Contributors: 13
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| John Levon |
218 |
66.67% |
3 |
18.75% |
| Philippe Elie |
24 |
7.34% |
1 |
6.25% |
| Greg Banks |
24 |
7.34% |
1 |
6.25% |
| Jason Yeh |
23 |
7.03% |
1 |
6.25% |
| Maynard Johnson |
10 |
3.06% |
1 |
6.25% |
| Mike Travis |
8 |
2.45% |
1 |
6.25% |
| Andrew Morton |
4 |
1.22% |
2 |
12.50% |
| Anton Blanchard |
4 |
1.22% |
1 |
6.25% |
| Robert Richter |
4 |
1.22% |
1 |
6.25% |
| Richard Henderson |
3 |
0.92% |
1 |
6.25% |
| Tejun Heo |
2 |
0.61% |
1 |
6.25% |
| Kamezawa Hiroyuki |
2 |
0.61% |
1 |
6.25% |
| Al Viro |
1 |
0.31% |
1 |
6.25% |
| Total |
327 |
|
16 |
|
/**
* @file oprofile_stats.c
*
* @remark Copyright 2002 OProfile authors
* @remark Read the file COPYING
*
* @author John Levon
*/
#include <linux/oprofile.h>
#include <linux/smp.h>
#include <linux/cpumask.h>
#include <linux/threads.h>
#include "oprofile_stats.h"
#include "cpu_buffer.h"
struct oprofile_stat_struct oprofile_stats;
void oprofile_reset_stats(void)
{
struct oprofile_cpu_buffer *cpu_buf;
int i;
for_each_possible_cpu(i) {
cpu_buf = &per_cpu(op_cpu_buffer, i);
cpu_buf->sample_received = 0;
cpu_buf->sample_lost_overflow = 0;
cpu_buf->backtrace_aborted = 0;
cpu_buf->sample_invalid_eip = 0;
}
atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
atomic_set(&oprofile_stats.event_lost_overflow, 0);
atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
atomic_set(&oprofile_stats.multiplex_counter, 0);
}
void oprofile_create_stats_files(struct dentry *root)
{
struct oprofile_cpu_buffer *cpu_buf;
struct dentry *cpudir;
struct dentry *dir;
char buf[10];
int i;
dir = oprofilefs_mkdir(root, "stats");
if (!dir)
return;
for_each_possible_cpu(i) {
cpu_buf = &per_cpu(op_cpu_buffer, i);
snprintf(buf, 10, "cpu%d", i);
cpudir = oprofilefs_mkdir(dir, buf);
/* Strictly speaking access to these ulongs is racy,
* but we can't simply lock them, and they are
* informational only.
*/
oprofilefs_create_ro_ulong(cpudir, "sample_received",
&cpu_buf->sample_received);
oprofilefs_create_ro_ulong(cpudir, "sample_lost_overflow",
&cpu_buf->sample_lost_overflow);
oprofilefs_create_ro_ulong(cpudir, "backtrace_aborted",
&cpu_buf->backtrace_aborted);
oprofilefs_create_ro_ulong(cpudir, "sample_invalid_eip",
&cpu_buf->sample_invalid_eip);
}
oprofilefs_create_ro_atomic(dir, "sample_lost_no_mm",
&oprofile_stats.sample_lost_no_mm);
oprofilefs_create_ro_atomic(dir, "sample_lost_no_mapping",
&oprofile_stats.sample_lost_no_mapping);
oprofilefs_create_ro_atomic(dir, "event_lost_overflow",
&oprofile_stats.event_lost_overflow);
oprofilefs_create_ro_atomic(dir, "bt_lost_no_mapping",
&oprofile_stats.bt_lost_no_mapping);
#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
oprofilefs_create_ro_atomic(dir, "multiplex_counter",
&oprofile_stats.multiplex_counter);
#endif
}