From: "Liang, Kan" <kan.liang@linux.intel.com>
To: acme@redhat.com, linux-kernel@vger.kernel.org
Cc: eranian@google.com, ak@linux.intel.com, namhyung@kernel.org,
irogers@google.com, Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH 2/2] perf docs: Update the documentation for the save_type filter
Date: Thu, 25 Aug 2022 09:23:23 -0400 [thread overview]
Message-ID: <e5466ae3-98c9-1e9e-3ddb-bdb0245b6b5c@linux.intel.com> (raw)
In-Reply-To: <20220816125612.2042397-2-kan.liang@linux.intel.com>
Hi Arnaldo,
The kernel change has been merged into the tip perf/urgent branch.
Do you have any comments for the patch?
If it's OK for you, could you please pull this patch?
Thanks,
Kan
On 2022-08-16 8:56 a.m., kan.liang@linux.intel.com wrote:
> From: Kan Liang <kan.liang@linux.intel.com>
>
> Update the documentation to reflect the kernel changes.
>
> Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
> ---
> tools/perf/Documentation/perf-record.txt | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
> index 099817ef5150..d5c57ac1ee0a 100644
> --- a/tools/perf/Documentation/perf-record.txt
> +++ b/tools/perf/Documentation/perf-record.txt
> @@ -397,6 +397,9 @@ following filters are defined:
> - abort_tx: only when the target is a hardware transaction abort
> - cond: conditional branches
> - save_type: save branch type during sampling in case binary is not available later
> + For the platforms with Intel Arch LBR support (12th-Gen+ client or
> + 4th-Gen Xeon+ server), the save branch type is unconditionally enabled
> + when the taken branch stack sampling is enabled.
>
> +
> The option requires at least one branch type among any, any_call, any_ret, ind_call, cond.
next prev parent reply other threads:[~2022-08-25 13:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-16 12:56 [PATCH 1/2] perf/x86/lbr: Enable the branch type for the Arch LBR by default kan.liang
2022-08-16 12:56 ` [PATCH 2/2] perf docs: Update the documentation for the save_type filter kan.liang
2022-08-25 13:23 ` Liang, Kan [this message]
2022-08-22 9:00 ` [tip: perf/urgent] perf/x86/lbr: Enable the branch type for the Arch LBR by default tip-bot2 for Kan Liang
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