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ifpps.c
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ifpps.c
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/*
* netsniff-ng - the packet sniffing beast
* Copyright 2009 - 2013 Daniel Borkmann.
* Copyright 2013 Tobias Klauser
* Subject to the GPL, version 2.
*/
#include <stdio.h>
#include <string.h>
#include <curses.h>
#include <getopt.h>
#include <ctype.h>
#include <inttypes.h>
#include <sys/socket.h>
#include <sys/fsuid.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <signal.h>
#include <stdint.h>
#include <stdlib.h>
#include <time.h>
#include <dirent.h>
#include "die.h"
#include "dev.h"
#include "sig.h"
#include "str.h"
#include "link.h"
#include "xmalloc.h"
#include "ioops.h"
#include "cpus.h"
#include "config.h"
#include "built_in.h"
#include "screen.h"
struct wifi_stat {
uint32_t bitrate;
int16_t link_qual, link_qual_max;
int signal_level /*, noise_level*/;
};
struct ifstat {
long long unsigned int rx_bytes, rx_packets, rx_drops, rx_errors;
long long unsigned int rx_fifo, rx_frame, rx_multi;
long long unsigned int tx_bytes, tx_packets, tx_drops, tx_errors;
long long unsigned int tx_fifo, tx_colls, tx_carrier;
uint64_t mem_free, mem_total, mem_active, mem_inactive;
uint64_t swap_total, swap_free, swap_cached;
uint32_t procs_total, procs_run, procs_iow, cswitch;
struct wifi_stat wifi;
/*
* Pointer members need to be last in order for stats_zero() to work
* properly.
*/
long long unsigned int *irqs, *irqs_srx, *irqs_stx;
uint64_t *cpu_user, *cpu_sys, *cpu_nice, *cpu_idle, *cpu_iow;
};
struct cpu_hit {
unsigned int idx;
uint64_t hit;
long long unsigned int irqs_rel, irqs_abs;
};
struct avg_stat {
uint64_t cpu_user, cpu_sys, cpu_nice, cpu_idle, cpu_iow;
long double irqs_abs, irqs_rel, irqs_srx_rel, irqs_stx_rel;
};
static volatile sig_atomic_t sigint = 0;
static struct ifstat stats_old, stats_new, stats_delta;
static struct cpu_hit *cpu_hits;
static struct avg_stat stats_avg;
static int stats_loop = 0;
static int show_median = 0, show_percentage = 0;
static WINDOW *stats_screen = NULL;
static struct utsname uts;
static const char *short_options = "d:n:t:clmopPWvh";
static const struct option long_options[] = {
{"dev", required_argument, NULL, 'd'},
{"num-cpus", required_argument, NULL, 'n'},
{"interval", required_argument, NULL, 't'},
{"csv", no_argument, NULL, 'c'},
{"loop", no_argument, NULL, 'l'},
{"median", no_argument, NULL, 'm'},
{"omit-header", no_argument, NULL, 'o'},
{"promisc", no_argument, NULL, 'p'},
{"percentage", no_argument, NULL, 'P'},
{"no-warn", no_argument, NULL, 'W'},
{"version", no_argument, NULL, 'v'},
{"help", no_argument, NULL, 'h'},
{NULL, 0, NULL, 0}
};
static const char *copyright =
"Please report bugs at https://github.com/netsniff-ng/netsniff-ng/issues\n"
"Copyright (C) 2009-2013 Daniel Borkmann <[email protected]>\n"
"Swiss federal institute of technology (ETH Zurich)\n"
