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linux/Documentation/locking/lockstat.txt

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lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
locking/Documentation/lockstat: Fix typo - lokcing -> locking Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiri Kosina <trivial@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1441842398-25063-1-git-send-email-sboyd@codeaurora.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-09-09 16:46:38 -07:00
Documentation: Add statistics about nested locks Explain what the trailing "/1" on some lock class names of lock_stat output means. Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4DD4F6C1.5090701@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-19 12:53:53 +02:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: Add usage info to Documentation/lockstat.txt Add usage info to Documentation/lockstat.txt Signed-off-by: Frank Rowand <frank.rowand@am.sony.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <4B05BE7D.30500@am.sony.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-19 13:54:05 -08:00
locking/stat: Fix a typo s/STATS/STAT Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1359019365-23646-1-git-send-email-yuanhan.liu@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-01-24 17:22:44 +08:00
lockstat: Add usage info to Documentation/lockstat.txt Add usage info to Documentation/lockstat.txt Signed-off-by: Frank Rowand <frank.rowand@am.sony.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <4B05BE7D.30500@am.sony.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-19 13:54:05 -08:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: Add usage info to Documentation/lockstat.txt Add usage info to Documentation/lockstat.txt Signed-off-by: Frank Rowand <frank.rowand@am.sony.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <4B05BE7D.30500@am.sony.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-19 13:54:05 -08:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
lockstat: contend with points We currently only provide points that have to wait on contention, also lists the points we have to wait for. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16 23:17:09 +02:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
lockstat: contend with points We currently only provide points that have to wait on contention, also lists the points we have to wait for. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16 23:17:09 +02:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: contend with points We currently only provide points that have to wait on contention, also lists the points we have to wait for. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16 23:17:09 +02:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: contend with points We currently only provide points that have to wait on contention, also lists the points we have to wait for. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16 23:17:09 +02:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: Add documentation on contention and contenting points Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-01-13 15:59:30 +01:00
lockstat: contend with points We currently only provide points that have to wait on contention, also lists the points we have to wait for. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16 23:17:09 +02:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: contend with points We currently only provide points that have to wait on contention, also lists the points we have to wait for. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16 23:17:09 +02:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: documentation update Christoph noted that the documentation doesn't tell in what unit the lockstat times are reported, ammend this. Reported-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-03 16:00:57 +02:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
Documentation: Add statistics about nested locks Explain what the trailing "/1" on some lock class names of lock_stat output means. Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4DD4F6C1.5090701@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-19 12:53:53 +02:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
Documentation: Add statistics about nested locks Explain what the trailing "/1" on some lock class names of lock_stat output means. Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4DD4F6C1.5090701@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-19 12:53:53 +02:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
Documentation: Add statistics about nested locks Explain what the trailing "/1" on some lock class names of lock_stat output means. Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4DD4F6C1.5090701@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-19 12:53:53 +02:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
Documentation: Add statistics about nested locks Explain what the trailing "/1" on some lock class names of lock_stat output means. Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4DD4F6C1.5090701@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-19 12:53:53 +02:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
Documentation: Add statistics about nested locks Explain what the trailing "/1" on some lock class names of lock_stat output means. Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4DD4F6C1.5090701@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-19 12:53:53 +02:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
Documentation: Add statistics about nested locks Explain what the trailing "/1" on some lock class names of lock_stat output means. Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4DD4F6C1.5090701@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-19 12:53:53 +02:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
Documentation: Add statistics about nested locks Explain what the trailing "/1" on some lock class names of lock_stat output means. Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4DD4F6C1.5090701@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-19 12:53:53 +02:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
Documentation: Add statistics about nested locks Explain what the trailing "/1" on some lock class names of lock_stat output means. Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4DD4F6C1.5090701@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-19 12:53:53 +02:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
Documentation: Add statistics about nested locks Explain what the trailing "/1" on some lock class names of lock_stat output means. Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4DD4F6C1.5090701@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-19 12:53:53 +02:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00
lockstat: Report avg wait and hold times While both the nr and total times are showed, having the avg lock hold and wait times show in the report is quite useful when working on performance related issues. Furthermore, I find myself constantly doing the calculations manually. In addition, some of the documentation examples were changed to easily update them to show the two new columns. No textual change otherwise, as descriptions match the lockstat output. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Cc: aswin@hp.com Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net [ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-08 20:37:16 -07:00
lockstat: documentation Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-07 00:24:33 -07:00