6e5739d671
Bug: 31180823 Change-Id: I9be61e17028baa218e7b4aea9383109360687a30 Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
139 lines
3.4 KiB
C
139 lines
3.4 KiB
C
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <memtrack/memtrack.h>
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#include <pagemap/pagemap.h>
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#define DIV_ROUND_UP(x,y) (((x) + (y) - 1) / (y))
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static int getprocname(pid_t pid, char *buf, int len) {
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char *filename;
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FILE *f;
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int rc = 0;
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static const char* unknown_cmdline = "<unknown>";
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if (len <= 0) {
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return -1;
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}
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if (asprintf(&filename, "/proc/%d/cmdline", pid) < 0) {
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rc = 1;
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goto exit;
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}
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f = fopen(filename, "r");
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if (f == NULL) {
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rc = 2;
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goto releasefilename;
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}
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if (fgets(buf, len, f) == NULL) {
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rc = 3;
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goto closefile;
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}
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closefile:
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(void) fclose(f);
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releasefilename:
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free(filename);
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exit:
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if (rc != 0) {
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/*
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* The process went away before we could read its process name. Try
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* to give the user "<unknown>" here, but otherwise they get to look
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* at a blank.
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*/
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if (strlcpy(buf, unknown_cmdline, (size_t)len) >= (size_t)len) {
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rc = 4;
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}
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}
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return rc;
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}
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int main(int argc, char *argv[])
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{
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int ret;
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pm_kernel_t *ker;
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size_t num_procs;
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pid_t *pids;
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struct memtrack_proc *p;
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size_t i;
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(void)argc;
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(void)argv;
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ret = pm_kernel_create(&ker);
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if (ret) {
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fprintf(stderr, "Error creating kernel interface -- "
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"does this kernel have pagemap?\n");
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exit(EXIT_FAILURE);
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}
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ret = pm_kernel_pids(ker, &pids, &num_procs);
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if (ret) {
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fprintf(stderr, "Error listing processes.\n");
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exit(EXIT_FAILURE);
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}
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p = memtrack_proc_new();
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if (ret) {
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fprintf(stderr, "failed to create memtrack process handle\n");
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exit(EXIT_FAILURE);
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}
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for (i = 0; i < num_procs; i++) {
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pid_t pid = pids[i];
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char cmdline[256];
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size_t v1;
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size_t v2;
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size_t v3;
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size_t v4;
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size_t v5;
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size_t v6;
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getprocname(pid, cmdline, (int)sizeof(cmdline));
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ret = memtrack_proc_get(p, pid);
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if (ret) {
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fprintf(stderr, "failed to get memory info for pid %d: %s (%d)\n",
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pid, strerror(-ret), ret);
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continue;
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}
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v1 = DIV_ROUND_UP(memtrack_proc_graphics_total(p), 1024);
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v2 = DIV_ROUND_UP(memtrack_proc_graphics_pss(p), 1024);
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v3 = DIV_ROUND_UP(memtrack_proc_gl_total(p), 1024);
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v4 = DIV_ROUND_UP(memtrack_proc_gl_pss(p), 1024);
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v5 = DIV_ROUND_UP(memtrack_proc_other_total(p), 1024);
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v6 = DIV_ROUND_UP(memtrack_proc_other_pss(p), 1024);
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if (v1 | v2 | v3 | v4 | v5 | v6) {
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printf("%5d %6zu %6zu %6zu %6zu %6zu %6zu %s\n", pid,
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v1, v2, v3, v4, v5, v6, cmdline);
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}
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}
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memtrack_proc_destroy(p);
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return 0;
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}
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