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[PATCH] sched: reduce debug code

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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>
This commit is contained in:
Ingo Molnar 2007-08-02 17:41:40 +02:00
parent 8179ca23d5
commit 6cfb0d5d06
4 changed files with 39 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

22
kernel/sched_debug.c
View file

@ -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;
}