tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2#include <linux/fs.h>
3#include <linux/init.h>
4#include <linux/pid_namespace.h>
5#include <linux/proc_fs.h>
6#include <linux/sched.h>
7#include <linux/sched/loadavg.h>
8#include <linux/sched/stat.h>
9#include <linux/seq_file.h>
10#include <linux/seqlock.h>
11#include <linux/time.h>
12
13#define LOAD_INT(x) ((x) >> FSHIFT)
14#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
15
16static int loadavg_proc_show(struct seq_file *m, void *v)
17{
18 unsigned long avnrun[3];
19
20 get_avenrun(avnrun, FIXED_1/200, 0);
21
22 seq_printf(m, "%lu.%02lu %lu.%02lu %lu.%02lu %ld/%d %d\n",
23 LOAD_INT(avnrun[0]), LOAD_FRAC(avnrun[0]),
24 LOAD_INT(avnrun[1]), LOAD_FRAC(avnrun[1]),
25 LOAD_INT(avnrun[2]), LOAD_FRAC(avnrun[2]),
26 nr_running(), nr_threads,
27 idr_get_cursor(&task_active_pid_ns(current)->idr) - 1);
28 return 0;
29}
30
31static int __init proc_loadavg_init(void)
32{
33 proc_create_single("loadavg", 0, NULL, loadavg_proc_show);
34 return 0;
35}
36fs_initcall(proc_loadavg_init);