Thread (61 messages) 61 messages, 3 authors, 2017-10-18
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[PATCH v3 33/33] tracing: Add inter-event blurb to HIST_TRIGGERS config option

From: Tom Zanussi <hidden>
Date: 2017-09-22 20:06:09
Also in: lkml
Subsystem: the rest, tracing · Maintainers: Linus Torvalds, Steven Rostedt, Masami Hiramatsu

So that users know that inter-event tracing is supported as part of
the HIST_TRIGGERS option, include text to that effect in the help
text.

Signed-off-by: Tom Zanussi <redacted>
---
 kernel/trace/Kconfig | 3 +++
 1 file changed, 3 insertions(+)
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 434c840..ad55dde 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -585,6 +585,9 @@ config HIST_TRIGGERS
 	  event activity as an initial guide for further investigation
 	  using more advanced tools.
 
+	  Inter-event tracing of quantities such as latencies is also
+	  supported using hist triggers under this option.
+
 	  See Documentation/trace/events.txt.
 	  If in doubt, say N.
 
-- 
1.9.3
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