2 * netsniff-ng - the packet sniffing beast
3 * Copyright 2009 - 2013 Daniel Borkmann.
4 * Copyright 2013 Tobias Klauser
5 * Subject to the GPL, version 2.
13 #include <sys/socket.h>
14 #include <sys/fsuid.h>
15 #include <sys/types.h>
16 #include <sys/utsname.h>
37 int16_t link_qual
, link_qual_max
;
38 int signal_level
/*, noise_level*/;
42 long long unsigned int rx_bytes
, rx_packets
, rx_drops
, rx_errors
;
43 long long unsigned int rx_fifo
, rx_frame
, rx_multi
;
44 long long unsigned int tx_bytes
, tx_packets
, tx_drops
, tx_errors
;
45 long long unsigned int tx_fifo
, tx_colls
, tx_carrier
;
46 uint64_t mem_free
, mem_total
, mem_active
, mem_inactive
;
47 uint64_t swap_total
, swap_free
, swap_cached
;
48 uint32_t procs_total
, procs_run
, procs_iow
, cswitch
;
49 struct wifi_stat wifi
;
51 * Pointer members need to be last in order for stats_zero() to work
54 long long unsigned int *irqs
, *irqs_srx
, *irqs_stx
;
55 uint64_t *cpu_user
, *cpu_sys
, *cpu_nice
, *cpu_idle
, *cpu_iow
;
61 long long unsigned int irqs_rel
, irqs_abs
;
65 uint64_t cpu_user
, cpu_sys
, cpu_nice
, cpu_idle
, cpu_iow
;
66 long double irqs_abs
, irqs_rel
, irqs_srx_rel
, irqs_stx_rel
;
69 static volatile sig_atomic_t sigint
= 0;
70 static struct ifstat stats_old
, stats_new
, stats_delta
;
71 static struct cpu_hit
*cpu_hits
;
72 static struct avg_stat stats_avg
;
73 static int stats_loop
= 0;
74 static int show_median
= 0, show_percentage
= 0;
75 static WINDOW
*stats_screen
= NULL
;
76 static struct utsname uts
;
78 static const char *short_options
= "d:n:t:clmpPWvh";
79 static const struct option long_options
[] = {
80 {"dev", required_argument
, NULL
, 'd'},
81 {"num-cpus", required_argument
, NULL
, 'n'},
82 {"interval", required_argument
, NULL
, 't'},
83 {"csv", no_argument
, NULL
, 'c'},
84 {"loop", no_argument
, NULL
, 'l'},
85 {"median", no_argument
, NULL
, 'm'},
86 {"promisc", no_argument
, NULL
, 'p'},
87 {"percentage", no_argument
, NULL
, 'P'},
88 {"no-warn", no_argument
, NULL
, 'W'},
89 {"version", no_argument
, NULL
, 'v'},
90 {"help", no_argument
, NULL
, 'h'},
94 static void signal_handler(int number
)
106 static inline int iswireless(const struct ifstat
*stats
)
108 return stats
->wifi
.bitrate
> 0;
111 static void __noreturn
help(void)
113 printf("\nifpps %s, top-like kernel networking and system statistics\n",
115 puts("http://www.netsniff-ng.org\n\n"
116 "Usage: ifpps [options] || ifpps <netdev>\n"
118 " -d|--dev <netdev> Device to fetch statistics for e.g., eth0\n"
119 " -n|--num-cpus <num> Number of top hitter CPUs in ncurses mode (def: 5)\n"
120 " -t|--interval <time> Refresh time in ms (default 1000 ms)\n"
121 " -c|--csv Output to terminal as Gnuplot-ready data\n"
122 " -l|--loop Continuous CSV output\n"
123 " -m|--median Display median values\n"
124 " -p|--promisc Promiscuous mode\n"
125 " -P|--percentage Show percentage of theoretical line rate\n"
126 " -W|--no-warn Suppress warnings\n"
127 " -v|--version Print version and exit\n"
128 " -h|--help Print this help and exit\n\n"
132 " ifpps -lpcd wlan0 > plot.dat\n\n"
134 " On 10G cards, RX/TX statistics are usually accumulated each > 1sec.\n"
135 " Thus, in those situations, it's good to use a -t of 10sec.\n\n"
136 "Please report bugs to <bugs@netsniff-ng.org>\n"
137 "Copyright (C) 2009-2013 Daniel Borkmann <dborkma@tik.ee.ethz.ch>\n"
138 "Swiss federal institute of technology (ETH Zurich)\n"
139 "Copyright (C) 2013 Tobias Klauser <tklauser@distanz.ch>\n"
140 "License: GNU GPL version 2.0\n"
141 "This is free software: you are free to change and redistribute it.\n"
142 "There is NO WARRANTY, to the extent permitted by law.\n");
146 static void __noreturn
version(void)
148 printf("\nifpps %s, Git id: %s\n", VERSION_LONG
, GITVERSION
);
149 puts("top-like kernel networking and system statistics\n"
150 "http://www.netsniff-ng.org\n\n"
151 "Please report bugs to <bugs@netsniff-ng.org>\n"
152 "Copyright (C) 2009-2013 Daniel Borkmann <dborkma@tik.ee.ethz.ch>\n"
