summaryrefslogtreecommitdiffstats
path: root/kernel/sched_debug.c
Commit message (Collapse)AuthorAgeFilesLines
...
* sched: add se->vruntime debuggingIngo Molnar2007-10-151-3/+27
| | | | | | | | debug se->vruntime fields. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Mike Galbraith <efault@gmx.de>
* sched: remove precise CPU loadIngo Molnar2007-10-151-2/+0
| | | | | | | | | | | | CPU load calculations are statistical anyway, and there's little benefit from having it calculated on every scheduling event. So remove this code, it gets rid of a divide from the scheduler wakeup and context-switch fastpath. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Mike Galbraith <efault@gmx.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
* sched: debug: track maximum 'slice'Ingo Molnar2007-10-151-0/+2
| | | | | | | | | | | track the maximum amount of time a task has executed while the CPU load was at least 2x. (i.e. at least two nice-0 tasks were runnable) Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Mike Galbraith <efault@gmx.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
* sched: small sched_debug cleanupIngo Molnar2007-10-151-3/+7
| | | | | | | | | | | | | | | | small kernel/sched_debug.c cleanup - break up multi-variable assignment. no code changed: text data bss dec hex filename 38869 3550 24 42443 a5cb sched.o.before 38869 3550 24 42443 a5cb sched.o.after Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Mike Galbraith <efault@gmx.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
* sched: debug: fix sum_exec_runtime clearingIngo Molnar2007-09-051-0/+1
| | | | | | when cleaning sched-stats also clear prev_sum_exec_runtime. Signed-off-by: Ingo Molnar <mingo@elte.hu>
* sched: sched_clock_idle_[sleep|wakeup]_event()Ingo Molnar2007-08-231-1/+2
| | | | | | | | | | | | | | | | | | | | construct a more or less wall-clock time out of sched_clock(), by using ACPI-idle's existing knowledge about how much time we spent idling. This allows the rq clock to work around TSC-stops-in-C2, TSC-gets-corrupted-in-C3 type of problems. ( Besides the scheduler's statistics this also benefits blktrace and printk-timestamps as well. ) Furthermore, the precise before-C2/C3-sleep and after-C2/C3-wakeup callbacks allow the scheduler to get out the most of the period where the CPU has a reliable TSC. This results in slightly more precise task statistics. the ACPI bits were acked by Len. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Len Brown <len.brown@intel.com>
* sched debug: dont print kernel address in /proc/sched_debugIngo Molnar2007-08-101-1/+1
| | | | | | | | Arjan van de Ven pointed out that we should not print kernel addresses in world-readable /proc files - fix that. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* sched debug: remove the 'u64 now' parameter from print_task()/_rq()Ingo Molnar2007-08-091-6/+6
| | | | | | | | remove the 'u64 now' parameter from sched_debug.c:print_task()/_rq(). ( identity transformation that causes no change in functionality. ) Signed-off-by: Ingo Molnar <mingo@elte.hu>
* sched: remove the 'u64 now' parameter from print_cfs_rq()Ingo Molnar2007-08-091-2/+2
| | | | | | | | remove the 'u64 now' parameter from print_cfs_rq(). ( identity transformation that causes no change in functionality. ) Signed-off-by: Ingo Molnar <mingo@elte.hu>
* take sched_debug.c out of nasal demon territoryAl Viro2007-08-061-6/+6
| | | | | | | | C99 6.10.3[11]: preprocessing directive within the argument list of macro invocation => undefined behaviour. Don't do that... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] sched: reduce debug codeIngo Molnar2007-08-021-6/+16
| | | | | | | | | | | move the rest of the debugging/instrumentation code to under CONFIG_SCHEDSTATS too. This reduces code size and speeds code up: text data bss dec hex filename 33044 4122 28 37194 914a sched.o.before 32708 4122 28 36858 8ffa sched.o.after Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Fix leaks on /proc/{*/sched,sched_debug,timer_list,timer_stats}Alexey Dobriyan2007-07-311-1/+1
| | | | | | | | | | | On every open/close one struct seq_operations leaks. Kudos to /proc/slab_allocators. Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] sched: mark sysrq_sched_debug_show() staticJosh Triplett2007-07-261-1/+1
| | | | | | | | | | | | Only sched.c uses sysrq_sched_debug_show, and sched.c includes sched_debug.c, so all uses of sysrq_sched_debug_show occur in the same source file. Eliminates a sparse warning: warning: symbol 'sysrq_sched_debug_show' was not declared. Should it be static? Signed-off-by: Josh Triplett <josh@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* [PATCH] sched: remove stale version info from kernel/sched_debug.cIngo Molnar2007-07-131-1/+1
| | | | | | | | kernel/sched_debug.c referred to CFS -v20, but there's no CFS versioning needed within the upstream kernel. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sched: scheduler debugging, coreIngo Molnar2007-07-091-0/+275
scheduler debugging core: implement /proc/sched_debug and /proc/<PID>/sched files for scheduler debugging. Signed-off-by: Ingo Molnar <mingo@elte.hu>
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-05 22:16:00 +0000