aboutsummaryrefslogtreecommitdiff
path: root/Documentation/accounting/getdelays.c
AgeCommit message (Collapse)Author
2007-08-22Documentation: fix getdelays.c printf bugMichael Neuling
Commit b663a79c191508f27cd885224b592a878c0ba0f6 ("taskstats: add context-switch counters") incorrectly removed a comma from a printf statement. This causes corruption in the output printing or a seg fault. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16taskstats: add context-switch countersMaxim Uvarov
Make available to the user the following task and process performance statistics: * Involuntary Context Switches (task_struct->nivcsw) * Voluntary Context Switches (task_struct->nvcsw) Statistics information is available from: 1. taskstats interface (Documentation/accounting/) 2. /proc/PID/status (task only). This data is useful for detecting hyperactivity patterns between processes. [akpm@linux-foundation.org: cleanup] Signed-off-by: Maxim Uvarov <muvarov@ru.mvista.com> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Jay Lan <jlan@engr.sgi.com> Cc: Jonathan Lim <jlim@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08getdelays.c: fix overrunScott Wiersdorf
A patch for getdelays.c that fixes a buffer overrun when you set -w. Cc: <matt@bluehost.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08Taskstats: fix getdelays usage informationRandy Dunlap
Add usage to getdelays.c. This patch was originally posted by Randy Dunlap http://lkml.org/lkml/2007/3/19/168 Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-12-10[PATCH] io-accounting: add to getdelaysAndrew Morton
Wire up the IO accounting into getdelays.c. Usage: To display I/O stats for each exitting task: vmm:/home/akpm> ./getdelays -m0,1,2,3 -i -l cpumask 0 maskset 1 printing IO accounting listen forever rm: read=8192, write=0, cancelled_write=0 cvs: read=733184, write=4255744, cancelled_write=4096 make: read=217088, write=0, cancelled_write=0 cc1: read=4263936, write=12288, cancelled_write=0 as: read=811008, write=8192, cancelled_write=0 gcc: read=323584, write=0, cancelled_write=12288 cc1: read=0, write=8192, cancelled_write=0 as: read=4096, write=4096, cancelled_write=0 gcc: read=16384, write=0, cancelled_write=4096 as: read=4096, write=4096, cancelled_write=0 gcc: read=16384, write=0, cancelled_write=8192 ld: read=1011712, write=16384, cancelled_write=0 collect2: read=626688, write=0, cancelled_write=0 gcc: read=204800, write=0, cancelled_write=0 cc1: read=0, write=8192, cancelled_write=0 as: read=4096, write=4096, cancelled_write=0 gcc: read=16384, write=0, cancelled_write=8192 ld: read=8192, write=16384, cancelled_write=0 collect2: read=49152, write=0, cancelled_write=0 gcc: read=0, write=0, cancelled_write=0 cc1: read=0, write=4096, cancelled_write=0 ld: read=4096, write=12288, cancelled_write=0 collect2: read=49152, write=0, cancelled_write=0 gcc: read=0, write=0, cancelled_write=0 To display I/O stats for a particular presently-running task: vmm:/home/akpm> ./getdelays -i -p $(pidof crond) printing IO accounting crond: read=61440, write=0, cancelled_write=0 Cc: Jay Lan <jlan@sgi.com> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Chris Sturtivant <csturtiv@sgi.com> Cc: Tony Ernst <tee@sgi.com> Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net> Cc: David Wright <daw@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] getdelays: various fixesAndrew Morton
- Various cleanups - Report errors to stderr, not stdout - A printf was missing a \n and was hiding from me. Cc: Jay Lan <jlan@sgi.com> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Chris Sturtivant <csturtiv@sgi.com> Cc: Tony Ernst <tee@sgi.com> Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net> Cc: David Wright <daw@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03[PATCH] fix Documentation/accounting/getdelays.c buf sizeOleg Nesterov
getdelays reports a "fatal reply error, errno 258". We don't have enough room for multi-threaded exit (PID + TGID). Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01[PATCH] Fix getdelays.c - cpumask length and error reportingBalbir Singh
Fix the length passed while (un)registering cpumask. We were passing sizeof the array, make it strlen(). Error value printed in fatal errors should be derived from the message. The message contains an nlmsgerr embedded with an error value. We must report that value to the user. Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jamal Hadi <hadi@cyberus.ca> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Thomas Graf <tgraf@suug.ch> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-14[PATCH] per task delay accounting taskstats interface: documentation fixShailabh Nagar
Change documentation and example program to reflect the flow control issues being addressed by the cpumask changes. Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-14[PATCH] per-task-delay-accounting: documentationShailabh Nagar
Some documentation for delay accounting. Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>