13 Aug, 2015

1 commit

• 5ed3ccbd5   bpf: fix build warnings and add function read_trace_pipe() ... Browse Code »

  There are two improvements in this patch:
  1. Fix the build warnings;
  2. Add function read_trace_pipe() to print the result on
  the screen;

  Before this patch, we can get the result through /sys/kernel/de
  bug/tracing/trace_pipe and get nothing on the screen.
  By applying this patch, the result can be printed on the screen.
  $ ./tracex6
  ...
  tracex6-705 [003] d..1 131.428593: : CPU-3 19981414
  sshd-683 [000] d..1 131.428727: : CPU-0 221682321
  sshd-683 [000] d..1 131.428821: : CPU-0 221808766
  sshd-683 [000] d..1 131.428950: : CPU-0 221982984
  sshd-683 [000] d..1 131.429045: : CPU-0 222111851
  tracex6-705 [003] d..1 131.429168: : CPU-3 20757551
  sshd-683 [000] d..1 131.429170: : CPU-0 222281240
  sshd-683 [000] d..1 131.429261: : CPU-0 222403340
  sshd-683 [000] d..1 131.429378: : CPU-0 222561024
  ...

  Signed-off-by: Kaixu Xia
  Acked-by: Alexei Starovoitov
  Signed-off-by: David S. Miller

  Kaixu Xia

  2015-08-13 07:39:12 +0800  

10 Aug, 2015

1 commit

• 47efb3027   samples/bpf: example of get selected PMU counter value ... Browse Code »

  This is a simple example and shows how to use the new ability
  to get the selected Hardware PMU counter value.

  Signed-off-by: Kaixu Xia
  Signed-off-by: David S. Miller

  Kaixu Xia

  2015-08-10 13:50:06 +0800