"Copyright (C) 2013 Tobias Klauser <[email protected]>\n"
"License: GNU GPL version 2.0\n"
"This is free software: you are free to change and redistribute it.\n"
"There is NO WARRANTY, to the extent permitted by law.";
static void signal_handler(int number)
{
switch (number) {
case SIGINT:
case SIGQUIT:
case SIGTERM:
sigint = 1;
break;
case SIGHUP:
default:
break;
}
}
static inline int iswireless(const struct ifstat *stats)
{
return stats->wifi.bitrate > 0;
}
static void __noreturn help(void)
{
printf("ifpps %s, top-like kernel networking and system statistics\n",
VERSION_STRING);
puts("http://www.netsniff-ng.org\n\n"
"Usage: ifpps [options] || ifpps <netdev>\n"
"Options:\n"
" -d|--dev <netdev> Device to fetch statistics for e.g., eth0\n"
" -n|--num-cpus <num> Number of top hitter CPUs in ncurses mode (def: 5)\n"
" -t|--interval <time> Refresh time in ms (default 1000 ms)\n"
" -c|--csv Output to terminal as Gnuplot-ready data\n"
" -l|--loop Continuous CSV output\n"
" -m|--median Display median values\n"
" -o|--omit-header Do not print the CSV header\n"
" -p|--promisc Promiscuous mode\n"
" -P|--percentage Show percentage of theoretical line rate\n"
" -W|--no-warn Suppress warnings\n"
" -v|--version Print version and exit\n"
" -h|--help Print this help and exit\n\n"
"Examples:\n"
" ifpps eth0\n"
" ifpps -pd eth0\n"
" ifpps -lpcd wlan0 > plot.dat\n\n"
"Note:\n"
" On 10G cards, RX/TX statistics are usually accumulated each > 1sec.\n"
" Thus, in those situations, it's good to use a -t of 10sec.\n");
puts(copyright);
die();
}
static void __noreturn version(void)
{
printf("ifpps %s, Git id: %s\n", VERSION_LONG, GITVERSION);
puts("top-like kernel networking and system statistics\n"
"http://www.netsniff-ng.org\n");
puts(copyright);
die();
}
static inline int padding_from_num(int n)
{
int i = 0;
do {
i++;
} while ((n /= 10) > 0);
return i;
}
#define STATS_ALLOC1(member) \
do { stats->member = xcalloc(cpus, sizeof(*(stats->member))); } while (0)
static void stats_alloc(struct ifstat *stats, unsigned int cpus)
{
STATS_ALLOC1(irqs);
STATS_ALLOC1(irqs_srx);
STATS_ALLOC1(irqs_stx);
STATS_ALLOC1(cpu_user);
STATS_ALLOC1(cpu_sys);
STATS_ALLOC1(cpu_nice);
STATS_ALLOC1(cpu_idle);
STATS_ALLOC1(cpu_iow);
}
#define STATS_ZERO1(member) \
do { memset(stats->member, 0, cpus * sizeof(*(stats->member))); } while (0)
static void stats_zero(struct ifstat *stats, unsigned int cpus)
{
/* Only clear the non-pointer members */
memset(stats, 0, offsetof(struct ifstat, irqs));
STATS_ZERO1(irqs);
STATS_ZERO1(irqs_srx);
STATS_ZERO1(irqs_stx);
STATS_ZERO1(cpu_user);
STATS_ZERO1(cpu_sys);
STATS_ZERO1(cpu_nice);
STATS_ZERO1(cpu_idle);
STATS_ZERO1(cpu_iow);
}
#define STATS_RELEASE(member) \
do { xfree(stats->member); } while (0)
static void stats_release(struct ifstat *stats)
{
STATS_RELEASE(irqs);
STATS_RELEASE(irqs_srx);
STATS_RELEASE(irqs_stx);
STATS_RELEASE(cpu_user);
STATS_RELEASE(cpu_sys);
