mirror of
https://github.com/schoebel/mars
synced 2024-12-14 10:45:51 +00:00
44 lines
819 B
C
44 lines
819 B
C
// (c) 2012 Thomas Schoebel-Theuer / 1&1 Internet AG
|
|
|
|
#include "lib_timing.h"
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
|
|
#ifdef CONFIG_MARS_DEBUG
|
|
|
|
int report_timing(struct timing_stats *tim, char *str, int maxlen)
|
|
{
|
|
int len = 0;
|
|
int time = 1;
|
|
int resol = 1;
|
|
static const char *units[] = {
|
|
"us",
|
|
"ms",
|
|
"s",
|
|
"ERROR"
|
|
};
|
|
const char *unit = units[0];
|
|
int unit_index = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < TIMING_MAX; i++) {
|
|
int this_len = scnprintf(str, maxlen, "<%d%s = %d (%lld) ", resol, unit, tim->tim_count[i], (long long)tim->tim_count[i] * time);
|
|
str += this_len;
|
|
len += this_len;
|
|
maxlen -= this_len;
|
|
if (maxlen <= 1)
|
|
break;
|
|
resol <<= 1;
|
|
time <<= 1;
|
|
if (resol >= 1000) {
|
|
resol = 1;
|
|
unit = units[++unit_index];
|
|
}
|
|
}
|
|
return len;
|
|
}
|
|
EXPORT_SYMBOL_GPL(report_timing);
|
|
|
|
#endif
|