153 "Swiss federal institute of technology (ETH Zurich)\n"
154 "Copyright (C) 2013 Tobias Klauser <tklauser@distanz.ch>\n"
155 "License: GNU GPL version 2.0\n"
156 "This is free software: you are free to change and redistribute it.\n"
157 "There is NO WARRANTY, to the extent permitted by law.\n");
161 static inline int padding_from_num(int n
)
166 } while ((n
/= 10) > 0);
170 #define STATS_ALLOC1(member) \
171 do { stats->member = xzmalloc(cpus * sizeof(*(stats->member))); } while (0)
173 static void stats_alloc(struct ifstat
*stats
, unsigned int cpus
)
176 STATS_ALLOC1(irqs_srx
);
177 STATS_ALLOC1(irqs_stx
);
179 STATS_ALLOC1(cpu_user
);
180 STATS_ALLOC1(cpu_sys
);
181 STATS_ALLOC1(cpu_nice
);
182 STATS_ALLOC1(cpu_idle
);
183 STATS_ALLOC1(cpu_iow
);
186 #define STATS_ZERO1(member) \
187 do { memset(stats->member, 0, cpus * sizeof(*(stats->member))); } while (0)
189 static void stats_zero(struct ifstat
*stats
, unsigned int cpus
)
191 /* Only clear the non-pointer members */
192 memset(stats
, 0, offsetof(struct ifstat
, irqs
));
195 STATS_ZERO1(irqs_srx
);
196 STATS_ZERO1(irqs_stx
);
198 STATS_ZERO1(cpu_user
);
199 STATS_ZERO1(cpu_sys
);
200 STATS_ZERO1(cpu_nice
);
201 STATS_ZERO1(cpu_idle
);
202 STATS_ZERO1(cpu_iow
);
205 #define STATS_RELEASE(member) \
206 do { xfree(stats->member); } while (0)
208 static void stats_release(struct ifstat
*stats
)
211 STATS_RELEASE(irqs_srx
);
212 STATS_RELEASE(irqs_stx
);
214 STATS_RELEASE(cpu_user
);
215 STATS_RELEASE(cpu_sys
);
216 STATS_RELEASE(cpu_nice
);
217 STATS_RELEASE(cpu_idle
);
218 STATS_RELEASE(cpu_iow
);
221 static int stats_proc_net_dev(const char *ifname
, struct ifstat
*stats
)
227 fp
= fopen("/proc/net/dev", "r");
229 panic("Cannot open /proc/net/dev!\n");
231 if (fgets(buff
, sizeof(buff
), fp
)) { ; }
232 if (fgets(buff
, sizeof(buff
), fp
)) { ; }
234 memset(buff
, 0, sizeof(buff
));
236 while (fgets(buff
, sizeof(buff
), fp
) != NULL
) {
237 buff
[sizeof(buff
) -1] = 0;
239 if (strstr(buff
, ifname
) == NULL
)
242 if (sscanf(buff
, "%*[a-z0-9 .-]:%llu%llu%llu%llu%llu%llu"
243 "%llu%*u%llu%llu%llu%llu%llu%llu%llu",
244 &stats
->rx_bytes
, &stats
->rx_packets
,
245 &stats
->rx_errors
, &stats
->rx_drops
,
246 &stats
->rx_fifo
, &stats
->rx_frame
,
247 &stats
->rx_multi
, &stats
->tx_bytes
,
248 &stats
->tx_packets
, &stats
->tx_errors
,
249 &stats
->tx_drops
, &stats
->tx_fifo
,
250 &stats
->tx_colls
, &stats
->tx_carrier
) == 14) {
255 memset(buff
, 0, sizeof(buff
));
262 static int stats_proc_interrupts(char *ifname
, struct ifstat
*stats
)
264 int ret
= -EINVAL
, try = 0;
265 unsigned int i
, cpus
;
269 struct ethtool_drvinfo drvinf
;
272 fp
= fopen("/proc/interrupts", "r");
274 panic("Cannot open /proc/interrupts!\n");
276 cpus
= get_number_cpus();
277 buff_len
= cpus
* 128;
278 buff
= xmalloc(buff_len
);
280 fseek(fp
, 0, SEEK_SET
);
281 memset(buff
, 0, buff_len
);
283 while (fgets(buff
, buff_len
, fp
) != NULL
) {
284 buff
[buff_len
- 1] = 0;
286 if (strstr(buff
, ifname
) == NULL
)
289 ptr
= strchr(buff
, ':');
294 for (i
= 0; i
< cpus
&& ptr
; ++i
) {
296 stats
->irqs
[i
] += strtol(ptr
, &ptr
, 10);
298 stats
->irqs
[i
] = strtol(ptr
, &ptr
, 10);
305 memset(buff
, 0, buff_len
);
308 if (ret
== -EINVAL
&& try == 0) {
309 memset(&drvinf
, 0, sizeof(drvinf
));
310 if (ethtool_drvinf(ifname
, &drvinf
) < 0)
313 ifname
= drvinf
.driver
;
324 static int stats_proc_softirqs(struct ifstat
*stats
)
326 unsigned int i
, cpus
;
335 fp
= fopen("/proc/softirqs", "r");
337 panic("Cannot open /proc/softirqs!\n");
339 cpus
= get_number_cpus();
340 buff_len
= cpus
* 128;
341 buff
= xmalloc(buff_len
);
343 memset(buff
, 0, buff_len
);
345 while (fgets(buff
, buff_len
, fp
) != NULL
) {
346 buff
[buff_len
- 1] = 0;
348 if ((ptr
= strstr(buff
, "NET_TX:")))
349 net_type
= softirqs_net_tx
;
350 else if ((ptr
= strstr(buff
, "NET_RX:")))
351 net_type
= softirqs_net_rx
;
355 for (ptr
+= strlen("NET_xX:"), i
= 0; i