STATS_RELEASE(cpu_nice);
STATS_RELEASE(cpu_idle);
STATS_RELEASE(cpu_iow);
}
static int stats_proc_net_dev(const char *ifname, struct ifstat *stats)
{
int ret = -EINVAL;
char buff[256];
char *ifname_colon;
FILE *fp;
fp = fopen("/proc/net/dev", "r");
if (!fp)
panic("Cannot open /proc/net/dev!\n");
ifname_colon = xstrndup(ifname, strlen(ifname) + 2);
ifname_colon[strlen(ifname)] = ':';
ifname_colon[strlen(ifname) + 1] = '\0';
if (fgets(buff, sizeof(buff), fp)) { ; }
if (fgets(buff, sizeof(buff), fp)) { ; }
memset(buff, 0, sizeof(buff));
while (fgets(buff, sizeof(buff), fp) != NULL) {
buff[sizeof(buff) - 1] = 0;
if (strstr(buff, ifname_colon) == NULL)
continue;
if (sscanf(buff, "%*[a-zA-Z0-9_ .-]:%llu%llu%llu%llu%llu%llu"
"%llu%*u%llu%llu%llu%llu%llu%llu%llu",
&stats->rx_bytes, &stats->rx_packets,
&stats->rx_errors, &stats->rx_drops,
&stats->rx_fifo, &stats->rx_frame,
&stats->rx_multi, &stats->tx_bytes,
&stats->tx_packets, &stats->tx_errors,
&stats->tx_drops, &stats->tx_fifo,
&stats->tx_colls, &stats->tx_carrier) == 14) {
ret = 0;
break;
}
memset(buff, 0, sizeof(buff));
}
xfree(ifname_colon);
fclose(fp);
return ret;
}
static int stats_proc_interrupts(char *ifname, struct ifstat *stats)
{
int ret = -EINVAL, try = 0;
unsigned int i, cpus;
char *ptr, *buff;
bool seen = false;
size_t buff_len;
struct ethtool_drvinfo drvinf;
FILE *fp;
cpus = get_number_cpus();
buff_len = cpus * 128;
buff = xmalloc(buff_len);
fp = fopen("/proc/interrupts", "r");
if (!fp)
panic("Cannot open /proc/interrupts!\n");
retry:
fseek(fp, 0, SEEK_SET);
memset(buff, 0, buff_len);
while (fgets(buff, buff_len, fp) != NULL) {
buff[buff_len - 1] = 0;
if (strstr(buff, ifname) == NULL)
continue;
ptr = strchr(buff, ':');
if (!ptr)
continue;
ptr++;
for (i = 0; i < cpus && ptr; ++i) {
if (seen)
stats->irqs[i] += strtol(ptr, &ptr, 10);
else
stats->irqs[i] = strtol(ptr, &ptr, 10);
if (i == cpus - 1) {
ret = 0;
seen = true;
}
}
memset(buff, 0, buff_len);
}
if (ret == -EINVAL && try == 0) {
if (ethtool_drvinf(ifname, &drvinf) < 0)
goto done;
ifname = drvinf.driver;
try++;
goto retry;
}
done:
xfree(buff);
fclose(fp);
return ret;
}
static int stats_proc_softirqs(struct ifstat *stats)
{
unsigned int i, cpus;
char *ptr, *buff;
size_t buff_len;
FILE *fp;
enum {
softirqs_net_rx,
softirqs_net_tx,
} net_type;
fp = fopen("/proc/softirqs", "r");
if (!fp)
panic("Cannot open /proc/softirqs!\n");
cpus = get_number_cpus();
buff_len = cpus * 128;
buff = xmalloc(buff_len);
memset(buff, 0, buff_len);
while (fgets(buff, buff_len, fp) != NULL) {
buff[buff_len - 1] = 0;
if ((ptr = strstr(buff, "NET_TX:")))
net_type = softirqs_net_tx;
else if ((ptr = strstr(buff, "NET_RX:")))
net_type = softirqs_net_rx;
else
continue;
ptr += strlen("NET_xX:");
for (i = 0; i < cpus; ++i) {
switch (net_type) {
case softirqs_net_tx:
stats->irqs_stx[i] = strtol(ptr, &ptr, 10);
break;
case softirqs_net_rx:
stats->irqs_srx[i] = strtol(ptr, &ptr, 10);
break;
}
}
