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authorIngo Molnar <mingo@kernel.org>2015-02-28 08:03:10 +0100
committerIngo Molnar <mingo@kernel.org>2015-02-28 08:03:10 +0100
commit5838d18955b52467f4b30486e62a31727b39998d (patch)
tree8aeb8412156bab93a6b39f2de4a8d6c912ddb31a /Documentation/locking/lockstat.txt
parentx86/platform/intel-mid: Fix trivial printk message typo in intel_mid_arch_set... (diff)
parentMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff)
downloadlinux-5838d18955b52467f4b30486e62a31727b39998d.tar.xz
linux-5838d18955b52467f4b30486e62a31727b39998d.zip
Merge branch 'linus' into x86/urgent, to merge dependent patch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/locking/lockstat.txt')
-rw-r--r--Documentation/locking/lockstat.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/locking/lockstat.txt b/Documentation/locking/lockstat.txt
index 7428773a1e69..568bbbacee91 100644
--- a/Documentation/locking/lockstat.txt
+++ b/Documentation/locking/lockstat.txt
@@ -121,6 +121,11 @@ show the header with column descriptions. Lines 05-18 and 20-31 show the actual
statistics. These statistics come in two parts; the actual stats separated by a
short separator (line 08, 13) from the contention points.
+Lines 09-12 show the first 4 recorded contention points (the code
+which tries to get the lock) and lines 14-17 show the first 4 recorded
+contended points (the lock holder). It is possible that the max
+con-bounces point is missing in the statistics.
+
The first lock (05-18) is a read/write lock, and shows two lines above the
short separator. The contention points don't match the column descriptors,
they have two: contentions and [<IP>] symbol. The second set of contention