< cpus
; ++i
) {
357 case softirqs_net_tx
:
358 stats
->irqs_stx
[i
] = strtol(ptr
, &ptr
, 10);
360 case softirqs_net_rx
:
361 stats
->irqs_srx
[i
] = strtol(ptr
, &ptr
, 10);
366 memset(buff
, 0, buff_len
);
374 static int stats_proc_memory(struct ifstat
*stats
)
376 char *ptr
, buff
[256];
379 fp
= fopen("/proc/meminfo", "r");
381 panic("Cannot open /proc/meminfo!\n");
383 memset(buff
, 0, sizeof(buff
));
385 while (fgets(buff
, sizeof(buff
), fp
) != NULL
) {
386 buff
[sizeof(buff
) - 1] = 0;
388 if ((ptr
= strstr(buff
, "MemTotal:"))) {
389 ptr
+= strlen("MemTotal:");
390 stats
->mem_total
= strtoul(ptr
, &ptr
, 10);
391 } else if ((ptr
= strstr(buff
, "MemFree:"))) {
392 ptr
+= strlen("MemFree:");
393 stats
->mem_free
= strtoul(ptr
, &ptr
, 10);
394 } else if ((ptr
= strstr(buff
, "Active:"))) {
395 ptr
+= strlen("Active:");
396 stats
->mem_active
= strtoul(ptr
, &ptr
, 10);
397 } else if ((ptr
= strstr(buff
, "Inactive:"))) {
398 ptr
+= strlen("Inactive:");
399 stats
->mem_inactive
= strtoul(ptr
, &ptr
, 10);
400 } else if ((ptr
= strstr(buff
, "SwapTotal:"))) {
401 ptr
+= strlen("SwapTotal:");
402 stats
->swap_total
= strtoul(ptr
, &ptr
, 10);
403 } else if ((ptr
= strstr(buff
, "SwapFree:"))) {
404 ptr
+= strlen("SwapFree:");
405 stats
->swap_free
= strtoul(ptr
, &ptr
, 10);
406 } else if ((ptr
= strstr(buff
, "SwapCached:"))) {
407 ptr
+= strlen("SwapCached:");
408 stats
->swap_cached
= strtoul(ptr
, &ptr
, 10);
411 memset(buff
, 0, sizeof(buff
));
418 static int stats_proc_system(struct ifstat
*stats
)
420 unsigned int cpu
, cpus
;
421 char *ptr
, buff
[256];
424 fp
= fopen("/proc/stat", "r");
426 panic("Cannot open /proc/stat!\n");
428 cpus
= get_number_cpus();
430 memset(buff
, 0, sizeof(buff
));
432 while (fgets(buff
, sizeof(buff
), fp
) != NULL
) {
433 buff
[sizeof(buff
) - 1] = 0;
435 if ((ptr
= strstr(buff
, "cpu"))) {
436 ptr
+= strlen("cpu");
440 cpu
= strtol(ptr
, &ptr
, 10);
443 if (sscanf(ptr
, "%lu%lu%lu%lu%lu",
444 &stats
->cpu_user
[cpu
],
445 &stats
->cpu_nice
[cpu
],
446 &stats
->cpu_sys
[cpu
],
447 &stats
->cpu_idle
[cpu
],
448 &stats
->cpu_iow
[cpu
]) != 5)
450 } else if ((ptr
= strstr(buff
, "ctxt"))) {
451 ptr
+= strlen("ctxt");
452 stats
->cswitch
= strtoul(ptr
, &ptr
, 10);
453 } else if ((ptr
= strstr(buff
, "procs_running"))) {
454 ptr
+= strlen("procs_running");
455 stats
->procs_run
= strtoul(ptr
, &ptr
, 10);
456 } else if ((ptr
= strstr(buff
, "procs_blocked"))) {
457 ptr
+= strlen("procs_blocked");
458 stats
->procs_iow
= strtoul(ptr
, &ptr
, 10);
461 memset(buff
, 0, sizeof(buff
));
468 static int stats_proc_procs(struct ifstat
*stats
)
473 dir
= opendir("/proc");
475 panic("Cannot open /proc\n");
477 stats
->procs_total
= 0;
479 while ((e
= readdir(dir
)) != NULL
) {
480 const char *name
= e
->d_name
;
482 unsigned int pid
= strtoul(name
, &end
, 10);
485 if (pid
== 0 && end
== name
)
488 stats
->procs_total
++;
496 static int adjust_dbm_level(int in_dbm
, int dbm_val
)
501 return dbm_val
- 0x100;
504 static int stats_wireless(const char *ifname
, struct ifstat
*stats
)
507 struct iw_statistics ws
;
509 ret
= wireless_sigqual(ifname
, &ws
);
511 stats
->wifi
.bitrate
= 0;
515 stats
->wifi
.bitrate
= wireless_bitrate(ifname
);
517 stats
->wifi
.signal_level
=
518 adjust_dbm_level(ws
.qual
.updated
& IW_QUAL_DBM
, ws
.qual
.level
);
520 stats
->wifi
.link_qual
= ws
.qual
.qual
;
521 stats
->wifi
.link_qual_max
= wireless_rangemax_sigqual(ifname
);
526 #define DIFF1(member) do { diff->member = new->member - old->member; } while (0)
527 #define DIFF(member) do { \
528 if (sizeof(diff->member) != sizeof(new->member) || \
529 sizeof(diff->member) != sizeof(old->member)) \
531 if ((new->member - old->member) > (new->member)) { \
538 static void stats_diff(struct ifstat
*old
, struct ifstat
*new,
541 unsigned int cpus
, i
;
559 DIFF1(wifi
.signal_level
);
560 DIFF1(wifi
.link_qual
);
564 cpus
= get_number_cpus();
566 for (i
= 0; i
< cpus
; ++i
) {
