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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-11 13:03:11 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-11 13:03:11 -0800 |
commit | 73b4f63aebd6d57db4ca1d31fa6f8516651207b0 (patch) | |
tree | 49adf7fb3b8f45d040f7e633ba34040541279c28 /Documentation/locking/lockstat.txt | |
parent | bfe9183fdcc0575a648d1401facc649888a1f49a (diff) | |
parent | 52e68924dfa8d9de5d82f6798352eecc5f03a97d (diff) | |
download | linux-73b4f63aebd6d57db4ca1d31fa6f8516651207b0.tar.bz2 |
Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6
Pull documentation updates from Jonathan Corbet:
"Highlights this time around include:
- A thrashing of SubmittingPatches to bring it out of the "send
everything to Linus" era of kernel development.
- A new document on completions from Nicholas McGuire
- Lots of typo fixes, formatting improvements, corrections, build
fixes, and more"
* tag 'docs-for-linus' of git://git.lwn.net/linux-2.6: (35 commits)
Documentation: Fix the wrong command `echo -1 > set_ftrace_pid` for cleaning the filter.
can-doc: Fixed a wrong filepath in can.txt
Documentation: Fix trivial typo in comment.
kgdb,docs: Fix typo and minor style issues
Documentation: add description for FTRACE probe status
doc: brief user documentation for completion
Documentation/misc-devices/mei: Fix indentation of embedded code.
Documentation/misc-devices/mei: Fix indentation of enumeration.
Documentation/misc-devices/mei: Fix spacing around parentheses.
Documentation/misc-devices/mei: Fix formatting of headings.
Documentation: devicetree: Fix double words in Doumentation/devicetree
Documentation: mm: Fix typo in vm.txt
lockstat: Add documentation on contention and contenting points
Documentation: fix blackfin gptimers-example build errors
Fixes column alignment in table of contents entry 1.9 in Documentation/filesystems/proc.txt
CodingStyle: enable emacs display of trailing whitespace
DocBook: Do not exceed argument list limit
gpio: board.txt: Fix the gpio name example
Documentation/SubmittingPatches: unify whitespace/tabs for the DCO
MAINTAINERS: Add the docs-next git tree to the maintainer entry
...
Diffstat (limited to 'Documentation/locking/lockstat.txt')
-rw-r--r-- | Documentation/locking/lockstat.txt | 5 |
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 |