memset(buff, 0, buff_len);
}
xfree(buff);
fclose(fp);
return 0;
}
static int stats_proc_memory(struct ifstat *stats)
{
char *ptr, buff[256];
FILE *fp;
fp = fopen("/proc/meminfo", "r");
if (!fp)
panic("Cannot open /proc/meminfo!\n");
memset(buff, 0, sizeof(buff));
while (fgets(buff, sizeof(buff), fp) != NULL) {
buff[sizeof(buff) - 1] = 0;
if ((ptr = strstr(buff, "MemTotal:"))) {
ptr += strlen("MemTotal:");
stats->mem_total = strtoul(ptr, &ptr, 10);
} else if ((ptr = strstr(buff, "MemFree:"))) {
ptr += strlen("MemFree:");
stats->mem_free = strtoul(ptr, &ptr, 10);
} else if ((ptr = strstr(buff, "Active:"))) {
ptr += strlen("Active:");
stats->mem_active = strtoul(ptr, &ptr, 10);
} else if ((ptr = strstr(buff, "Inactive:"))) {
ptr += strlen("Inactive:");
stats->mem_inactive = strtoul(ptr, &ptr, 10);
} else if ((ptr = strstr(buff, "SwapTotal:"))) {
ptr += strlen("SwapTotal:");
stats->swap_total = strtoul(ptr, &ptr, 10);
} else if ((ptr = strstr(buff, "SwapFree:"))) {
ptr += strlen("SwapFree:");
stats->swap_free = strtoul(ptr, &ptr, 10);
} else if ((ptr = strstr(buff, "SwapCached:"))) {
ptr += strlen("SwapCached:");
stats->swap_cached = strtoul(ptr, &ptr, 10);
}
memset(buff, 0, sizeof(buff));
}
fclose(fp);
return 0;
}
static int stats_proc_system(struct ifstat *stats)
{
unsigned int cpu, cpus;
char *ptr, buff[256];
FILE *fp;
fp = fopen("/proc/stat", "r");
if (!fp)
panic("Cannot open /proc/stat!\n");
cpus = get_number_cpus();
memset(buff, 0, sizeof(buff));
while (fgets(buff, sizeof(buff), fp) != NULL) {
buff[sizeof(buff) - 1] = 0;
if ((ptr = strstr(buff, "cpu"))) {
ptr += strlen("cpu");
if (isblank(*ptr))
goto next;
cpu = strtol(ptr, &ptr, 10);
bug_on(cpu > cpus);
if (sscanf(ptr, "%"SCNu64"%"SCNu64"%"SCNu64"%"SCNu64"%"SCNu64,
&stats->cpu_user[cpu],
&stats->cpu_nice[cpu],
&stats->cpu_sys[cpu],
&stats->cpu_idle[cpu],
&stats->cpu_iow[cpu]) != 5)
goto next;
} else if ((ptr = strstr(buff, "ctxt"))) {
ptr += strlen("ctxt");
stats->cswitch = strtoul(ptr, &ptr, 10);
} else if ((ptr = strstr(buff, "procs_running"))) {
ptr += strlen("procs_running");
stats->procs_run = strtoul(ptr, &ptr, 10);
} else if ((ptr = strstr(buff, "procs_blocked"))) {
ptr += strlen("procs_blocked");
stats->procs_iow = strtoul(ptr, &ptr, 10);
}
next:
memset(buff, 0, sizeof(buff));
}
fclose(fp);
return 0;
}
static int stats_proc_procs(struct ifstat *stats)
{
DIR *dir;
struct dirent *e;
dir = opendir("/proc");
if (!dir)
panic("Cannot open /proc\n");
stats->procs_total = 0;
while ((e = readdir(dir)) != NULL) {
const char *name = e->d_name;
char *end;
unsigned int pid = strtoul(name, &end, 10);
/* not a number */
if (pid == 0 && end == name)
continue;
stats->procs_total++;
}
closedir(dir);
return 0;
}
static int adjust_dbm_level(int in_dbm, int dbm_val)
{
if (!in_dbm)
return dbm_val;
return dbm_val - 0x100;
}
static int stats_wireless(const char *ifname, struct ifstat *stats)
{
int ret;
struct iw_statistics ws;
