1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* testing log message generator
* Copyright (C) 2019-2020 David Lamparter for NetDEF, Inc.
*/
#include <zebra.h>
#include <sys/resource.h>
#include "vty.h"
#include "command.h"
#include "prefix.h"
#include "nexthop.h"
#include "log.h"
#include "frrevent.h"
#include "vrf.h"
#include "zclient.h"
#include "frr_pthread.h"
#include "sharpd/sharp_vty.h"
/* this is quite hacky, but then again it's a test tool and it does its job. */
static struct frr_pthread *lpt;
static unsigned long lp_duration;
static unsigned lp_frequency;
static unsigned lp_burst;
static size_t lp_ctr, lp_expect;
static struct rusage lp_rusage;
static struct vty *lp_vty;
extern struct event_loop *master;
static void logpump_done(struct event *thread)
{
double x;
vty_out(lp_vty, "\nlogpump done\n");
vty_out(lp_vty, "%9zu messages written\n", lp_ctr);
x = (double)lp_ctr / (double)lp_expect * 100.;
vty_out(lp_vty, "%9zu messages targeted = %5.1lf%%\n", lp_expect, x);
x = lp_rusage.ru_utime.tv_sec * 1000000 + lp_rusage.ru_utime.tv_usec;
x /= (double)lp_ctr;
vty_out(lp_vty, "%6llu.%06u usr %9.1lfns/msg\n",
(unsigned long long)lp_rusage.ru_utime.tv_sec,
(unsigned)lp_rusage.ru_utime.tv_usec, x * 1000.);
x = lp_rusage.ru_stime.tv_sec * 1000000 + lp_rusage.ru_stime.tv_usec;
x /= (double)lp_ctr;
vty_out(lp_vty, "%6llu.%06u sys %9.1lfns/msg\n",
(unsigned long long)lp_rusage.ru_stime.tv_sec,
(unsigned)lp_rusage.ru_stime.tv_usec, x * 1000.);
frr_pthread_stop(lpt, NULL);
frr_pthread_destroy(lpt);
lpt = NULL;
}
static void *logpump_run(void *arg)
{
struct timespec start, next, now;
unsigned long delta, period;
period = 1000000000L / lp_frequency;
zlog_tls_buffer_init();
clock_gettime(CLOCK_MONOTONIC, &start);
next = start;
do {
for (size_t inburst = 0; inburst < lp_burst; inburst++)
zlog_debug("log pump: %zu (burst %zu)",
lp_ctr++, inburst);
clock_gettime(CLOCK_MONOTONIC, &now);
delta = (now.tv_sec - start.tv_sec) * 1000000000L
+ (now.tv_nsec - start.tv_nsec);
next.tv_nsec += period;
if (next.tv_nsec > 1000000000L) {
next.tv_sec++;
next.tv_nsec -= 1000000000L;
}
#ifdef HAVE_CLOCK_NANOSLEEP
clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &next, NULL);
#else
struct timespec slpdur;
slpdur.tv_sec = next.tv_sec - now.tv_sec;
slpdur.tv_nsec = next.tv_nsec - now.tv_nsec;
if (slpdur.tv_nsec < 0) {
slpdur.tv_sec--;
slpdur.tv_nsec += 1000000000L;
}
nanosleep(&slpdur, NULL);
#endif
} while (delta < lp_duration);
zlog_tls_buffer_fini();
#ifdef RUSAGE_THREAD
getrusage(RUSAGE_THREAD, &lp_rusage);
#else
getrusage(RUSAGE_SELF, &lp_rusage);
#endif
event_add_timer_msec(master, logpump_done, NULL, 0, NULL);
return NULL;
}
static int logpump_halt(struct frr_pthread *fpt, void **res)
{
return 0;
}
/* default frr_pthread attributes */
static const struct frr_pthread_attr attr = {
.start = logpump_run,
.stop = logpump_halt,
};
void sharp_logpump_run(struct vty *vty, unsigned duration, unsigned frequency,
unsigned burst)
{
if (lpt != NULL) {
vty_out(vty, "logpump already running\n");
return;
}
vty_out(vty, "starting logpump...\n");
vty_out(vty, "keep this VTY open and press Enter to see results\n");
lp_vty = vty;
lp_duration = duration * 1000000000UL;
lp_frequency = frequency;
lp_burst = burst;
lp_expect = duration * frequency * burst;
lp_ctr = 0;
lpt = frr_pthread_new(&attr, "logpump", "logpump");
frr_pthread_run(lpt, NULL);
}
|