579 static void stats_fetch(const char *ifname
, struct ifstat
*stats
)
581 if (stats_proc_net_dev(ifname
, stats
) < 0)
582 panic("Cannot fetch device stats!\n");
583 if (stats_proc_softirqs(stats
) < 0)
584 panic("Cannot fetch software interrupts!\n");
585 if (stats_proc_memory(stats
) < 0)
586 panic("Cannot fetch memory stats!\n");
587 if (stats_proc_system(stats
) < 0)
588 panic("Cannot fetch system stats!\n");
589 if (stats_proc_procs(stats
) < 0)
590 panic("Cannot fetch process stats!\n");
592 stats_proc_interrupts((char *) ifname
, stats
);
594 stats_wireless(ifname
, stats
);
597 static void stats_sample_generic(const char *ifname
, uint64_t ms_interval
)
599 unsigned int cpus
= get_number_cpus();
601 stats_zero(&stats_old
, cpus
);
602 stats_zero(&stats_new
, cpus
);
603 stats_zero(&stats_delta
, cpus
);
605 stats_fetch(ifname
, &stats_old
);
606 usleep(ms_interval
* 1000);
607 stats_fetch(ifname
, &stats_new
);
609 stats_diff(&stats_old
, &stats_new
, &stats_delta
);
612 static int cmp_hits(const void *p1
, const void *p2
)
614 const struct cpu_hit
*h1
= p1
, *h2
= p2
;
617 * We want the hits sorted in descending order, thus reverse the return
620 if (h1
->hit
== h2
->hit
)
622 else if (h1
->hit
< h2
->hit
)
628 static int cmp_irqs_rel(const void *p1
, const void *p2
)
630 const struct cpu_hit
*h1
= p1
, *h2
= p2
;
633 * We want the hits sorted in descending order, thus reverse the return
636 if (h1
->irqs_rel
== h2
->irqs_rel
)
638 else if (h1
->irqs_rel
< h2
->irqs_rel
)
644 static int cmp_irqs_abs(const void *p1
, const void *p2
)
646 const struct cpu_hit
*h1
= p1
, *h2
= p2
;
649 * We want the hits sorted in descending order, thus reverse the return
652 if (h1
->irqs_abs
== h2
->irqs_abs
)
654 else if (h1
->irqs_abs
< h2
->irqs_abs
)
660 static void stats_top(const struct ifstat
*rel
, const struct ifstat
*abs
,
665 memset(&stats_avg
, 0, sizeof(stats_avg
));
667 for (i
= 0; i
< cpus
; ++i
) {
669 cpu_hits
[i
].hit
= rel
->cpu_user
[i
] + rel
->cpu_nice
[i
] + rel
->cpu_sys
[i
];
670 cpu_hits
[i
].irqs_rel
= rel
->irqs
[i
];
671 cpu_hits
[i
].irqs_abs
= abs
->irqs
[i
];
673 stats_avg
.cpu_user
+= rel
->cpu_user
[i
];
674 stats_avg
.cpu_sys
+= rel
->cpu_sys
[i
];
675 stats_avg
.cpu_nice
+= rel
->cpu_nice
[i
];
676 stats_avg
.cpu_idle
+= rel
->cpu_idle
[i
];
677 stats_avg
.cpu_iow
+= rel
->cpu_iow
[i
];
679 stats_avg
.irqs_abs
+= abs
->irqs
[i
];
680 stats_avg
.irqs_rel
+= rel
->irqs
[i
];
681 stats_avg
.irqs_srx_rel
+= rel
->irqs_srx
[i
];
682 stats_avg
.irqs_stx_rel
+= rel
->irqs_stx
[i
];
685 stats_avg
.cpu_user
/= cpus
;
686 stats_avg
.cpu_sys
/= cpus
;
687 stats_avg
.cpu_nice
/= cpus
;
688 stats_avg
.cpu_idle
/= cpus
;
689 stats_avg
.cpu_iow
/= cpus
;
690 stats_avg
.irqs_abs
/= cpus
;
691 stats_avg
.irqs_rel
/= cpus
;
692 stats_avg
.irqs_srx_rel
/= cpus
;
693 stats_avg
.irqs_stx_rel
/= cpus
;
696 static void screen_header(WINDOW
*screen
, const char *ifname
, int *voff
,
697 u32 rate
, uint64_t ms_interval
, unsigned int top_cpus
)
700 char buff
[64], machine
[64];
701 struct ethtool_drvinfo drvinf
;
702 int link
= ethtool_link(ifname
);
703 unsigned int cpus
= get_number_cpus();
705 memset(&drvinf
, 0, sizeof(drvinf
));
706 ethtool_drvinf(ifname
, &drvinf
);
708 memset(buff
, 0, sizeof(buff
));
709 memset(machine
, 0, sizeof(machine
));
712 len
+= snprintf(buff
+ len
, sizeof(buff
) - len
, " %uMbit/s", rate
);
714 len
+= snprintf(buff
+ len
, sizeof(buff
) - len
, " link:%s",
715 link
== 0 ? "no" : "yes");
717 if (!strstr(uts
.release
, uts
.machine
))
718 slprintf(machine
, sizeof(machine
), " %s,", uts
.machine
);
720 mvwprintw(screen
, (*voff
)++, 2,
721 "%s,%s %s (%s%s), t=%lums, cpus=%u%s/%u"
722 " ", uts
.release
, machine
,
723 ifname
, drvinf
.driver
, buff
, ms_interval
, top_cpus
,
724 top_cpus
> 0 && top_cpus
< cpus
? "+1" : "", cpus
);
727 static void screen_net_dev_rel(WINDOW
*screen
, const struct ifstat
*rel
,
732 mvwprintw(screen
, (*voff
)++, 0,