ret = wireless_sigqual(ifname, &ws);
if (ret != 0) {
stats->wifi.bitrate = 0;
return -EINVAL;
}
stats->wifi.bitrate = wireless_bitrate(ifname);
stats->wifi.signal_level =
adjust_dbm_level(ws.qual.updated & IW_QUAL_DBM, ws.qual.level);
stats->wifi.link_qual = ws.qual.qual;
stats->wifi.link_qual_max = wireless_rangemax_sigqual(ifname);
return ret;
}
#define DIFF1(member) do { diff->member = new->member - old->member; } while (0)
#define DIFF(member) do { \
if (sizeof(diff->member) != sizeof(new->member) || \
sizeof(diff->member) != sizeof(old->member)) \
bug(); \
if ((new->member - old->member) > (new->member)) { \
diff->member = 0; \
} else { \
DIFF1(member); \
} \
} while (0)
static void stats_diff(struct ifstat *old, struct ifstat *new,
struct ifstat *diff)
{
unsigned int cpus, i;
DIFF(rx_bytes);
DIFF(rx_packets);
DIFF(rx_drops);
DIFF(rx_errors);
DIFF(rx_fifo);
DIFF(rx_frame);
DIFF(rx_multi);
DIFF(tx_bytes);
DIFF(tx_packets);
DIFF(tx_drops);
DIFF(tx_errors);
DIFF(tx_fifo);
DIFF(tx_colls);
DIFF(tx_carrier);
DIFF1(wifi.signal_level);
DIFF1(wifi.link_qual);
DIFF1(cswitch);
cpus = get_number_cpus();
for (i = 0; i < cpus; ++i) {
DIFF(irqs[i]);
DIFF(irqs_srx[i]);
DIFF(irqs_stx[i]);
DIFF1(cpu_user[i]);
DIFF1(cpu_nice[i]);
DIFF1(cpu_sys[i]);
DIFF1(cpu_idle[i]);
DIFF1(cpu_iow[i]);
}
}
static void stats_fetch(const char *ifname, struct ifstat *stats)
{
if (stats_proc_net_dev(ifname, stats) < 0)
panic("Cannot fetch device stats!\n");
if (stats_proc_softirqs(stats) < 0)
panic("Cannot fetch software interrupts!\n");
if (stats_proc_memory(stats) < 0)
panic("Cannot fetch memory stats!\n");
if (stats_proc_system(stats) < 0)
panic("Cannot fetch system stats!\n");
if (stats_proc_procs(stats) < 0)
panic("Cannot fetch process stats!\n");
stats_proc_interrupts((char *) ifname, stats);
stats_wireless(ifname, stats);
}
static void stats_sample_generic(const char *ifname, uint64_t ms_interval)
{
unsigned int cpus = get_number_cpus();
stats_zero(&stats_old, cpus);
stats_zero(&stats_new, cpus);
stats_zero(&stats_delta, cpus);
stats_fetch(ifname, &stats_old);
usleep(ms_interval * 1000);
stats_fetch(ifname, &stats_new);
stats_diff(&stats_old, &stats_new, &stats_delta);
}
static int cmp_hits(const void *p1, const void *p2)
{
const struct cpu_hit *h1 = p1, *h2 = p2;
/*
* We want the hits sorted in descending order, thus reverse the return
* values.
*/
if (h1->hit == h2->hit)
return 0;
else if (h1->hit < h2->hit)
return 1;
else
return -1;
}
static int cmp_irqs_rel(const void *p1, const void *p2)
{
const struct cpu_hit *h1 = p1, *h2 = p2;
/*
* We want the hits sorted in descending order, thus reverse the return
* values.
*/
if (h1->irqs_rel == h2->irqs_rel)
return 0;
else if (h1->irqs_rel < h2->irqs_rel)
return 1;
else
return -1;
}
static int cmp_irqs_abs(const void *p1, const void *p2)
{
const struct cpu_hit *h1 = p1, *h2 = p2;
/*
* We want the hits sorted in descending order, thus reverse the return
* values.
