Re: ia64 metrics supported with 2.6 kernels

[<alext@fc...>]

On Tue, Nov 23, 2004 at 01:17:18PM -0600, Brent Henderson wrote:
> I'm attempting to build oprofile 0.8.1 for a SuSE 2.6 kernel.  It
> appears to be working, but I don't see any support for CPU metrics.

Hi Brent,

The ia64 SuSE SLES9 kernel is based on a 2.6.5 kernel.  That
kernel does not have the oprofile perfmon support patch that was
accepted into the 2.6.9 ia64 kernel.  That patch is necessary for
supporting the PMU metrics for oprofile.  I am planning to file
this in SuSE's bugzilla, but since the deadline for SP1 is past,
expect this to be fixed (if agreed to be fixed by SuSE) in the
SP2 timeframe.

Regards,
Alex

ia64 metrics supported with 2.6 kernels

[Brent Henderson <brent@rs...>]

I'm attempting to build oprofile 0.8.1 for a SuSE 2.6 kernel.  It
appears to be working, but I don't see any support for CPU metrics.

I get:
linux:~ # opcontrol -l
Using timer interrupt.
linux:~ #

I looked at docs/oprofile.html, but found the wording in section 2
confusing:

Supported architecture

    For Intel IA32, a CPU with either a P6 generation or Pentium 4
    core is required. In marketing terms this translates to anything
    between an Intel Pentium Pro (not Pentium Classics) and a Pentium
    4 / Xeon, including all Celerons. The AMD Athlon, Duron, and Hammer
    CPUs are also supported. Other IA32 CPU types only support the RTC
    mode of OProfile; please see later in this manual for details.
    Hyper-threaded Pentium IVs are not supported in 2.4. For 2.4 kernels,
    the Intel IA-64 CPUs are also supported. For 2.6 kernels, there is
    additionally support for Alpha processors, and sparc64, ppc64, and
    PA-RISC in timer mode.

I *think* this implies for 2.6 kernels, metrics on IA-64 cpus are not
supported.  Could someone confirm this?  I've seen a large list of
metrics for IA-64 on a 2.4 kernel, but I didn't build that version
myself, so I'm not sure if I just messed up my build, or it was not
expected to work.

thanks,

brent

Re: is there anyone who can run oprofile on SLES9/ppc64 successfully?

[Jian CJ Chen <chenjian@cn...>]

Re: is there anyone who can run oprofile on SLES9/ppc64 successfully?

[Philippe Elie <phil.el@wa...>]

On Tue, 23 Nov 2004 at 19:50 +0000, Jian CJ Chen wrote:

> 
> 
> 
> 
> Hi all:
> I tried to run oprofile on SLES9/ppc64 and encounter some problems. The
> kernel version is 2.6.5-7.97-pseries64.
> 
> 1.I used the latest oprofile:
> http://jaist.dl.sourceforge.net/sourceforge/oprofile/oprofile-0.8.1.tar.gz.

ChangeLog says ppc64 support has been added just after 0.8.1 release,
retry with oprofile cvs please.

regards,
Philippe Elie

is there anyone who can run oprofile on SLES9/ppc64 successfully?

[Jian CJ Chen <chenjian@cn...>]

Hi all:
I tried to run oprofile on SLES9/ppc64 and encounter some problems. The
kernel version is 2.6.5-7.97-pseries64.

1.I used the latest oprofile:
http://jaist.dl.sourceforge.net/sourceforge/oprofile/oprofile-0.8.1.tar.gz.
2.type ./configure --with-kernel-support
3.make(to compile successfully, you need to run "ln -s
/usr/lib/libpopt.so.1 /usr/lib/libpopt.so") SLES9 don't do it by default.
4.make install
5.opcontrol --vmlinux=/boot/vmlinux-2.6.5-7.97-pseries64
  This is the problem. It will report the following error:
      cpu_type '(null)' is not valid
  I am sure that it is when opcontrol executed "op_help
--get-default-event" that reported this error.
  op_help is an elf32 file installed by oprofile.
6.opcontrol --start
  This will fail to start oprofiled too. It echoed the same error messages
with 5.

I checked /dev/oprofile/ after step 5 and it showed the following:
   .   0  2  4  6  buffer       buffer_watershed  cpu_type  enable
   enable_user  mmcr1  pointer_size
   ..  1  3  5  7  buffer_size  cpu_buffer_size   dump      enable_kernel
   mmcr0        mmcra  stats
cpu_type contained the following line:
      ppc64/power4

Best Regards!

Chen Jian

LTC and pLinux Testing, China Software Development Lab, Beijing
TEL: 86-10-82782244-2838    FAX: 86-10-82782244-2887
E-mail: chenjian@...
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