1 /*-
2 * Copyright (c) 2012 Hudson River Trading LLC
3 * Written by: John H. Baldwin <[email protected]>
4 * Copyright (c) 2015 Allan Jude <[email protected]>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 #include <sys/param.h>
31 #include <sys/sysctl.h>
32 #include <sys/user.h>
33
34 #include <libprocstat.h>
35 #include <stdbool.h>
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <libutil.h>
39
40 #include "procstat.h"
41
42 static struct {
43 const char *ri_name;
44 bool ri_humanize;
45 int ri_scale;
46 } rusage_info[] = {
47 { "maximum RSS", true, 1 },
48 { "integral shared memory", true, 1 },
49 { "integral unshared data", true, 1 },
50 { "integral unshared stack", true, 1 },
51 { "page reclaims", false, 0 },
52 { "page faults", false, 0 },
53 { "swaps", false, 0 },
54 { "block reads", false, 0 },
55 { "block writes", false, 0 },
56 { "messages sent", false, 0 },
57 { "messages received", false, 0 },
58 { "signals received", false, 0 },
59 { "voluntary context switches", false, 0 },
60 { "involuntary context switches", false, 0 }
61 };
62
63 /* xxx days hh:mm:ss.uuuuuu */
64 static const char *
format_time(struct timeval * tv)65 format_time(struct timeval *tv)
66 {
67 static char buffer[32];
68 int days, hours, minutes, seconds, used;
69
70 minutes = tv->tv_sec / 60;
71 seconds = tv->tv_sec % 60;
72 hours = minutes / 60;
73 minutes %= 60;
74 days = hours / 24;
75 hours %= 24;
76 used = 0;
77 if (days == 1)
78 used += snprintf(buffer, sizeof(buffer), "1 day ");
79 else if (days > 0)
80 used += snprintf(buffer, sizeof(buffer), "%u days ", days);
81
82 snprintf(buffer + used, sizeof(buffer) - used, "%02u:%02u:%02u.%06u",
83 hours, minutes, seconds, (unsigned int)tv->tv_usec);
84 return (buffer);
85 }
86
87 static const char *
format_value(long value,bool humanize,int scale)88 format_value(long value, bool humanize, int scale)
89 {
90 static char buffer[14];
91
92 if (scale != 0)
93 value <<= scale * 10;
94 if (humanize)
95 humanize_number(buffer, sizeof(buffer), value, "B",
96 scale, HN_DECIMAL);
97 else
98 snprintf(buffer, sizeof(buffer), "%ld ", value);
99 return (buffer);
100 }
101
102 static void
print_prefix(struct kinfo_proc * kipp)103 print_prefix(struct kinfo_proc *kipp)
104 {
105
106 xo_emit("{d:process_id/%5d/%d} ", kipp->ki_pid);
107 if ((procstat_opts & PS_OPT_PERTHREAD) != 0)
108 xo_emit("{d:thread_id/%6d/%d} ", kipp->ki_tid);
109 xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm);
110 }
111
112 static void
print_rusage(struct kinfo_proc * kipp)113 print_rusage(struct kinfo_proc *kipp)
114 {
115 long *lp;
116 unsigned int i;
117 char *field, *threadid;
118
119 print_prefix(kipp);
120 xo_emit("{d:resource/%-14s} {d:usage/%29s}{P: }\n", "user time",
121 format_time(&kipp->ki_rusage.ru_utime));
122 print_prefix(kipp);
123 xo_emit("{d:resource/%-14s} {d:usage/%29s}{P: }\n", "system time",
124 format_time(&kipp->ki_rusage.ru_stime));
125
126 if ((procstat_opts & PS_OPT_PERTHREAD) != 0) {
127 asprintf(&threadid, "%d", kipp->ki_tid);
128 if (threadid == NULL)
129 xo_errc(1, ENOMEM,
130 "Failed to allocate memory in print_rusage()");
131 xo_open_container(threadid);
132 xo_emit("{e:thread_id/%d}", kipp->ki_tid);
133 } else {
134 xo_emit("{e:process_id/%d}", kipp->ki_pid);
135 xo_emit("{e:command/%s}", kipp->ki_comm);
136 }
137 xo_emit("{e:user time/%s}", format_time(&kipp->ki_rusage.ru_utime));
138 xo_emit("{e:system time/%s}", format_time(&kipp->ki_rusage.ru_stime));
139
140 lp = &kipp->ki_rusage.ru_maxrss;
141 for (i = 0; i < nitems(rusage_info); i++) {
142 print_prefix(kipp);
143 asprintf(&field, "{e:%s/%%D}", rusage_info[i].ri_name);
144 if (field == NULL)
145 xo_errc(1, ENOMEM,
146 "Failed to allocate memory in print_rusage()");
147 xo_emit(field, *lp);
148 free(field);
149 xo_emit("{d:resource/%-32s} {d:usage/%14s}\n",
150 rusage_info[i].ri_name,
151 format_value(*lp, rusage_info[i].ri_humanize,
152 rusage_info[i].ri_scale));
153 lp++;
154 }
155 if ((procstat_opts & PS_OPT_PERTHREAD) != 0) {
156 xo_close_container(threadid);
157 free(threadid);
158 }
159 }
160
161 void
procstat_rusage(struct procstat * procstat,struct kinfo_proc * kipp)162 procstat_rusage(struct procstat *procstat, struct kinfo_proc *kipp)
163 {
164 struct kinfo_proc *kip;
165 unsigned int count, i;
166
167 if ((procstat_opts & PS_OPT_NOHEADER) == 0) {
168 xo_emit("{d:ta/%5s} ", "PID");
169 if ((procstat_opts & PS_OPT_PERTHREAD) != 0)
170 xo_emit("{d:tb/%6s} ", "TID");
171 xo_emit("{d:tc/%-16s %-32s %14s}\n", "COMM", "RESOURCE",
172 "VALUE ");
173 }
174
175 if ((procstat_opts & PS_OPT_PERTHREAD) == 0) {
176 print_rusage(kipp);
177 return;
178 }
179
180 xo_emit("{e:process_id/%d}", kipp->ki_pid);
181 xo_emit("{e:command/%s}", kipp->ki_comm);
182 xo_open_container("threads");
183
184 kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD,
185 kipp->ki_pid, &count);
186 if (kip == NULL)
187 return;
188 kinfo_proc_sort(kip, count);
189 for (i = 0; i < count; i++) {
190 print_rusage(&kip[i]);
191 }
192
193 xo_close_container("threads");
194 procstat_freeprocs(procstat, kip);
195 }
196