*/
if (h1->irqs_abs == h2->irqs_abs)
return 0;
else if (h1->irqs_abs < h2->irqs_abs)
return 1;
else
return -1;
}
static void stats_top(const struct ifstat *rel, const struct ifstat *abs,
unsigned int cpus)
{
unsigned int i;
memset(&stats_avg, 0, sizeof(stats_avg));
for (i = 0; i < cpus; ++i) {
cpu_hits[i].idx = i;
cpu_hits[i].hit = rel->cpu_user[i] + rel->cpu_nice[i] + rel->cpu_sys[i];
cpu_hits[i].irqs_rel = rel->irqs[i];
cpu_hits[i].irqs_abs = abs->irqs[i];
stats_avg.cpu_user += rel->cpu_user[i];
stats_avg.cpu_sys += rel->cpu_sys[i];
stats_avg.cpu_nice += rel->cpu_nice[i];
stats_avg.cpu_idle += rel->cpu_idle[i];
stats_avg.cpu_iow += rel->cpu_iow[i];
stats_avg.irqs_abs += abs->irqs[i];
stats_avg.irqs_rel += rel->irqs[i];
stats_avg.irqs_srx_rel += rel->irqs_srx[i];
stats_avg.irqs_stx_rel += rel->irqs_stx[i];
}
stats_avg.cpu_user /= cpus;
stats_avg.cpu_sys /= cpus;
stats_avg.cpu_nice /= cpus;
stats_avg.cpu_idle /= cpus;
stats_avg.cpu_iow /= cpus;
stats_avg.irqs_abs /= cpus;
stats_avg.irqs_rel /= cpus;
stats_avg.irqs_srx_rel /= cpus;
stats_avg.irqs_stx_rel /= cpus;
}
static void screen_header(WINDOW *screen, const char *ifname, int *voff,
uint32_t rate, uint64_t ms_interval, unsigned int top_cpus)
{
size_t len = 0;
char buff[64], machine[64];
struct ethtool_drvinfo drvinf;
int link = ethtool_link(ifname);
unsigned int cpus = get_number_cpus();
ethtool_drvinf(ifname, &drvinf);
memset(buff, 0, sizeof(buff));
memset(machine, 0, sizeof(machine));
if (rate)
len += snprintf(buff + len, sizeof(buff) - len, " %uMbit/s", rate);
if (link >= 0)
len += snprintf(buff + len, sizeof(buff) - len, " link:%s",
link == 0 ? "no" : "yes");
if (!strstr(uts.release, uts.machine))
slprintf(machine, sizeof(machine), " %s,", uts.machine);
mvwprintw(screen, (*voff)++, 2,
"%s,%s %s (%s%s), t=%"PRIu64"ms, cpus=%u%s/%u"
" ", uts.release, machine,
ifname, drvinf.driver, buff, ms_interval, top_cpus,
top_cpus > 0 && top_cpus < cpus ? "+1" : "", cpus);
}
static void screen_net_dev_rel(WINDOW *screen, const struct ifstat *rel,
int *voff)
{
attron(A_REVERSE);
mvwprintw(screen, (*voff)++, 0,
" rx: %16.3llf MiB/t "
"%10llu pkts/t "
"%10llu drops/t "
"%10llu errors/t ",
((long double) rel->rx_bytes) / (1LLU << 20),
rel->rx_packets, rel->rx_drops, rel->rx_errors);
mvwprintw(screen, (*voff)++, 0,
" tx: %16.3llf MiB/t "
"%10llu pkts/t "
"%10llu drops/t "
"%10llu errors/t ",
((long double) rel->tx_bytes) / (1LLU << 20),
rel->tx_packets, rel->tx_drops, rel->tx_errors);
attroff(A_REVERSE);
}
static void screen_net_dev_percentage(WINDOW *screen, const struct ifstat *rel,
int *voff, uint32_t rate)
{
mvwprintw(screen, (*voff)++, 0,
" rx: %15.2llf%% of line rate "
" ",
rate ? ((((long double) rel->rx_bytes) / 125000) / rate) * 100.0 : 0.0);
mvwprintw(screen, (*voff)++, 0,
" tx: %15.2llf%% of line rate "
" ",
rate ? ((((long double) rel->tx_bytes) / 125000) / rate) * 100.0 : 0.0);
