Re: [perfmon2] permon2; libpfm; iMac G5 iSight (PPC970FX)

[Flores, R. <rau...@lm...>]

Very good suggestion; Thanks

Pulled libpfm (HEAD) and I now get PM_CYC counts.

Fyi: the examples directory programs do not seem to work; have to run
self under the examples_v2.x directory


Thanks again Chris

ps

Appreciate all the work done here. Great job.



-----Original Message-----
From: Chris J Arges [mailto:ar...@li...] 
Sent: Thursday, December 04, 2008 2:43 PM
To: Flores, Raul
Cc: per...@li...
Subject: Re: [perfmon2] permon2; libpfm; iMac G5 iSight (PPC970FX)

Raul,

I have a ppc970fx machine here, that I have tested these patches on, and

I can replicate your bug running syst_smp. However, I get counts for 
PM_CYC when running libpfm/examples/self. I will look into this when I 
get a chance. Responses below.

--chris

Flores, Raul wrote:
>
> I have built the 2.6.28-rc4 Linux kernel on an iMac G5 iSight 
> (g5_defconfig) and installed libpfm3.6. I grabbed the kernel source 
> from git tree around Nov 21. I have to sneaker-net the git source over

> to my platform (no network) so not sure of any updates.
>
> When I run the syst_smp program found in libpfm-3.6/libpfms, I get the

> following results:
>
> imacG5 libpfms # ./syst_smp
>
> cpu_t=16 thread=44 session_t=96
>
> ncpus=1 npmds=2
>
> 1-way session
>
> monitoring for 10s on all CPUs
>
> CPU0 PMD2 0 PM_CYC
>
> CPU0 PMD4 38779676 PM_INST_CMPL
>
I can replicate this on my machine:

./syst_smp
cpu_t=24 thread=80 session_t=112
event counter = 2
group = 0
event counter = 4
group = 0
ncpus=2 npmds=4
2-way session
monitoring for 10s on all CPUs
CPU0 PMD2 0 PM_CYC
CPU0 PMD4 35079310731 PM_INST_CMPL
CPU1 PMD2 0 PM_CYC
CPU1 PMD4 35064659555 PM_INST_CMPL

> Also tried the "self" program under examples, and with both programs, 
> I get PM_CYC count displayed as 0 which doesn't seem right.
>
This is different, when I run libpfm/examples/self I get the following 
output on my machine:

$ ./self
sycall base 319
PMD2 21862697856 PM_CYC
PMD4 21860903581 PM_INST_CMPL

> Any ideas why? Am I missing something? Are there patches I should
apply?
>
Perhaps try grabbing the latest CVS head of libpfm, and testing with
that.
>
> Any help would be appreciated.
>
Sure thing, I'd be glad to help.
>
> Raul
>
>
>
>
> Here is some data on the system I have configured:
>
> Linux imacG5 2.6.28-rc4 #39 SMP Wed Dec 3 17:49:11 CST 2008 ppc64 
> PPC970FX, altivec supported PowerMac12,1 GNU/Linux
>
> Gnu C 4.1.2
>
> Gnu make 3.81
>
> binutils 2.18
>
> util-linux 2.13.1.1
>
> mount 2.13.1.1
>
> module-init-tools 3.4
>
> e2fsprogs 1.40.4
>
> PPP 2.4.4
>
> Linux C Library 2.6.1
>
> Dynamic linker (ldd) 2.6.1
>
> Procps 3.2.7
>
> Net-tools 1.60
>
> Kbd 1.13
>
> Sh-utils 6.10
>
> udev 124
>
> Modules Loaded perfmon_power4
>
> snd_aoa_codec_onyx
>
> snd_aoa_fabric_layout
>
> snd_aoa
>
> pmac_zilog
>
> serial_core
>
> snd_aoa_i2sbus
>
> snd_aoa_soundbus
>
> snd_pcm
>
> snd_page_alloc
>
> snd_timer
>
> snd
>
> soundcore
>
> uninorth_agp
>
> agpgart
>
>
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