Christian Borntraeger 6815823431 [S390] hwsampler: Set a sane default sampling rate ...

The sampling interval for the hardware sampler is specified in cycles.
(see SA23-2260-01 The Load-Program-Parameter and the CPU-Measurement
Facilities)
The current default value will therefore result in millions of samples.
This patch changes the default sampling interval to 4M, which will
result in ~1500 samples per second on a z196 reducing the overhead
of sampling.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2011-06-22 16:24:20 +02:00

..

backtrace.c

[PATCH] s390: add oprofile callgraph support

2006-01-06 08:33:50 -08:00

hwsampler.c

[S390] hwsampler: allow cpu hotplug

2011-05-26 09:48:25 +02:00

hwsampler.h

[S390] oprofile: fix min/max interval query checks

2011-05-10 17:13:43 +02:00

init.c

[S390] hwsampler: Set a sane default sampling rate

2011-06-22 16:24:20 +02:00

Makefile

[S390] oprofile: disable hw sampling for CONFIG_32BIT

2011-03-23 10:15:14 +01:00