Thanks Dan And Stephen
I want to sample no. of accesses on TLB (I+D) and L2 cache misses
simultaneously for a given process / thread.
You said Pentium4 is complex. What's about xeon (single core and quad core) as
well as core2quad?
I am giving some more output on Pentium4 as asked by you. Problem is observed
in sampling, the counter value remains zero as shown below:
Kindly help me in fixing it.
Regards
JK
1. Without sampling:
===============
[EMAIL PROTECTED]:~> pfmon -ePAGE_WALK_TYPE:DTMISS:ITMISS ls /dev/null
/dev/null
1907 PAGE_WALK_TYPE:DTMISS:ITMISS
[EMAIL PROTECTED]:~> pfmon -ePAGE_WALK_TYPE:ITMISS:DTMISS ls /dev/null
/dev/null
1873 PAGE_WALK_TYPE:ITMISS:DTMISS
[EMAIL PROTECTED]:~> pfmon -ePAGE_WALK_TYPE:ITMISS ls /dev/null
/dev/null
920 PAGE_WALK_TYPE:ITMISS
[EMAIL PROTECTED]:~> pfmon -ePAGE_WALK_TYPE:DTMISS ls /dev/null
/dev/null
938 PAGE_WALK_TYPE:DTMISS
2. With sampling:
============
[EMAIL PROTECTED]:~> pfmon --with-header --smpl-module=compact
--long-smpl-periods=100000
-eGLOBAL_POWER_EVENTS:RUNNING,PAGE_WALK_TYPE:ITMISS:DTMISS
--short-smpl-period=100000 ls /dev/null
/dev/null
0 6924 6924 0 0xb7f1dbf8 0x000002470dd40e17 0 0
-100000 0x0
1 6924 6924 0 0xb7f1dc00 0x000002470dd50850 0 0
-100000 0x0
2 6924 6924 0 0xc02ac191 0x000002470dd68251 0 0
-100000 0x0
[EMAIL PROTECTED]:~>pfmon --with-header --smpl-module=compact
--long-smpl-periods=100000
-eGLOBAL_POWER_EVENTS:RUNNING,PAGE_WALK_TYPE:DTMISS:ITMISS
--short-smpl-period=100000 ls /dev/null
/dev/null
0 8892 8892 0 0xb7eb1c17 0x00000ee762d54eb6 0 0
-100000 0x0
1 8892 8892 0 0xb7eb1c5c 0x00000ee762d64a03 0 0
-100000 0x0
2 8892 8892 0 0xb7e21f23 0x00000ee762d7c810 0 0
-100000 0x0
[EMAIL PROTECTED]:~> pfmon --with-header --smpl-module=compact
--long-smpl-periods=100000 -eGLOBAL_POWER_EVENTS:RUNNING,PAGE_WALK_TYPE:DTMISS
--short-smpl-period=100000 ls /dev/null
/dev/null
0 7419 7419 0 0xb7e85be7 0x000002b1cc68054a 0 0
-100000 0x0
1 7419 7419 0 0xb7e85be4 0x000002b1cc68fd87 0 0
-100000 0x0
2 7419 7419 0 0xb7df5f60 0x000002b1cc6a8460 0 0
-100000 0x0
[EMAIL PROTECTED]:~> pfmon --with-header --smpl-module=compact
--long-smpl-periods=100000 -eGLOBAL_POWER_EVENTS:RUNNING,PAGE_WALK_TYPE:ITMISS
--short-smpl-period=100000 ls /dev/null
/dev/null
0 7466 7466 0 0xb7f4cbe4 0x000002c1224ed59a 0 0
-100000 0x0
1 7466 7466 0 0xb7f4cbe4 0x000002c1224fcfa4 0 0
-100000 0x0
2 7466 7466 0 0xc02ac191 0x000002c122514f63 0 0
-100000 0x0
Dan Terpstra <[EMAIL PROTECTED]> wrote: What happens if you count
PAGE_WALK_TYPE:DTMISS:ITMISS?
I suspect Stephane's right that the second counter assignment is probably
messed up. Pentium4's a beast...
- d
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:perfmon2-devel-
> [EMAIL PROTECTED] On Behalf Of stephane eranian
> Sent: Tuesday, April 01, 2008 3:20 AM
> To: J K Rai
> Cc: [email protected]
> Subject: Re: [perfmon2] Problems encountered on Pentium 4
>
> Hello,
>
> 2008/3/27 J K Rai :
> >
> > Problems encountered while using two events together:
> > ========================================================
> >
> **************************************************************************
> ****************************
> > The events mentioned first gets the count values while the next one
> remains
> > zero always as shown below
> >
> **************************************************************************
> ****************************
> >
> > session output:
> > ==============
> > [EMAIL PROTECTED]:~> pfmon -ePAGE_WALK_TYPE:DTMISS,PAGE_WALK_TYPE:ITMISS ls
> > /dev/null
> > /dev/null
> > 967 PAGE_WALK_TYPE:DTMISS
> > 0 PAGE_WALK_TYPE:ITMISS
> >
> Could you try measuring ONLY the second event instead? It may be a bug
> in libpfm assignment of events to counters. That would
> not surprise me on Pentium 4, it is so complicated.
>
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