}
static void screen_net_dev_abs(WINDOW *screen, const struct ifstat *abs,
int *voff)
{
mvwprintw(screen, (*voff)++, 2,
"rx: %16.3llf MiB "
"%10llu pkts "
"%10llu drops "
"%10llu errors",
((long double) abs->rx_bytes) / (1LLU << 20),
abs->rx_packets, abs->rx_drops, abs->rx_errors);
mvwprintw(screen, (*voff)++, 2,
"tx: %16.3llf MiB "
"%10llu pkts "
"%10llu drops "
"%10llu errors",
((long double) abs->tx_bytes) / (1LLU << 20),
abs->tx_packets, abs->tx_drops, abs->tx_errors);
}
static void screen_sys(WINDOW *screen, const struct ifstat *rel,
const struct ifstat *abs, int *voff)
{
mvwprintw(screen, (*voff)++, 2,
"sys: %14"PRIu32" cs/t "
"%11"PRIu32" procs "
"%11"PRIu32" running "
"%10"PRIu32" iowait",
rel->cswitch, abs->procs_total, abs->procs_run, abs->procs_iow);
}
static void screen_mem_swap(WINDOW *screen, const struct ifstat *abs, int *voff)
{
mvwprintw(screen, (*voff)++, 2,
"mem: %13"PRIu64"M total "
"%9"PRIu64"M used "
"%11"PRIu64"M active "
"%10"PRIu64"M inactive",
abs->mem_total / 1024,
(abs->mem_total - abs->mem_free) / 1024,
abs->mem_active / 1024,
abs->mem_inactive / 1024);
mvwprintw(screen, (*voff)++, 2,
"swap: %12"PRIu64"M total "
"%9uM used "
"%11uM cached",
abs->swap_total / 1024,
(abs->swap_total - abs->swap_free) / 1024,
abs->swap_cached / 1024);
}
static void screen_percpu_states_one(WINDOW *screen, const struct ifstat *rel,
int *voff, unsigned int idx, char *tag)
{
int max_padd = padding_from_num(get_number_cpus());
double usr = 0.0, sys = 0.0, idl = 0.0, iow = 0.0;
uint64_t all = rel->cpu_user[idx] + rel->cpu_nice[idx] + rel->cpu_sys[idx] +
rel->cpu_idle[idx] + rel->cpu_iow[idx];
if (all > 0) {
usr = 100.0 * (rel->cpu_user[idx] + rel->cpu_nice[idx]) / all;
sys = 100.0 * rel->cpu_sys[idx] / all;
idl = 100.0 * rel->cpu_idle[idx] / all;
iow = 100.0 * rel->cpu_iow[idx] / all;
}
mvwprintw(screen, (*voff)++, 2,
"cpu%*d %s: %11.1lf%% usr/t "
"%9.1lf%% sys/t "
"%10.1lf%% idl/t "
"%11.1lf%% iow/t",
max_padd, idx, tag, usr, sys, idl, iow);
}
#define MEDIAN_EVEN(member) do { \
m_##member = (rel->member[i] + rel->member[j]) / 2.0; \
} while (0)
#define MEDIAN_ODD(member) do { \
m_##member = rel->member[i]; \
} while (0)
static void screen_percpu_states(WINDOW *screen, const struct ifstat *rel,
const struct avg_stat *avg,
unsigned int top_cpus, int *voff)
{
unsigned int i;
unsigned int cpus = get_number_cpus();
int max_padd = padding_from_num(cpus);
uint64_t all;
double usr = 0.0, sys = 0.0, idl = 0.0, iow = 0.0;
if (top_cpus == 0)
return;
/* Display top hitter */
screen_percpu_states_one(screen, rel, voff, cpu_hits[0].idx, "+");
/* Make sure we don't display the min. hitter twice */
if (top_cpus == cpus)
top_cpus--;
for (i = 1; i < top_cpus; ++i)
screen_percpu_states_one(screen, rel, voff, cpu_hits[i].idx, "|");
/* Display minimum hitter */
if (cpus != 1)
screen_percpu_states_one(screen, rel, voff, cpu_hits[cpus - 1].idx, "-");
