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Message-Id: <20221018120056.1321426-2-sunliming@kylinos.cn>
Date: Tue, 18 Oct 2022 20:00:52 +0800
From: sunliming <sunliming@...inos.cn>
To: rostedt@...dmis.org, mingo@...nel.org
Cc: linux-kernel@...r.kernel.org, kelulanainsley@...il.com,
sunliming <sunliming@...inos.cn>
Subject: [PATCH 1/5] tracing/histogram: Fix incorrect description in histogram.rst
Commit b94bc80df648 ("tracing: Use a no_filter_buffering_ref to stop using the
filter buffer") switch the hist trigger to not use absolute time stamps but
left the documents incorrect, fix it.
Signed-off-by: sunliming <sunliming@...inos.cn>
---
Documentation/trace/histogram.rst | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/Documentation/trace/histogram.rst b/Documentation/trace/histogram.rst
index c1b685a38f6b..5eecf2e1c2cc 100644
--- a/Documentation/trace/histogram.rst
+++ b/Documentation/trace/histogram.rst
@@ -1667,12 +1667,11 @@ features have been added to the hist trigger support:
A note on inter-event timestamps: If common_timestamp is used in a
histogram, the trace buffer is automatically switched over to using
-absolute timestamps and the "global" trace clock, in order to avoid
-bogus timestamp differences with other clocks that aren't coherent
-across CPUs. This can be overridden by specifying one of the other
-trace clocks instead, using the "clock=XXX" hist trigger attribute,
-where XXX is any of the clocks listed in the tracing/trace_clock
-pseudo-file.
+the "global" trace clock, in order to avoid bogus timestamp differences
+with other clocks that aren't coherent across CPUs. This can be overridden
+by specifying one of the other trace clocks instead, using the "clock=XXX"
+hist trigger attribute, where XXX is any of the clocks listed in the
+tracing/trace_clock pseudo-file.
These features are described in more detail in the following sections.
--
2.25.1
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