Merge "Lose vmstat to toybox."
This commit is contained in:
Elliott Hughes
Gerrit Code Review
commit
ba03759264
2 changed files with 0 additions and 248 deletions
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@ -159,7 +159,6 @@ OUR_TOOLS := \
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touch \
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umount \
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uptime \
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vmstat \
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watchprops \
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wipe \
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247
toolbox/vmstat.c
247
toolbox/vmstat.c
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@ -1,247 +0,0 @@
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/*
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* Copyright (c) 2008, The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google, Inc. nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/param.h>
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#include <unistd.h>
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struct state {
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long procs_r;
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long procs_b;
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long mem_free;
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long mem_mapped;
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long mem_anon;
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long mem_slab;
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long sys_in;
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long sys_cs;
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long sys_flt;
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long cpu_us;
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long cpu_ni;
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long cpu_sy;
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long cpu_id;
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long cpu_wa;
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long cpu_ir;
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long cpu_si;
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};
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#define MAX_LINE 256
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char line[MAX_LINE];
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static void read_state(struct state *s);
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static int read_meminfo(struct state *s);
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static int read_stat(struct state *s);
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static int read_vmstat(struct state *s);
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static void print_header(void);
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static void print_line(struct state *old, struct state *new);
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static void usage(char *cmd);
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int vmstat_main(int argc, char *argv[]) {
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struct state s[2];
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int iterations, delay, header_interval;
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int toggle, count;
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int i;
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iterations = -1;
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delay = 1;
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header_interval = 20;
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for (i = 1; i < argc; i++) {
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if (!strcmp(argv[i], "-n")) {
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if (i >= argc - 1) {
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fprintf(stderr, "Option -n requires an argument.\n");
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exit(EXIT_FAILURE);
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}
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iterations = atoi(argv[++i]);
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continue;
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}
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if (!strcmp(argv[i], "-d")) {
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if (i >= argc - 1) {
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fprintf(stderr, "Option -d requires an argument.\n");
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exit(EXIT_FAILURE);
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}
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delay = atoi(argv[++i]);
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continue;
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}
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if (!strcmp(argv[i], "-r")) {
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if (i >= argc - 1) {
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fprintf(stderr, "Option -r requires an argument.\n");
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exit(EXIT_FAILURE);
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}
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header_interval = atoi(argv[++i]);
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continue;
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}
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if (!strcmp(argv[i], "-h")) {
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usage(argv[0]);
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exit(EXIT_SUCCESS);
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}
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fprintf(stderr, "Invalid argument \"%s\".\n", argv[i]);
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usage(argv[0]);
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exit(EXIT_FAILURE);
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}
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toggle = 0;
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count = 0;
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if (!header_interval)
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print_header();
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read_state(&s[1 - toggle]);
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while ((iterations < 0) || (iterations-- > 0)) {
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sleep(delay);
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read_state(&s[toggle]);
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if (header_interval) {
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if (count == 0)
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print_header();
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count = (count + 1) % header_interval;
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}
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print_line(&s[1 - toggle], &s[toggle]);
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toggle = 1 - toggle;
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}
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return 0;
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}
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static void read_state(struct state *s) {
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int error;
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error = read_meminfo(s);
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if (error) {
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fprintf(stderr, "vmstat: could not read /proc/meminfo: %s\n", strerror(error));
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exit(EXIT_FAILURE);
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}
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error = read_stat(s);
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if (error) {
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fprintf(stderr, "vmstat: could not read /proc/stat: %s\n", strerror(error));
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exit(EXIT_FAILURE);
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}
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error = read_vmstat(s);
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if (error) {
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fprintf(stderr, "vmstat: could not read /proc/vmstat: %s\n", strerror(error));
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exit(EXIT_FAILURE);
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}
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}
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static int read_meminfo(struct state *s) {
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FILE *f;
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f = fopen("/proc/meminfo", "r");
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if (!f) return errno;
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while (fgets(line, MAX_LINE, f)) {
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sscanf(line, "MemFree: %ld kB", &s->mem_free);
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sscanf(line, "AnonPages: %ld kB", &s->mem_anon);
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sscanf(line, "Mapped: %ld kB", &s->mem_mapped);
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sscanf(line, "Slab: %ld kB", &s->mem_slab);
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}
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fclose(f);
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return 0;
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}
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static int read_stat(struct state *s) {
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FILE *f;
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f = fopen("/proc/stat", "r");
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if (!f) return errno;
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while (fgets(line, MAX_LINE, f)) {
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if (!strncmp(line, "cpu ", 4)) {
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sscanf(line, "cpu %ld %ld %ld %ld %ld %ld %ld",
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&s->cpu_us, &s->cpu_ni, &s->cpu_sy, &s->cpu_id, &s->cpu_wa,
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&s->cpu_ir, &s->cpu_si);
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}
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sscanf(line, "intr %ld", &s->sys_in);
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sscanf(line, "ctxt %ld", &s->sys_cs);
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sscanf(line, "procs_running %ld", &s->procs_r);
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sscanf(line, "procs_blocked %ld", &s->procs_b);
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}
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fclose(f);
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return 0;
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}
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static int read_vmstat(struct state *s) {
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FILE *f;
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f = fopen("/proc/vmstat", "r");
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if (!f) return errno;
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while (fgets(line, MAX_LINE, f)) {
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sscanf(line, "pgmajfault %ld", &s->sys_flt);
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}
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fclose(f);
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return 0;
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}
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static void print_header(void) {
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printf("%-5s %-27s %-14s %-17s\n", "procs", "memory", "system", "cpu");
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printf("%2s %2s %6s %6s %6s %6s %4s %4s %4s %2s %2s %2s %2s %2s %2s\n", "r", "b", "free", "mapped", "anon", "slab", "in", "cs", "flt", "us", "ni", "sy", "id", "wa", "ir");
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}
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/* Jiffies to percent conversion */
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#define JP(jif) ((jif) * 100 / (HZ))
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#define NORM(var) ((var) = (((var) > 99) ? (99) : (var)))
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static void print_line(struct state *old, struct state *new) {
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int us, ni, sy, id, wa, ir;
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us = JP(new->cpu_us - old->cpu_us); NORM(us);
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ni = JP(new->cpu_ni - old->cpu_ni); NORM(ni);
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sy = JP(new->cpu_sy - old->cpu_sy); NORM(sy);
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id = JP(new->cpu_id - old->cpu_id); NORM(id);
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wa = JP(new->cpu_wa - old->cpu_wa); NORM(wa);
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ir = JP(new->cpu_ir - old->cpu_ir); NORM(ir);
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printf("%2ld %2ld %6ld %6ld %6ld %6ld %4ld %4ld %4ld %2d %2d %2d %2d %2d %2d\n",
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new->procs_r ? (new->procs_r - 1) : 0, new->procs_b,
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new->mem_free, new->mem_mapped, new->mem_anon, new->mem_slab,
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new->sys_in - old->sys_in, new->sys_cs - old->sys_cs, new->sys_flt - old->sys_flt,
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us, ni, sy, id, wa, ir);
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}
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static void usage(char *cmd) {
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fprintf(stderr, "Usage: %s [ -h ] [ -n iterations ] [ -d delay ] [ -r header_repeat ]\n"
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" -n iterations How many rows of data to print.\n"
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" -d delay How long to sleep between rows.\n"
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" -r header_repeat How many rows to print before repeating\n"
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" the header. Zero means never repeat.\n"
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" -h Displays this help screen.\n",
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cmd);
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}
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