733 " rx: %16.3llf MiB/t "
737 ((long double) rel
->rx_bytes
) / (1LLU << 20),
738 rel
->rx_packets
, rel
->rx_drops
, rel
->rx_errors
);
740 mvwprintw(screen
, (*voff
)++, 0,
741 " tx: %16.3llf MiB/t "
745 ((long double) rel
->tx_bytes
) / (1LLU << 20),
746 rel
->tx_packets
, rel
->tx_drops
, rel
->tx_errors
);
751 static void screen_net_dev_percentage(WINDOW
*screen
, const struct ifstat
*rel
,
754 mvwprintw(screen
, (*voff
)++, 0,
755 " rx: %15.2llf%% of line rate "
757 rate
? ((((long double) rel
->rx_bytes
) / (1LLU << 20)) / rate
) * 100.0 : 0.0);
759 mvwprintw(screen
, (*voff
)++, 0,
760 " tx: %15.2llf%% of line rate "
762 rate
? ((((long double) rel
->tx_bytes
) / (1LLU << 20)) / rate
) * 100.0 : 0.0);
765 static void screen_net_dev_abs(WINDOW
*screen
, const struct ifstat
*abs
,
768 mvwprintw(screen
, (*voff
)++, 2,
773 ((long double) abs
->rx_bytes
) / (1LLU << 20),
774 abs
->rx_packets
, abs
->rx_drops
, abs
->rx_errors
);
776 mvwprintw(screen
, (*voff
)++, 2,
781 ((long double) abs
->tx_bytes
) / (1LLU << 20),
782 abs
->tx_packets
, abs
->tx_drops
, abs
->tx_errors
);
785 static void screen_sys(WINDOW
*screen
, const struct ifstat
*rel
,
786 const struct ifstat
*abs
, int *voff
)
788 mvwprintw(screen
, (*voff
)++, 2,
793 rel
->cswitch
, abs
->procs_total
, abs
->procs_run
, abs
->procs_iow
);
796 static void screen_mem_swap(WINDOW
*screen
, const struct ifstat
*abs
, int *voff
)
798 mvwprintw(screen
, (*voff
)++, 2,
803 abs
->mem_total
/ 1024,
804 (abs
->mem_total
- abs
->mem_free
) / 1024,
805 abs
->mem_active
/ 1024,
806 abs
->mem_inactive
/ 1024);
808 mvwprintw(screen
, (*voff
)++, 2,
812 abs
->swap_total
/ 1024,
813 (abs
->swap_total
- abs
->swap_free
) / 1024,
814 abs
->swap_cached
/ 1024);
817 static void screen_percpu_states_one(WINDOW
*screen
, const struct ifstat
*rel
,
818 int *voff
, unsigned int idx
, char *tag
)
820 int max_padd
= padding_from_num(get_number_cpus());
821 uint64_t all
= rel
->cpu_user
[idx
] + rel
->cpu_nice
[idx
] + rel
->cpu_sys
[idx
] +
822 rel
->cpu_idle
[idx
] + rel
->cpu_iow
[idx
];
824 mvwprintw(screen
, (*voff
)++, 2,
825 "cpu%*d %s: %11.1lf%% usr/t "
830 100.0 * (rel
->cpu_user
[idx
] + rel
->cpu_nice
[idx
]) / all
,
831 100.0 * rel
->cpu_sys
[idx
] / all
,
832 100.0 * rel
->cpu_idle
[idx
] / all
,
833 100.0 * rel
->cpu_iow
[idx
] / all
);
836 #define MEDIAN_EVEN(member) do { \
837 m_##member = (rel->member[i] + rel->member[j]) / 2.0; \
840 #define MEDIAN_ODD(member) do { \
841 m_##member = rel->member[i]; \
844 static void screen_percpu_states(WINDOW
*screen
, const struct ifstat
*rel
,
845 const struct avg_stat
*avg
,
846 unsigned int top_cpus
, int *voff
)
849 unsigned int cpus
= get_number_cpus();
850 int max_padd
= padding_from_num(cpus
);
856 /* Display top hitter */
857 screen_percpu_states_one(screen
, rel
, voff
, cpu_hits
[0].idx
, "+");
859 /* Make sure we don't display the min. hitter twice */
860 if (top_cpus
== cpus
)
863 for (i
= 1; i
< top_cpus
; ++i
)
864 screen_percpu_states_one(screen
, rel
, voff
, cpu_hits
[i
].idx
, "|");
866 /* Display minimum hitter */
868 screen_percpu_states_one(screen
, rel
, voff
, cpu_hits
[cpus
- 1].idx
, "-");
870 all
= avg
->cpu_user
+ avg
->cpu_sys
+ avg
->cpu_nice
+ avg
->cpu_idle
+ avg
->cpu_iow
;
871 mvwprintw(screen
, (*voff
)++, 2,
875 "%11.1lf%%", max_padd
, "",
876 100.0 * (avg
->cpu_user
+ avg
->cpu_nice
) / all
,
877 100.0 * avg
->cpu_sys
/ all
,
878 100.0 * avg
->cpu_idle
/all
,
879 100.0 * avg
->cpu_iow
/ all
);
882 long double m_cpu_user
, m_cpu_nice
, m_cpu_sys
, m_cpu_idle
, m_cpu_iow
;
885 i
= cpu_hits
[cpus
/ 2].idx
;
887 /* take the mean of the 2 middle entries */
888 int j
= cpu_hits
[(cpus
/ 2) - 1].idx
;
890 MEDIAN_EVEN(cpu_user
);
891 MEDIAN_EVEN(cpu_nice
);
892 MEDIAN_EVEN(cpu_sys
);
893 MEDIAN_EVEN(cpu_idle
);
894 MEDIAN_EVEN(cpu_iow
);
896 /* take the middle entry as is */
897 MEDIAN_ODD(cpu_user
);
898 MEDIAN_ODD(cpu_nice
);
900 MEDIAN_ODD(cpu_idle
);
904 m_all
