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x86/oprofile: add CONFIG_OPROFILE_IBS option

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Signed-off-by: Robert Richter <[email protected]>
Cc: oprofile-list <[email protected]>
Cc: Robert Richter <[email protected]>
Cc: Barry Kasindorf <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Robert Richter 2008-07-22 21:09:06 +02:00 • committed by Ingo Molnar
commit 852402cc27
4 changed files with 47 additions and 10 deletions
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14
arch/Kconfig
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@ -13,6 +13,20 @@ config OPROFILE
If unsure, say N.
config OPROFILE_IBS
bool "OProfile AMD IBS support (EXPERIMENTAL)"
default n
depends on OPROFILE && SMP && X86
help
Instruction-Based Sampling (IBS) is a new profiling
technique that provides rich, precise program performance
information. IBS is introduced by AMD Family10h processors
(AMD Opteron Quad-Core processor “Barcelona”) to overcome
the limitations of conventional performance counter
sampling.
If unsure, say N.
config HAVE_OPROFILE
def_bool n