Hi,

Following my investigations I reached the following documentation of
intel Vtunes amplifier tool:

http://software.intel.com/sites/products/documentation/doclib/stdxe/2013/~amplifierxe/pmw_dp/events/offcore_response.html

In this document, the bit 14 is described has nothing and the bit 12
is defined as remote cache forward AND local ram accesses.

According to this document, to the libpfm showevtinfo and to my
experiments I am concluding that the Intel documentation is wrong, and
that offcore response events are only able to count globally Local RAM
accesses and remote cache accesses. It's impossible to count these
events separately. This idea is conforted by the existence of core
event named MEM_UNCORE_RETIRED.LOCAL_DRAM_AND_REMOTE_CACHE_HIT and the
absence of separate events.

Nevertheless I was not able to confirm this hypothesis from an
official Intel documentation and was wondering where you (libpfm
author) got the information to write your library.

Thanks again for your help,

------
Manu

2014-02-13 9:59 GMT+01:00 Stephane Eranian <eran...@googlemail.com>:
> Manuel,
>
> Ok, let me do some more research on this. It's been a long time
> since WSM-DP.
>
>

------------------------------------------------------------------------------
Flow-based real-time traffic analytics software. Cisco certified tool.
Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer
Customize your own dashboards, set traffic alerts and generate reports.
Network behavioral analysis & security monitoring. All-in-one tool.
http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk
_______________________________________________
perfmon2-devel mailing list
perfmon2-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/perfmon2-devel

Reply via email to