= m_cpu_user
+ m_cpu_sys
+ m_cpu_nice
+ m_cpu_idle
+ m_cpu_iow
;
905 mvwprintw(screen
, (*voff
)++, 2,
909 "%11.1Lf%%", max_padd
, "",
910 100.0 * (m_cpu_user
+ m_cpu_nice
) / m_all
,
911 100.0 * m_cpu_sys
/ m_all
,
912 100.0 * m_cpu_idle
/m_all
,
913 100.0 * m_cpu_iow
/ m_all
);
917 static void screen_percpu_irqs_rel_one(WINDOW
*screen
, const struct ifstat
*rel
,
918 int *voff
, unsigned int idx
, char *tag
)
920 int max_padd
= padding_from_num(get_number_cpus());
922 mvwprintw(screen
, (*voff
)++, 2,
923 "cpu%*d %s: %12llu irqs/t "
932 static void screen_percpu_irqs_rel(WINDOW
*screen
, const struct ifstat
*rel
,
933 const struct avg_stat
*avg
,
934 unsigned int top_cpus
, int *voff
)
937 unsigned int cpus
= get_number_cpus();
938 int max_padd
= padding_from_num(cpus
);
940 screen_percpu_irqs_rel_one(screen
, rel
, voff
, cpu_hits
[0].idx
, "+");
942 if (top_cpus
== cpus
)
945 for (i
= 1; i
< top_cpus
; ++i
)
946 screen_percpu_irqs_rel_one(screen
, rel
, voff
, cpu_hits
[i
].idx
, "|");
949 screen_percpu_irqs_rel_one(screen
, rel
, voff
, cpu_hits
[cpus
- 1].idx
, "-");
951 mvwprintw(screen
, (*voff
)++, 2,
954 "%17.1Lf", max_padd
, "",
955 avg
->irqs_rel
, avg
->irqs_srx_rel
, avg
->irqs_stx_rel
);
958 long double m_irqs
, m_irqs_srx
, m_irqs_stx
;
960 i
= cpu_hits
[cpus
/ 2].idx
;
962 /* take the mean of the 2 middle entries */
963 int j
= cpu_hits
[(cpus
/ 2) - 1].idx
;
966 MEDIAN_EVEN(irqs_srx
);
967 MEDIAN_EVEN(irqs_stx
);
969 /* take the middle entry as is */
971 MEDIAN_ODD(irqs_srx
);
972 MEDIAN_ODD(irqs_stx
);
975 mvwprintw(screen
, (*voff
)++, 2,
978 "%17.1Lf", max_padd
, "",
979 m_irqs
, m_irqs_srx
, m_irqs_stx
);
983 static void screen_percpu_irqs_abs_one(WINDOW
*screen
, const struct ifstat
*abs
,
984 int *voff
, unsigned int idx
, char *tag
)
986 int max_padd
= padding_from_num(get_number_cpus());
988 mvwprintw(screen
, (*voff
)++, 2,
989 "cpu%*d %s: %12llu irqs",
990 max_padd
, idx
, tag
, abs
->irqs
[idx
]);
993 static void screen_percpu_irqs_abs(WINDOW
*screen
, const struct ifstat
*abs
,
994 const struct avg_stat
*avg
,
995 unsigned int top_cpus
, int *voff
)
998 unsigned int cpus
= get_number_cpus();
999 int max_padd
= padding_from_num(cpus
);
1001 screen_percpu_irqs_abs_one(screen
, abs
, voff
, cpu_hits
[0].idx
, "+");
1003 if (top_cpus
== cpus
)
1006 for (i
= 1; i
< top_cpus
; ++i
)
1007 screen_percpu_irqs_abs_one(screen
, abs
, voff
, cpu_hits
[i
].idx
, "|");
1010 screen_percpu_irqs_abs_one(screen
, abs
, voff
, cpu_hits
[cpus
- 1].idx
, "-");
1012 mvwprintw(screen
, (*voff
)++, 2,
1013 "avg:%*s%17.1Lf", max_padd
, "", avg
->irqs_abs
);
1018 i
= cpu_hits
[cpus
/ 2].idx
;
1019 if (cpus
% 2 == 0) {
1020 /* take the mean of the 2 middle entries */
1021 int j
= cpu_hits
[(cpus
/ 2) - 1].idx
;
1023 m_irqs
= (abs
->irqs
[i
] + abs
->irqs
[j
]) / 2;
1025 /* take the middle entry as is */
1026 m_irqs
= abs
->irqs
[i
];
1029 mvwprintw(screen
, (*voff
)++, 2,
1030 "med:%*s%17.1Lf", max_padd
, "", m_irqs
);
1034 static void screen_wireless(WINDOW
*screen
, const struct ifstat
*rel
,
1035 const struct ifstat
*abs
, int *voff
)
1037 if (iswireless(abs
)) {
1038 mvwprintw(screen
, (*voff
)++, 2,
1039 "linkqual: %7d/%d (%d/t) ",
1040 abs
->wifi
.link_qual
,
1041 abs
->wifi
.link_qual_max
,
1042 rel
->wifi
.link_qual
);
1044 mvwprintw(screen
, (*voff
)++, 2,
1045 "signal: %8d dBm (%d dBm/t) ",
1046 abs
->wifi
.signal_level
,
1047 rel
->wifi
.signal_level
);
1051 static void screen_update(WINDOW
*screen
, const char *ifname
, const struct ifstat
*rel
,
1052 const struct ifstat
*abs
, const struct avg_stat
*avg
,
1053 int *first
, uint64_t ms_interval
, unsigned int top_cpus
,
1056 unsigned int cpus
, top
;
1057 int voff
= 1, cvoff
= 2;
1058 u32 rate
= device_bitrate(ifname
);
1062 cpus
= get_number_cpus();
1063 top
= min(cpus
, top_cpus
);
1065 stats_top(rel
, abs
, cpus
);
1067 qsort(cpu_hits
, cpus
, sizeof(*cpu_hits
), cmp_hits
);
1069 screen_header(screen
, ifname
, &voff
