mirror of
https://github.com/schoebel/mars
synced 2024-12-18 04:34:48 +00:00
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
/*
|
|
* MARS Long Distance Replication Software
|
|
*
|
|
* This file is part of MARS project: http://schoebel.github.io/mars/
|
|
*
|
|
* Copyright (C) 2010-2014 Thomas Schoebel-Theuer
|
|
* Copyright (C) 2011-2014 1&1 Internet AG
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
|
|
#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
|
|
|
|
struct threshold global_io_threshold = {
|
|
.thr_limit = 30 * 1000000, // 30 seconds
|
|
.thr_factor = 100,
|
|
.thr_plus = 0,
|
|
};
|
|
EXPORT_SYMBOL_GPL(global_io_threshold);
|
|
|