1 /*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <stdio.h>
18 #include <stdlib.h>
19 #include <string.h>
20 #include <sys/types.h>
21
22 #include <filesystem>
23 #include <vector>
24
25 #include <android-base/file.h>
26 #include <android-base/parseint.h>
27 #include <android-base/stringprintf.h>
28 #include <memtrack/memtrack.h>
29
30 #define DIV_ROUND_UP(x, y) (((x) + (y)-1) / (y))
31
getprocname(pid_t pid,std::string * name)32 static void getprocname(pid_t pid, std::string* name) {
33 std::string fname = ::android::base::StringPrintf("/proc/%d/cmdline", pid);
34 if (!::android::base::ReadFileToString(fname, name)) {
35 fprintf(stderr, "Failed to read cmdline from: %s\n", fname.c_str());
36 *name = "<unknown>";
37 }
38 }
39
main(int,char **)40 int main(int /* argc */, char** /* argv */) {
41 int ret;
42 struct memtrack_proc* p;
43 std::vector<pid_t> pids;
44
45 p = memtrack_proc_new();
46 if (p == nullptr) {
47 fprintf(stderr, "failed to create memtrack process handle\n");
48 exit(EXIT_FAILURE);
49 }
50
51 for (auto& de : std::filesystem::directory_iterator("/proc")) {
52 if (!std::filesystem::is_directory(de.status())) {
53 continue;
54 }
55
56 pid_t pid;
57 if (!::android::base::ParseInt(de.path().filename().string(), &pid)) {
58 continue;
59 }
60 pids.emplace_back(pid);
61 }
62
63 for (auto& pid : pids) {
64 size_t v1;
65 size_t v2;
66 size_t v3;
67 size_t v4;
68 size_t v5;
69 size_t v6;
70 std::string cmdline;
71
72 getprocname(pid, &cmdline);
73
74 ret = memtrack_proc_get(p, pid);
75 if (ret) {
76 fprintf(stderr, "failed to get memory info for pid %d: %s (%d)\n", pid, strerror(-ret),
77 ret);
78 continue;
79 }
80
81 v1 = DIV_ROUND_UP(memtrack_proc_graphics_total(p), 1024);
82 v2 = DIV_ROUND_UP(memtrack_proc_graphics_pss(p), 1024);
83 v3 = DIV_ROUND_UP(memtrack_proc_gl_total(p), 1024);
84 v4 = DIV_ROUND_UP(memtrack_proc_gl_pss(p), 1024);
85 v5 = DIV_ROUND_UP(memtrack_proc_other_total(p), 1024);
86 v6 = DIV_ROUND_UP(memtrack_proc_other_pss(p), 1024);
87
88 if (v1 | v2 | v3 | v4 | v5 | v6) {
89 fprintf(stdout, "%5d %6zu %6zu %6zu %6zu %6zu %6zu %s\n", pid, v1, v2, v3, v4, v5, v6,
90 cmdline.c_str());
91 }
92 }
93
94 memtrack_proc_destroy(p);
95
96 return ret;
97 }
98