, rate
, ms_interval
, top_cpus
);
1072 screen_net_dev_rel(screen
, rel
, &voff
);
1074 if (show_percentage
) {
1076 screen_net_dev_percentage(screen
, rel
, &voff
, rate
);
1080 screen_net_dev_abs(screen
, abs
, &voff
);
1083 screen_sys(screen
, rel
, abs
, &voff
);
1086 screen_mem_swap(screen
, abs
, &voff
);
1089 screen_percpu_states(screen
, rel
, avg
, top
, &voff
);
1091 qsort(cpu_hits
, cpus
, sizeof(*cpu_hits
), cmp_irqs_rel
);
1094 screen_percpu_irqs_rel(screen
, rel
, avg
, top
, &voff
);
1096 qsort(cpu_hits
, cpus
, sizeof(*cpu_hits
), cmp_irqs_abs
);
1099 screen_percpu_irqs_abs(screen
, abs
, avg
, top
, &voff
);
1102 screen_wireless(screen
, rel
, abs
, &voff
);
1105 mvwprintw(screen
, cvoff
, 2, "Collecting data ...");
1109 mvwprintw(screen
, cvoff
, 2, "(consider to increase "
1110 "your sampling interval, e.g. -t %d)",
1111 rate
> SPEED_1000
? 10000 : 1000);
1113 mvwprintw(screen
, cvoff
, 2, " "
1121 static int screen_main(const char *ifname
, uint64_t ms_interval
,
1122 unsigned int top_cpus
, bool suppress_warnings
)
1125 u32 rate
= device_bitrate(ifname
);
1126 bool need_info
= false;
1128 stats_screen
= screen_init(true);
1130 if (((rate
> SPEED_1000
&& ms_interval
<= 1000) ||
1131 (rate
= SPEED_1000
&& ms_interval
< 1000)) &&
1137 if (key
== 'q' || key
== 0x1b || key
== KEY_F(10))
1140 screen_update(stats_screen
, ifname
, &stats_delta
, &stats_new
, &stats_avg
,
1141 &first
, ms_interval
, top_cpus
, need_info
);
1143 stats_sample_generic(ifname
, ms_interval
);
1151 static void term_csv(const struct ifstat
*rel
, const struct ifstat
*abs
)
1153 unsigned int cpus
, i
;
1155 printf("%ld ", time(NULL
));
1157 printf("%llu ", rel
->rx_bytes
);
1158 printf("%llu ", rel
->rx_packets
);
1159 printf("%llu ", rel
->rx_drops
);
1160 printf("%llu ", rel
->rx_errors
);
1162 printf("%llu ", abs
->rx_bytes
);
1163 printf("%llu ", abs
->rx_packets
);
1164 printf("%llu ", abs
->rx_drops
);
1165 printf("%llu ", abs
->rx_errors
);
1167 printf("%llu ", rel
->tx_bytes
);
1168 printf("%llu ", rel
->tx_packets
);
1169 printf("%llu ", rel
->tx_drops
);
1170 printf("%llu ", rel
->tx_errors
);
1172 printf("%llu ", abs
->tx_bytes
);
1173 printf("%llu ", abs
->tx_packets
);
1174 printf("%llu ", abs
->tx_drops
);
1175 printf("%llu ", abs
->tx_errors
);
1177 printf("%u ", rel
->cswitch
);
1178 printf("%lu ", abs
->mem_free
);
1179 printf("%lu ", abs
->mem_total
- abs
->mem_free
);
1180 printf("%lu ", abs
->mem_total
);
1181 printf("%lu ", abs
->swap_free
);
1182 printf("%lu ", abs
->swap_total
- abs
->swap_free
);
1183 printf("%lu ", abs
->swap_total
);
1184 printf("%u ", abs
->procs_total
);
1185 printf("%u ", abs
->procs_run
);
1186 printf("%u ", abs
->procs_iow
);
1188 cpus
= get_number_cpus();
1190 for (i
= 0; i
< cpus
; ++i
) {
1191 printf("%lu ", rel
->cpu_user
[i
]);
1192 printf("%lu ", rel
->cpu_nice
[i
]);
1193 printf("%lu ", rel
->cpu_sys
[i
]);
1194 printf("%lu ", rel
->cpu_idle
[i
]);
1195 printf("%lu ", rel
->cpu_iow
[i
]);
1197 printf("%llu ", rel
->irqs
[i
]);
1198 printf("%llu ", abs
->irqs
[i
]);
1200 printf("%llu ", rel
->irqs_srx
[i
]);
1201 printf("%llu ", abs
->irqs_srx
[i
]);
1203 printf("%llu ", rel
->irqs_stx
[i
]);
1204 printf("%llu ", abs
->irqs_stx
[i
]);
1207 if (iswireless(abs
)) {
1208 printf("%u ", rel
->wifi
.link_qual
);
1209 printf("%u ", abs
->wifi
.link_qual
);
1210 printf("%u ", abs
->wifi
.link_qual_max
);
1212 printf("%d ", rel
->wifi
.signal_level
);
1213 printf("%d ", abs
->wifi
.signal_level
);
1220 static void term_csv_header(const char *ifname
, const struct ifstat
*abs
,
1221 uint64_t ms_interval
)
1223 unsigned int cpus
, i
, j
= 1;
1225 printf("# gnuplot dump (#col:description)\n");
1226 printf("# networking interface: %s\n", ifname
);
1227 printf("# sampling interval (t): %lu ms\n", ms_interval
);
1228 printf("# %d:unixtime ", j
++);
1230 printf("%d:rx-bytes-per-t ", j
++);
1231 printf("%d:rx-pkts-per-t ", j
++);
1232 printf("%d:rx-drops-per-t ", j
