Thanks Stephane
What I mean by cumulative values is the values of additional counters / events
output by pfmon while sampling.
As shown below in last column:
~> pfmon --with-header --smpl-module=compact --long-smpl-periods=100000
-eGLOBAL_POWER_EVENTS:RUNNING,PAGE_WALK_TYPE:DTMISS,PAGE_WALK_TYPE:ITMISS
--short-smpl-period=100000 ls /dev/null
/dev/null
0 6132 6132 0 0xb7e8abe0 0x0000029137d7c537 0 0
-100000 0x0 0x65
1 6132 6132 0 0xb7e8ac5c 0x0000029137d8c557 0 0
-100000 0x0 0x65
2 6132 6132 0 0xb7e48250 0x0000029137da989e 0 0
-100000 0x0 0xc3
3 6132 6132 0 0xb7e04ae3 0x0000029137dbbeba 0 0
-100000 0x0 0xe4
4 6132 6132 0 0xb7e0380a 0x0000029137dcdb30 0 0
-100000 0x0 0x11b
5 6132 6132 0 0xb7dff171 0x0000029137de411f 0 0
-100000 0x0 0x172
6 6132 6132 0 0xb7e03e20 0x0000029137df8280 0 0
-100000 0x0 0x195
7 6132 6132 0 0xb7e054d6 0x0000029137e09a14 0 0
-100000 0x0 0x1c2
8 6132 6132 0 0xb7dbf695 0x0000029137e1d847 0 0
-100000 0x0 0x1f3
9 6132 6132 0 0xb7dbf8c1 0x0000029137e30bfa 0 0
-100000 0x0 0x20e
10 6132 6132 0 0xb7e0381c 0x0000029137e45233 0 0
-100000 0x0 0x243
11 6132 6132 0 0xb7db957e 0x0000029137e59276 0 0
-100000 0x0 0x25e
12 6132 6132 0 0xb7f16aee 0x0000029137e6d097 0 0
-100000 0x0 0x291
13 6132 6132 0 0xb7dba9b0 0x0000029137e8274a 0 0
-100000 0x0 0x2d1
14 6132 6132 0 0xb7dff506 0x0000029137ed8138 0 0
-100000 0x0 0x357
15 6132 6132 0 0xb7f0fcdd 0x0000029137eecd40 0 0
-100000 0x0 0x3c4
# total samples : 16
# total buffer overflows : 0
Can we get the values of these additional events / counters for that sampling
period only instead of cumulative one. The first event is for deciding sampling
period and rest of the events are additional, which I want to sample for the
sampling period.
Regards
JK
stephane eranian <[EMAIL PROTECTED]> wrote: JK,
On Wed, Apr 2, 2008 at 3:23 PM, J K Rai wrote:
> Hi all
>
> It seems that sampling option with pfmon gives the cumulative values of the
> events to be sampled.
>
You mean it gives you the IP-based profiles at the end. Samples are aggregated
by IP-address.
> Can we have it non cumulative i.e. like the no. of event observed during
> that sampling period.
>
You can have a sequential dump of the samples if you use a different sampling
module.
$ pfmon --smpl-module=compact --long-smpl-periods=2400000 my_test_program
0 19069 19069 1 0x400701 0x000020bc6cfe559d 17 0
-2400000
1 19069 19069 1 0x400701 0x000020bc6d15b975 17 0
-2400000
2 19069 19069 1 0x400701 0x000020bc6d2cbb54 17 0
-2400000
3 19069 19069 1 0x400701 0x000020bc6d43ccc1 17 0
-2400000
4 19069 19069 1 0x400701 0x000020bc6d5accff 17 0
-2400000
5 19069 19069 1 0x400701 0x000020bc6d71dbd4 17 0
-2400000
6 19069 19069 1 0x400701 0x000020bc6d88dbe9 17 0
-2400000
7 19069 19069 1 0x400701 0x000020bc6d9fea2b 17 0
-2400000
8 19069 19069 1 0x400701 0x000020bc6db6f7f6 17 0
-2400000
9 19069 19069 1 0x400701 0x000020bc6dcdf825 17 0
-2400000
> Regards
> JK
>
>
>
> can we have sampling option
>
> [email protected]
>
> stephane eranian wrote:
> Hello,
>
> On Wed, Apr 2, 2008 at 1:04 PM, J K Rai wrote:
> > 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?
> >
> >
> If you have an Intel Core 2, then use this. It is much better and
> easier to program
> and the libpfm support is in much better shape than for Pentium 4.
> Note that you'd
> have to find the equivalent events.
>
>
>
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