AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/tools
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David Ahern 64eff7d9c4 perf script: Add option to stop printing callchain 
Allow user to specify list of symbols which cause the dump of callchains
to stop at that symbol.

Committer notes:

Testing it:

  # perf record -ag usleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 1.177 MB perf.data (33 samples) ]
  #
  # # Without it:
  #
  # perf script
  swapper   0 [000]  9693.370039:          1 cycles:ppp:
                  2072ad x86_pmu_enable (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a29d7 perf_pmu_enable.part.90 (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a713a ctx_resched (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a76c1 __perf_event_enable (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a0390 event_function (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a1cff remote_function (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  326978 flush_smp_call_function_queue (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  327413 generic_smp_call_function_single_interrupt (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  249b37 smp_call_function_single_interrupt (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  a04b2c call_function_single_interrupt (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  889427 cpuidle_enter (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  2e534a call_cpuidle (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  2e5730 cpu_startup_entry (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  9f5167 rest_init (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                 137ffeb start_kernel ([kernel.vmlinux].init.text)
                 137f2ca x86_64_start_reservations ([kernel.vmlinux].init.text)
                 137f419 x86_64_start_kernel ([kernel.vmlinux].init.text)

  swapper   0 [000]  9693.370044:          1 cycles:ppp:
                  20ca1b intel_pmu_handle_irq (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  205b0c perf_event_nmi_handler (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  22a14a nmi_handle (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  22a6b3 default_do_nmi (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  22a83c do_nmi (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  a03fb1 end_repeat_nmi (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a29d7 perf_pmu_enable.part.90 (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a713a ctx_resched (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a76c1 __perf_event_enable (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a0390 event_function (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a1cff remote_function (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  326978 flush_smp_call_function_queue (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  327413 generic_smp_call_function_single_interrupt (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  249b37 smp_call_function_single_interrupt (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  a04b2c call_function_single_interrupt (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  889427 cpuidle_enter (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  2e534a call_cpuidle (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  2e5730 cpu_startup_entry (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  9f5167 rest_init (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                 137ffeb start_kernel ([kernel.vmlinux].init.text)
                 137f2ca x86_64_start_reservations ([kernel.vmlinux].init.text)
  #
  # # Using it to see just what are the calls from the 'remote_function' function:
  #
  # perf script --stop-bt remote_function
  swapper   0 [000]  9693.370039:          1 cycles:ppp:
                  2072ad x86_pmu_enable (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a29d7 perf_pmu_enable.part.90 (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a713a ctx_resched (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a76c1 __perf_event_enable (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a0390 event_function (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a1cff remote_function (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)

  swapper   0 [000]  9693.370044:          1 cycles:ppp:
                  20ca1b intel_pmu_handle_irq (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  205b0c perf_event_nmi_handler (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  22a14a nmi_handle (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  22a6b3 default_do_nmi (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  22a83c do_nmi (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  a03fb1 end_repeat_nmi (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a29d7 perf_pmu_enable.part.90 (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a713a ctx_resched (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a76c1 __perf_event_enable (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a0390 event_function (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)
                  3a1cff remote_function (/usr/lib/debug/lib/modules/4.8.8-300.fc25.x86_64/vmlinux)

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1480104021-36275-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-11-29 13:06:19 -03:00
..
accounting
arch x86/cpufeature: Add AVX512_4VNNIW and AVX512_4FMAPS features 2016-10-19 17:37:13 +02:00
build tools build: Add jvmti feature detection support 2016-11-14 12:40:32 -03:00
cgroup
firewire
gpio
hv
iio
include tools: Update asm-generic/mman-common.h copy from the kernel 2016-10-28 11:29:43 -02:00
kvm/kvm_stat
laptop
lguest
lib tools lib bpf: Retrive bpf_map through offset of bpf_map_def 2016-11-29 12:10:19 -03:00
net
nfsd
objtool objtool: Fix rare switch jump table pattern detection 2016-10-27 08:20:27 +02:00
pcmcia
perf perf script: Add option to stop printing callchain 2016-11-29 13:06:19 -03:00
power tools/power/acpi: Remove direct kernel source include reference 2016-11-16 22:31:26 +01:00
scripts
spi
testing linux-kselftest-4.9-rc1-update 2016-10-14 15:17:12 -07:00
thermal/tmon
time
usb
virtio ringtest: poll for new buffers once before updating event index 2016-10-31 00:21:43 +02:00
vm
Makefile