diff options
Diffstat (limited to 'pfinet/linux-src/include/linux/kernel_stat.h')
| -rw-r--r-- | pfinet/linux-src/include/linux/kernel_stat.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/linux/kernel_stat.h b/pfinet/linux-src/include/linux/kernel_stat.h new file mode 100644 index 00000000..cd584c1a --- /dev/null +++ b/pfinet/linux-src/include/linux/kernel_stat.h @@ -0,0 +1,50 @@ +#ifndef _LINUX_KERNEL_STAT_H +#define _LINUX_KERNEL_STAT_H + +#include <asm/irq.h> +#include <linux/smp.h> +#include <linux/tasks.h> + +/* + * 'kernel_stat.h' contains the definitions needed for doing + * some kernel statistics (CPU usage, context switches ...), + * used by rstatd/perfmeter + */ + +#define DK_NDRIVE 4 + +struct kernel_stat { + unsigned int cpu_user, cpu_nice, cpu_system; + unsigned int per_cpu_user[NR_CPUS], + per_cpu_nice[NR_CPUS], + per_cpu_system[NR_CPUS]; + unsigned int dk_drive[DK_NDRIVE]; + unsigned int dk_drive_rio[DK_NDRIVE]; + unsigned int dk_drive_wio[DK_NDRIVE]; + unsigned int dk_drive_rblk[DK_NDRIVE]; + unsigned int dk_drive_wblk[DK_NDRIVE]; + unsigned int pgpgin, pgpgout; + unsigned int pswpin, pswpout; + unsigned int irqs[NR_CPUS][NR_IRQS]; + unsigned int ipackets, opackets; + unsigned int ierrors, oerrors; + unsigned int collisions; + unsigned int context_swtch; +}; + +extern struct kernel_stat kstat; + +/* + * Number of interrupts per specific IRQ source, since bootup + */ +extern inline int kstat_irqs (int irq) +{ + int i, sum=0; + + for (i = 0 ; i < smp_num_cpus ; i++) + sum += kstat.irqs[cpu_logical_map(i)][irq]; + + return sum; +} + +#endif /* _LINUX_KERNEL_STAT_H */ |