++);
1233 printf("%d:rx-errors-per-t ", j
++);
1235 printf("%d:rx-bytes ", j
++);
1236 printf("%d:rx-pkts ", j
++);
1237 printf("%d:rx-drops ", j
++);
1238 printf("%d:rx-errors ", j
++);
1240 printf("%d:tx-bytes-per-t ", j
++);
1241 printf("%d:tx-pkts-per-t ", j
++);
1242 printf("%d:tx-drops-per-t ", j
++);
1243 printf("%d:tx-errors-per-t ", j
++);
1245 printf("%d:tx-bytes ", j
++);
1246 printf("%d:tx-pkts ", j
++);
1247 printf("%d:tx-drops ", j
++);
1248 printf("%d:tx-errors ", j
++);
1250 printf("%d:context-switches-per-t ", j
++);
1251 printf("%d:mem-free ", j
++);
1252 printf("%d:mem-used ", j
++);
1253 printf("%d:mem-total ", j
++);
1254 printf("%d:swap-free ", j
++);
1255 printf("%d:swap-used ", j
++);
1256 printf("%d:swap-total ", j
++);
1257 printf("%d:procs-total ", j
++);
1258 printf("%d:procs-in-run ", j
++);
1259 printf("%d:procs-in-iow ", j
++);
1261 cpus
= get_number_cpus();
1263 for (i
= 0; i
< cpus
; ++i
) {
1264 printf("%d:cpu%i-usr-per-t ", j
++, i
);
1265 printf("%d:cpu%i-nice-per-t ", j
++, i
);
1266 printf("%d:cpu%i-sys-per-t ", j
++, i
);
1267 printf("%d:cpu%i-idle-per-t ", j
++, i
);
1268 printf("%d:cpu%i-iow-per-t ", j
++, i
);
1270 printf("%d:cpu%i-net-irqs-per-t ", j
++, i
);
1271 printf("%d:cpu%i-net-irqs ", j
++, i
);
1273 printf("%d:cpu%i-net-rx-soft-irqs-per-t ", j
++, i
);
1274 printf("%d:cpu%i-net-rx-soft-irqs ", j
++, i
);
1275 printf("%d:cpu%i-net-tx-soft-irqs-per-t ", j
++, i
);
1276 printf("%d:cpu%i-net-tx-soft-irqs ", j
++, i
);
1279 if (iswireless(abs
)) {
1280 printf("%d:wifi-link-qual-per-t ", j
++);
1281 printf("%d:wifi-link-qual ", j
++);
1282 printf("%d:wifi-link-qual-max ", j
++);
1284 printf("%d:wifi-signal-dbm-per-t ", j
++);
1285 printf("%d:wifi-signal-dbm ", j
++);
1289 printf("# data:\n");
1293 static int term_main(const char *ifname
, uint64_t ms_interval
,
1294 unsigned int top_cpus __maybe_unused
,
1295 bool suppress_warnings __maybe_unused
)
1300 stats_sample_generic(ifname
, ms_interval
);
1304 term_csv_header(ifname
, &stats_new
, ms_interval
);
1307 term_csv(&stats_delta
, &stats_new
);
1308 } while (stats_loop
&& !sigint
);
1313 int main(int argc
, char **argv
)
1316 int c
, opt_index
, ret
, promisc
= 0;
1317 unsigned int cpus
, top_cpus
= 5;
1318 uint64_t interval
= 1000;
1319 char *ifname
= NULL
;
1320 bool suppress_warnings
= false;
1321 int (*func_main
)(const char *ifname
, uint64_t ms_interval
,
1322 unsigned int top_cpus
, bool suppress_warnings
);
1324 func_main
= screen_main
;
1329 while ((c
= getopt_long(argc
, argv
, short_options
, long_options
,
1330 &opt_index
)) != EOF
) {
1339 suppress_warnings
= true;
1342 ifname
= xstrndup(optarg
, IFNAMSIZ
);
1345 interval
= strtoul(optarg
, NULL
, 10);
1348 top_cpus
= strtoul(optarg
, NULL
, 10);
1350 panic("Number of top hitter CPUs must be greater than 0");
1359 show_percentage
= 1;
1365 func_main
= term_main
;
1371 panic("Option -%c requires an argument!\n",
1374 if (isprint(optopt
))
1375 printf("Unknown option character `0x%X\'!\n", optopt
);
1387 ifname
= xstrndup(argv
[1], IFNAMSIZ
);
1389 panic("No networking device given!\n");
1391 if (!strncmp("lo", ifname
, IFNAMSIZ
))
1392 panic("lo is not supported!\n");
1393 if (device_mtu(ifname
) == 0)
1394 panic("This is no networking device!\n");
1396 register_signal(SIGINT
, signal_handler
);
1397 register_signal(SIGHUP
, signal_handler
);
1399 cpus
= get_number_cpus();
1400 top_cpus
= min(top_cpus
, cpus
);
1401 if (uname(&uts
) < 0)
1402 panic("Cannot execute uname!\n");
1404 stats_alloc(&stats_old
, cpus
);
1405 stats_alloc(&stats_new
, cpus
);
1406 stats_alloc(&stats_delta
, cpus
);
1408 cpu_hits
= xzmalloc(cpus
* sizeof(*cpu_hits
));
1411 ifflags
= device_enter_promiscuous_mode(ifname
);
1412 ret
= func_main(ifname
, interval
, top_cpus
, suppress_warnings
);
1414 device_leave_promiscuous_mode(ifname
, ifflags
);
1416 stats_release(&stats_old
);
1417 stats_release(&stats_new
);
1418 stats_release(&stats_delta
);