diff options
| author | Martin Pieuchot <mpi@cvs.openbsd.org> | 2013-03-12 09:37:17 +0000 |
|---|---|---|
| committer | Martin Pieuchot <mpi@cvs.openbsd.org> | 2013-03-12 09:37:17 +0000 |
| commit | f0edf71d0715678b64251c85b679f3192b0020d8 (patch) | |
| tree | ecfdecfd831ac54a526ebf9f664903cfddf09372 /sys/arch/amd64 | |
| parent | 22d6176c7a5b0d9982db2ad3b4a2e6befb249d3b (diff) | |
Fix kernel profiling on MP systems by using per-CPU buffers and teach
kgmon(8) to deal with them, this time without public header changes.
Previously various CPUs were iterating over the same global buffer at
the same time to modify it and never ended.
This diff includes some ideas submited by Thor Simon to NetBSD via miod@.
ok deraadt@, mikeb@, haesbaert@
Diffstat (limited to 'sys/arch/amd64')
| -rw-r--r-- | sys/arch/amd64/include/cpu.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/arch/amd64/include/cpu.h b/sys/arch/amd64/include/cpu.h index 61e9889d71f..c9977c895bb 100644 --- a/sys/arch/amd64/include/cpu.h +++ b/sys/arch/amd64/include/cpu.h @@ -1,4 +1,4 @@ -/* $OpenBSD: cpu.h,v 1.78 2013/02/12 08:06:22 mpi Exp $ */ +/* $OpenBSD: cpu.h,v 1.79 2013/03/12 09:37:16 mpi Exp $ */ /* $NetBSD: cpu.h,v 1.1 2003/04/26 18:39:39 fvdl Exp $ */ /*- @@ -128,6 +128,9 @@ struct cpu_info { struct ksensordev ci_sensordev; struct ksensor ci_sensor; +#ifdef GPROF + struct gmonparam *ci_gmon; +#endif }; #define CPUF_BSP 0x0001 /* CPU is the original BSP */ |