[Valgrind-users] Warnings with cachegrind tool

[Zhiyao T. <mc...@gm...>]

Hi,

I planed to use cachegrind tool to profile the instruction and data
cache usage in my program. When I startup it with default options
"valgrind --tool=cachegrind MyProgram", it shows following information
at the beginning:

......
--11725-- warning: Unknown Intel cache config value (0xB1), ignoring
--11725-- warning: Unknown Intel cache config value (0x5), ignoring
--11725-- warning: Unknown Intel cache config value (0xF0), ignoring
--11725-- warning: Unknown Intel cache config value (0x57), ignoring
--11725-- warning: Unknown Intel cache config value (0x56), ignoring
--11725-- warning: Unknown Intel cache config value (0x49), ignoring
--11725-- warning: Unknown Intel cache config value (0xB4), ignoring
--11725-- warning: L2 cache not installed, ignore L2 results.
......

The valgrind I used is valgrind-3.2.0-Debian. Seems that it can't
recognize the CPU cache config. Shall I specified the I1/D1/L2 options
directly in command line? If so, what values to use? According to the
content of /proc/cpuinfo, my box has 4 CPUs, every one is like this:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Xeon(R) CPU            5130  @ 2.00GHz
stepping        : 6
cpu MHz         : 1994.999
cache size      : 4096 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall
nx lm constant_tsc pni monitor ds_cpl vmx tm2 cx16 xtpr lahf_lm
bogomips        : 3993.78
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:


Thanks a lot