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| author | Ingo Molnar <mingo@elte.hu> | 2007-08-02 17:41:40 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-08-02 17:41:40 +0200 |
| commit | 6cfb0d5d06bea2b8791f32145eae539d524e5f6c (patch) | |
| tree | ec84e29c73833fac72f7307b7573410b2e60b291 /kernel/sched_debug.c | |
| parent | [PATCH] sched: use schedstat_set() API (diff) | |
| download | linux-6cfb0d5d06bea2b8791f32145eae539d524e5f6c.tar.xz linux-6cfb0d5d06bea2b8791f32145eae539d524e5f6c.zip | |
[PATCH] sched: reduce debug code
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>
Diffstat (limited to 'kernel/sched_debug.c')
| -rw-r--r-- | kernel/sched_debug.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c index 0eca442b7792..1c61e5315ad2 100644 --- a/kernel/sched_debug.c +++ b/kernel/sched_debug.c @@ -44,11 +44,16 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p, u64 now) (long long)p->se.wait_runtime, (long long)(p->nvcsw + p->nivcsw), p->prio, +#ifdef CONFIG_SCHEDSTATS (long long)p->se.sum_exec_runtime, (long long)p->se.sum_wait_runtime, (long long)p->se.sum_sleep_runtime, (long long)p->se.wait_runtime_overruns, - (long long)p->se.wait_runtime_underruns); + (long long)p->se.wait_runtime_underruns +#else + 0LL, 0LL, 0LL, 0LL, 0LL +#endif + ); } static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu, u64 now) @@ -171,7 +176,7 @@ static int sched_debug_show(struct seq_file *m, void *v) u64 now = ktime_to_ns(ktime_get()); int cpu; - SEQ_printf(m, "Sched Debug Version: v0.05, %s %.*s\n", + SEQ_printf(m, "Sched Debug Version: v0.05-v20, %s %.*s\n", init_utsname()->release, (int)strcspn(init_utsname()->version, " "), init_utsname()->version); @@ -235,21 +240,24 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m) #define P(F) \ SEQ_printf(m, "%-25s:%20Ld\n", #F, (long long)p->F) - P(se.wait_start); + P(se.wait_runtime); P(se.wait_start_fair); P(se.exec_start); - P(se.sleep_start); P(se.sleep_start_fair); + P(se.sum_exec_runtime); + +#ifdef CONFIG_SCHEDSTATS + P(se.wait_start); + P(se.sleep_start); P(se.block_start); P(se.sleep_max); P(se.block_max); P(se.exec_max); P(se.wait_max); - P(se.wait_runtime); P(se.wait_runtime_overruns); P(se.wait_runtime_underruns); P(se.sum_wait_runtime); - P(se.sum_exec_runtime); +#endif SEQ_printf(m, "%-25s:%20Ld\n", "nr_switches", (long long)(p->nvcsw + p->nivcsw)); P(se.load.weight); @@ -269,7 +277,9 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m) void proc_sched_set_task(struct task_struct *p) { +#ifdef CONFIG_SCHEDSTATS p->se.sleep_max = p->se.block_max = p->se.exec_max = p->se.wait_max = 0; p->se.wait_runtime_overruns = p->se.wait_runtime_underruns = 0; +#endif p->se.sum_exec_runtime = 0; } |