From 5e84cfde51cf303d368fcb48f22059f37b3872de Mon Sep 17 00:00:00 2001 From: Laurent Vivier Date: Mon, 15 Oct 2007 17:00:19 +0200 Subject: [PATCH] sched: guest CPU accounting: add guest-CPU /proc/stat field as recent CPUs introduce a third running state, after "user" and "system", we need a new field, "guest", in cpustat to store the time used by the CPU to run virtual CPU. Modify /proc/stat to display this new field. Signed-off-by: Laurent Vivier Acked-by: Avi Kivity Signed-off-by: Ingo Molnar --- fs/proc/proc_misc.c | 15 +++++++++++---- include/linux/kernel_stat.h | 1 + 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index bee251cb87c..b872a01ad3a 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -443,6 +443,7 @@ static int show_stat(struct seq_file *p, void *v) int i; unsigned long jif; cputime64_t user, nice, system, idle, iowait, irq, softirq, steal; + cputime64_t guest; u64 sum = 0; struct timespec boottime; unsigned int *per_irq_sum; @@ -453,6 +454,7 @@ static int show_stat(struct seq_file *p, void *v) user = nice = system = idle = iowait = irq = softirq = steal = cputime64_zero; + guest = cputime64_zero; getboottime(&boottime); jif = boottime.tv_sec; @@ -467,6 +469,7 @@ static int show_stat(struct seq_file *p, void *v) irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq); softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq); steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal); + guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest); for (j = 0; j < NR_IRQS; j++) { unsigned int temp = kstat_cpu(i).irqs[j]; sum += temp; @@ -474,7 +477,7 @@ static int show_stat(struct seq_file *p, void *v) } } - seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu\n", + seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu %llu\n", (unsigned long long)cputime64_to_clock_t(user), (unsigned long long)cputime64_to_clock_t(nice), (unsigned long long)cputime64_to_clock_t(system), @@ -482,7 +485,8 @@ static int show_stat(struct seq_file *p, void *v) (unsigned long long)cputime64_to_clock_t(iowait), (unsigned long long)cputime64_to_clock_t(irq), (unsigned long long)cputime64_to_clock_t(softirq), - (unsigned long long)cputime64_to_clock_t(steal)); + (unsigned long long)cputime64_to_clock_t(steal), + (unsigned long long)cputime64_to_clock_t(guest)); for_each_online_cpu(i) { /* Copy values here to work around gcc-2.95.3, gcc-2.96 */ @@ -494,7 +498,9 @@ static int show_stat(struct seq_file *p, void *v) irq = kstat_cpu(i).cpustat.irq; softirq = kstat_cpu(i).cpustat.softirq; steal = kstat_cpu(i).cpustat.steal; - seq_printf(p, "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu\n", + guest = kstat_cpu(i).cpustat.guest; + seq_printf(p, + "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu %llu\n", i, (unsigned long long)cputime64_to_clock_t(user), (unsigned long long)cputime64_to_clock_t(nice), @@ -503,7 +509,8 @@ static int show_stat(struct seq_file *p, void *v) (unsigned long long)cputime64_to_clock_t(iowait), (unsigned long long)cputime64_to_clock_t(irq), (unsigned long long)cputime64_to_clock_t(softirq), - (unsigned long long)cputime64_to_clock_t(steal)); + (unsigned long long)cputime64_to_clock_t(steal), + (unsigned long long)cputime64_to_clock_t(guest)); } seq_printf(p, "intr %llu", (unsigned long long)sum); diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index 43e895f1cab..12bf44f083f 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -23,6 +23,7 @@ struct cpu_usage_stat { cputime64_t idle; cputime64_t iowait; cputime64_t steal; + cputime64_t guest; }; struct kernel_stat {