linux_dsm_epyc7002/tools
Robert Richter 50a9667c93 perf tools: Add pmu mappings to header information
With dynamic pmu allocation there are also dynamically assigned pmu ids.
These ids are used in event->attr.type to describe the pmu to be used
for that event. The information is available in sysfs, e.g:

 /sys/bus/event_source/devices/breakpoint/type: 5
 /sys/bus/event_source/devices/cpu/type: 4
 /sys/bus/event_source/devices/ibs_fetch/type: 6
 /sys/bus/event_source/devices/ibs_op/type: 7
 /sys/bus/event_source/devices/software/type: 1
 /sys/bus/event_source/devices/tracepoint/type: 2

These mappings are needed to know which samples belong to which pmu.  If
a pmu is added dynamically like for ibs_fetch or ibs_op the type value
may vary.

Now, when decoding samples from perf.data this information in sysfs
might be no longer available or may have changed. We need to store it in
perf.data. Using the header for this. Now the header information created
with perf report contains an additional section looking like this:

 # pmu mappings: ibs_op = 7, ibs_fetch = 6, cpu = 4, breakpoint = 5, tracepoint = 2, software = 1

Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1345144224-27280-9-git-send-email-robert.richter@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-08-22 15:22:55 -03:00
..
firewire tools/firewire: nosy-dump: increment program version 2010-07-27 11:04:12 +02:00
hv Tools: hv: verify origin of netlink connector message 2012-06-10 00:29:46 +09:00
include/tools tools/include: Add byteshift headers for endian access 2012-02-28 10:22:51 -08:00
lguest lguest: move the lguest tool to the tools directory 2012-01-12 15:44:47 +10:30
lib/traceevent tools lib traceevent: Fix cast from pointer to integer for 32 bit 2012-08-08 12:40:44 -03:00
nfsd NFSD: Added fault injection script 2011-11-07 21:10:47 -05:00
perf perf tools: Add pmu mappings to header information 2012-08-22 15:22:55 -03:00
power tools/power: turbostat: fix large c1% issue 2012-07-19 22:26:33 -04:00
scripts perf tools: Let O= makes handle relative paths 2012-08-16 14:11:11 -03:00
testing fault-injection: fix failcmd.sh warning 2012-07-31 18:42:38 -07:00
usb testusb: expose looping forever option "l" to user 2012-06-13 16:15:03 -07:00
virtio virtio/tools: add delayed interupt mode 2012-05-02 18:22:14 +03:00
vm mm: Fix signal SIGFPE in slabinfo.c. 2012-07-02 23:11:14 +03:00
Makefile tools: Connect to the kernel build system 2012-04-11 15:00:17 -03:00