mbox series

[v3,0/2] tools perf: Add branch speculation info

Message ID cover.1675057032.git.sandipan.das@amd.com
Headers
Series tools perf: Add branch speculation info |

Message

Sandipan Das Jan. 30, 2023, 5:59 a.m. UTC 
  AMD Last Branch Record Extension Version 2 (LbrExtV2) provides branch
speculation information and the perf UAPI is extended to provide this in
a generic way. Make perf tool show this additional information.

The UAPI changes can be found in commit 93315e46b000 ("perf/core: Add
speculation info to branch entries").

Previous versions can be found at:
v2: https://lore.kernel.org/all/cover.1664356751.git.sandipan.das@amd.com/
v1: https://lore.kernel.org/all/cover.1660217326.git.sandipan.das@amd.com/

Changes in v3:
- Drop tools-side UAPI changes as they have already been added by other
  commits.
- Rebase on top of latest perf/core.

Changes in v2:
- Drop msr-index.h related changes for now.
- Rebase on top of latest perf/core.
- Fix UAPI breakage introduced by the ARM64 BRBE changes to perf branch
  entry.

Sandipan Das (2):
  perf script: Show branch speculation info
  perf session: Show branch speculation info in raw dump

 tools/perf/builtin-script.c |  5 +++--
 tools/perf/util/branch.c    | 15 +++++++++++++++
 tools/perf/util/branch.h    |  2 ++
 tools/perf/util/evsel.c     | 15 ++++++++++++---
 tools/perf/util/session.c   |  5 +++--
 5 files changed, 35 insertions(+), 7 deletions(-)

Comments

Arnaldo Carvalho de Melo Feb. 2, 2023, 1:05 a.m. UTC | #1 
Em Mon, Jan 30, 2023 at 11:29:14AM +0530, Sandipan Das escreveu:
> AMD Last Branch Record Extension Version 2 (LbrExtV2) provides branch
> speculation information and the perf UAPI is extended to provide this in
> a generic way. Make perf tool show this additional information.
> 
> The UAPI changes can be found in commit 93315e46b000 ("perf/core: Add
> speculation info to branch entries").
> 
> Previous versions can be found at:
> v2: https://lore.kernel.org/all/cover.1664356751.git.sandipan.das@amd.com/
> v1: https://lore.kernel.org/all/cover.1660217326.git.sandipan.das@amd.com/

Thanks, applied.

- Arnaldo

 
> Changes in v3:
> - Drop tools-side UAPI changes as they have already been added by other
>   commits.
> - Rebase on top of latest perf/core.
> 
> Changes in v2:
> - Drop msr-index.h related changes for now.
> - Rebase on top of latest perf/core.
> - Fix UAPI breakage introduced by the ARM64 BRBE changes to perf branch
>   entry.
> 
> Sandipan Das (2):
>   perf script: Show branch speculation info
>   perf session: Show branch speculation info in raw dump
> 
>  tools/perf/builtin-script.c |  5 +++--
>  tools/perf/util/branch.c    | 15 +++++++++++++++
>  tools/perf/util/branch.h    |  2 ++
>  tools/perf/util/evsel.c     | 15 ++++++++++++---
>  tools/perf/util/session.c   |  5 +++--
>  5 files changed, 35 insertions(+), 7 deletions(-)
> 
> -- 
> 2.34.1
>