diff options
Diffstat (limited to 'kernel/sched_debug.c')
| -rw-r--r-- | kernel/sched_debug.c | 108 |
1 files changed, 68 insertions, 40 deletions
diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c index 22cf74c1dc03..e2c1e0dfdf50 100644 --- a/kernel/sched_debug.c +++ b/kernel/sched_debug.c @@ -28,6 +28,31 @@ printk(x); \ } while (0) +/* + * Ease the printing of nsec fields: + */ +static long long nsec_high(long long nsec) +{ + if (nsec < 0) { + nsec = -nsec; + do_div(nsec, 1000000); + return -nsec; + } + do_div(nsec, 1000000); + + return nsec; +} + +static unsigned long nsec_low(long long nsec) +{ + if (nsec < 0) + nsec = -nsec; + + return do_div(nsec, 1000000); +} + +#define SPLIT_NS(x) nsec_high(x), nsec_low(x) + static void print_task(struct seq_file *m, struct rq *rq, struct task_struct *p) { @@ -36,19 +61,19 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p) else SEQ_printf(m, " "); - SEQ_printf(m, "%15s %5d %15Ld %13Ld %5d ", + SEQ_printf(m, "%15s %5d %9Ld.%06ld %9Ld %5d ", p->comm, p->pid, - (long long)p->se.vruntime, + SPLIT_NS(p->se.vruntime), (long long)(p->nvcsw + p->nivcsw), p->prio); #ifdef CONFIG_SCHEDSTATS - SEQ_printf(m, "%15Ld %15Ld %15Ld\n", - (long long)p->se.vruntime, - (long long)p->se.sum_exec_runtime, - (long long)p->se.sum_sleep_runtime); + SEQ_printf(m, "%15Ld.%06ld %15Ld.%06ld %15Ld.%06ld\n", + SPLIT_NS(p->se.vruntime), + SPLIT_NS(p->se.sum_exec_runtime), + SPLIT_NS(p->se.sum_sleep_runtime)); #else - SEQ_printf(m, "%15Ld %15Ld %15Ld %15Ld %15Ld\n", - 0LL, 0LL, 0LL, 0LL, 0LL); + SEQ_printf(m, "%15Ld %15Ld %15Ld.%06ld %15Ld.%06ld %15Ld.%06ld\n", + 0LL, 0LL, 0LL, 0L, 0LL, 0L, 0LL, 0L); #endif } @@ -85,10 +110,8 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) SEQ_printf(m, "\ncfs_rq\n"); -#define P(x) \ - SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(cfs_rq->x)) - - P(exec_clock); + SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "exec_clock", + SPLIT_NS(cfs_rq->exec_clock)); spin_lock_irqsave(&rq->lock, flags); if (cfs_rq->rb_leftmost) @@ -99,19 +122,18 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) min_vruntime = rq->cfs.min_vruntime; rq0_min_vruntime = per_cpu(runqueues, 0).cfs.min_vruntime; spin_unlock_irqrestore(&rq->lock, flags); - SEQ_printf(m, " .%-30s: %Ld\n", "MIN_vruntime", - (long long)MIN_vruntime); - SEQ_printf(m, " .%-30s: %Ld\n", "min_vruntime", - (long long)min_vruntime); - SEQ_printf(m, " .%-30s: %Ld\n", "max_vruntime", - (long long)max_vruntime); + SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "MIN_vruntime", + SPLIT_NS(MIN_vruntime)); + SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "min_vruntime", + SPLIT_NS(min_vruntime)); + SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "max_vruntime", + SPLIT_NS(max_vruntime)); spread = max_vruntime - MIN_vruntime; - SEQ_printf(m, " .%-30s: %Ld\n", "spread", - (long long)spread); + SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread", + SPLIT_NS(spread)); spread0 = min_vruntime - rq0_min_vruntime; - SEQ_printf(m, " .%-30s: %Ld\n", "spread0", - (long long)spread0); -#undef P + SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "spread0", + SPLIT_NS(spread0)); } static void print_cpu(struct seq_file *m, int cpu) @@ -131,6 +153,8 @@ static void print_cpu(struct seq_file *m, int cpu) #define P(x) \ SEQ_printf(m, " .%-30s: %Ld\n", #x, (long long)(rq->x)) +#define PN(x) \ + SEQ_printf(m, " .%-30s: %Ld.%06ld\n", #x, SPLIT_NS(rq->x)) P(nr_running); SEQ_printf(m, " .%-30s: %lu\n", "load", @@ -139,21 +163,22 @@ static void print_cpu(struct seq_file *m, int cpu) P(nr_load_updates); P(nr_uninterruptible); SEQ_printf(m, " .%-30s: %lu\n", "jiffies", jiffies); - P(next_balance); + PN(next_balance); P(curr->pid); - P(clock); - P(idle_clock); - P(prev_clock_raw); + PN(clock); + PN(idle_clock); + PN(prev_clock_raw); P(clock_warps); P(clock_overflows); P(clock_deep_idle_events); - P(clock_max_delta); + PN(clock_max_delta); P(cpu_load[0]); P(cpu_load[1]); P(cpu_load[2]); P(cpu_load[3]); P(cpu_load[4]); #undef P +#undef PN print_cfs_stats(m, cpu); @@ -170,7 +195,7 @@ static int sched_debug_show(struct seq_file *m, void *v) (int)strcspn(init_utsname()->version, " "), init_utsname()->version); - SEQ_printf(m, "now at %Lu nsecs\n", (unsigned long long)now); + SEQ_printf(m, "now at %Lu.%06ld msecs\n", SPLIT_NS(now)); for_each_online_cpu(cpu) print_cpu(m, cpu); @@ -228,20 +253,22 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m) SEQ_printf(m, "----------------------------------------------\n"); #define P(F) \ SEQ_printf(m, "%-25s:%20Ld\n", #F, (long long)p->F) +#define PN(F) \ + SEQ_printf(m, "%-25s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F)) - P(se.exec_start); - P(se.vruntime); - P(se.sum_exec_runtime); + PN(se.exec_start); + PN(se.vruntime); + PN(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.slice_max); - P(se.wait_max); + PN(se.wait_start); + PN(se.sleep_start); + PN(se.block_start); + PN(se.sleep_max); + PN(se.block_max); + PN(se.exec_max); + PN(se.slice_max); + PN(se.wait_max); #endif SEQ_printf(m, "%-25s:%20Ld\n", "nr_switches", (long long)(p->nvcsw + p->nivcsw)); @@ -249,6 +276,7 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m) P(policy); P(prio); #undef P +#undef PN { u64 t0, t1; |