a  binary RPM is also available)
 > 
 > To get this tool to work, you NEED to use 2.4.18.
 > 
 > -- 
 > -Stephane
 > 
 > 
 > 
 > _______________________________________________
 > ia64-list mailing list
 > [email protected]
 > https://listman.redhat.com/mailman/listinfo/ia64-list
 > 

-- 
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Charles R. Hardnett www.crest.gatech.edu