all = avg->cpu_user + avg->cpu_sys + avg->cpu_nice + avg->cpu_idle + avg->cpu_iow;
if (all > 0) {
usr = 100.0 * (avg->cpu_user + avg->cpu_nice) / all;
sys = 100.0 * avg->cpu_sys / all;
idl = 100.0 * avg->cpu_idle /all;
iow = 100.0 * avg->cpu_iow / all;
}
mvwprintw(screen, (*voff)++, 2,
"avg:%*s%14.1lf%% "
"%9.1lf%% "
"%10.1lf%% "
"%11.1lf%%", max_padd, "", usr, sys, idl, iow);
if (show_median) {
long double m_cpu_user, m_cpu_nice, m_cpu_sys, m_cpu_idle, m_cpu_iow;
long double m_all;
long double m_usr = 0.0, m_sys = 0.0, m_idl = 0.0, m_iow = 0.0;
i = cpu_hits[cpus / 2].idx;
if (cpus % 2 == 0) {
/* take the mean of the 2 middle entries */
int j = cpu_hits[(cpus / 2) - 1].idx;
MEDIAN_EVEN(cpu_user);
MEDIAN_EVEN(cpu_nice);
MEDIAN_EVEN(cpu_sys);
MEDIAN_EVEN(cpu_idle);
MEDIAN_EVEN(cpu_iow);
} else {
/* take the middle entry as is */
MEDIAN_ODD(cpu_user);
MEDIAN_ODD(cpu_nice);
MEDIAN_ODD(cpu_sys);
MEDIAN_ODD(cpu_idle);
MEDIAN_ODD(cpu_iow);
}
m_all = m_cpu_user + m_cpu_sys + m_cpu_nice + m_cpu_idle + m_cpu_iow;
if (m_all > 0.0) {
m_usr = 100.0 * (m_cpu_user + m_cpu_nice) / m_all;
m_sys = 100.0 * m_cpu_sys / m_all;
m_idl = 100.0 * m_cpu_idle /m_all;
m_iow = 100.0 * m_cpu_iow / m_all;
}
mvwprintw(screen, (*voff)++, 2,
"med:%*s%14.1Lf%% "
"%9.1Lf%% "
"%10.1Lf%% "
"%11.1Lf%%", max_padd, "", m_usr, m_sys, m_idl, m_iow);
}
}
static void screen_percpu_irqs_rel_one(WINDOW *screen, const struct ifstat *rel,
int *voff, unsigned int idx, char *tag)
{
int max_padd = padding_from_num(get_number_cpus());
mvwprintw(screen, (*voff)++, 2,
"cpu%*d %s: %12llu irqs/t "
"%17llu sirq rx/t "
"%17llu sirq tx/t",
max_padd, idx, tag,
rel->irqs[idx],
rel->irqs_srx[idx],
rel->irqs_stx[idx]);
}
static void screen_percpu_irqs_rel(WINDOW *screen, const struct ifstat *rel,
const struct avg_stat *avg,
unsigned int top_cpus, int *voff)
{
unsigned int i;
unsigned int cpus = get_number_cpus();
int max_padd = padding_from_num(cpus);
screen_percpu_irqs_rel_one(screen, rel, voff, cpu_hits[0].idx, "+");
if (top_cpus == cpus)
top_cpus--;
for (i = 1; i < top_cpus; ++i)
screen_percpu_irqs_rel_one(screen, rel, voff, cpu_hits[i].idx, "|");
if (cpus != 1)
screen_percpu_irqs_rel_one(screen, rel, voff, cpu_hits[cpus - 1].idx, "-");
mvwprintw(screen, (*voff)++, 2,
"avg:%*s%17.1Lf "
"%17.1Lf "
"%17.1Lf", max_padd, "",
avg->irqs_rel, avg->irqs_srx_rel, avg->irqs_stx_rel);
if (show_median) {
long double m_irqs, m_irqs_srx, m_irqs_stx;
i = cpu_hits[cpus / 2].idx;
if (cpus % 2 == 0) {
/* take the mean of the 2 middle entries */
int j = cpu_hits[(cpus / 2) - 1].idx;
MEDIAN_EVEN(irqs);
MEDIAN_EVEN(irqs_srx);
MEDIAN_EVEN(irqs_stx);
} else {
/* take the middle entry as is */
MEDIAN_ODD(irqs);
MEDIAN_ODD(irqs_srx);
MEDIAN_ODD(irqs_stx);
}
mvwprintw(screen, (*voff)++, 2,
"med:%*s%17.1Lf "
"%17.1Lf "
"%17.1Lf", max_padd, "",
m_irqs, m_irqs_srx, m_irqs_stx);
}
}