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authorLukas Larsson <[email protected]>2014-09-11 18:26:00 +0200
committerLukas Larsson <[email protected]>2014-12-09 14:21:00 +0100
commit6e3057ddddb77835664f5264a7da62452dc3d9c1 (patch)
treea65550467753347acca7e6c5dee39b0e8d5fbd54 /erts/doc/src
parent58f42056a6386b16edd647721df046db3581739b (diff)
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erts: Allow cpu_timestamp tracing for Linux
Diffstat (limited to 'erts/doc/src')
-rw-r--r--erts/doc/src/erlang.xml4
1 files changed, 3 insertions, 1 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index f9e8717847..37431cbf1b 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -6829,7 +6829,9 @@ ok
only allowed with <c>PidSpec==all</c>. If the host
machine operating system does not support high resolution
CPU time measurements, <c>trace/3</c> exits with
- <c>badarg</c>.</p>
+ <c>badarg</c>. Note that most operating systems do
+ not synchronize this value across cores, so be prepared
+ that time might seem to go backwards when using this option.</p>
</item>
<tag><c>arity</c></tag>
<item>