1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
/*
* Copyright (c) 1999-2016 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
* Reserved. This file contains Original Code and/or Modifications of
* Original Code as defined in and that are subject to the Apple Public
* Source License Version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. Please obtain a copy of the
* License at http://www.apple.com/publicsource and read it before using
* this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License."
*
* @APPLE_LICENSE_HEADER_END@
*/
#include <System/sys/proc.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <unistd.h>
#include <mach/mach.h>
#include <mach/mach_types.h>
#include <mach/task.h>
#include <libproc.h>
#include <mach/vm_purgable.h>
#define USAGE "Usage: vm_purgeable_stat [-a | -p <pid> | -s <interval>]\n"
#define PRIV_ERR_MSG "The option specified needs root priveleges."
#define PROC_NAME_LEN 256
#define KB 1024
#define PURGEABLE_PRIO_LEVELS VM_VOLATILE_GROUP_SHIFT
static inline int purge_info_size_adjust(uint64_t size);
static inline char purge_info_unit(uint64_t size);
void print_header(int summary_view);
int get_system_tasks(task_array_t *tasks, mach_msg_type_number_t *count);
int get_task_from_pid(int pid, task_t *task);
void print_purge_info_task(task_t task, int pid);
void print_purge_info_task_array(task_array_t tasks, mach_msg_type_number_t count);
void print_purge_info_summary(int sleep_duration);
static inline int purge_info_size_adjust(uint64_t size)
{
while(size > KB)
size /= KB;
return (int)size;
}
static inline char purge_info_unit(uint64_t size)
{
char sizes[] = {'B', 'K', 'M', 'G', 'T'};
int index = 0;
while(size > KB) {
index++;
size /= KB;
}
return sizes[index];
}
void print_header(int summary_view)
{
if (!summary_view)
printf("%20s ", "Process-Name");
printf("%9s %9s %9s %9s %9s %9s %9s %9s %9s %9s %9s %9s %9s %9s %9s %9s %9s\n",
"FIFO-P0", "FIFO-P1", "FIFO-P2", "FIFO-P3",
"FIFO-P4", "FIFO-P5", "FIFO-P6", "FIFO-P7",
"OBSOLETE",
"LIFO-P0", "LIFO-P1", "LIFO-P2", "LIFO-P3",
"LIFO-P4", "LIFO-P5", "LIFO-P6", "LIFO-P7"
);
}
int get_task_from_pid(int pid, task_t *task)
{
kern_return_t kr;
if (geteuid() != 0) {
fprintf(stderr, "%s\n", PRIV_ERR_MSG);
return -1;
}
kr = task_inspect_for_pid(mach_task_self(), pid, task);
if (kr != KERN_SUCCESS) {
fprintf(stderr, "Failed to get task port for pid: %d\n", pid);
return -1;
}
return 0;
}
int get_system_tasks(task_array_t *tasks, mach_msg_type_number_t *count)
{
processor_set_name_array_t psets;
mach_msg_type_number_t psetCount;
mach_port_t pset_priv;
kern_return_t ret;
if (geteuid() != 0) {
fprintf(stderr, "%s\n", PRIV_ERR_MSG);
return -1;
}
ret = host_processor_sets(mach_host_self(), &psets, &psetCount);
if (ret != KERN_SUCCESS) {
fprintf(stderr, "host_processor_sets() failed: %s\n", mach_error_string(ret));
return -1;
}
if (psetCount != 1) {
fprintf(stderr, "Assertion Failure: pset count greater than one (%d)\n", psetCount);
return -1;
}
/* convert the processor-set-name port to a privileged port */
ret = host_processor_set_priv(mach_host_self(), psets[0], &pset_priv);
if (ret != KERN_SUCCESS) {
fprintf(stderr, "host_processor_set_priv() failed: %s\n", mach_error_string(ret));
return -1;
}
mach_port_deallocate(mach_task_self(), psets[0]);
vm_deallocate(mach_task_self(), (vm_address_t)psets, (vm_size_t)psetCount * sizeof(mach_port_t));
/* convert the processor-set-priv to a list of tasks for the processor set */
ret = processor_set_tasks_with_flavor(pset_priv, TASK_FLAVOR_INSPECT, tasks, count);
if (ret != KERN_SUCCESS) {
fprintf(stderr, "processor_set_tasks_with_flavor() failed: %s\n", mach_error_string(ret));
return -1;
}
mach_port_deallocate(mach_task_self(), pset_priv);
return 0;
}
void print_purge_info_task(task_t task, int pid)
{
task_purgable_info_t info;
kern_return_t kr;
int i;
char pname[PROC_NAME_LEN];
kr = task_purgable_info(task, &info);
if (kr != KERN_SUCCESS) {
fprintf(stderr, "(pid: %d) task_purgable_info() failed: %s\n", pid, mach_error_string(kr));
return;
}
if (0 == proc_name(pid, pname, PROC_NAME_LEN))
strncpy(pname, "Unknown", 7);
pname[20] = 0;
printf("%20s ", pname);
for (i=0; i<PURGEABLE_PRIO_LEVELS; i++)
printf("%4u/%3d%c ", (unsigned)info.fifo_data[i].count, purge_info_size_adjust(info.fifo_data[i].size), purge_info_unit(info.fifo_data[i].size));
printf("%4u/%3d%c ", (unsigned)info.obsolete_data.count, purge_info_size_adjust(info.obsolete_data.size), purge_info_unit(info.obsolete_data.size));
for (i=0; i<PURGEABLE_PRIO_LEVELS; i++)
printf("%4u/%3d%c ", (unsigned)info.lifo_data[i].count, purge_info_size_adjust(info.lifo_data[i].size), purge_info_unit(info.lifo_data[i].size));
printf("\n");
return;
}
void print_purge_info_task_array(task_array_t tasks, mach_msg_type_number_t count)
{
int i;
int pid;
for (i=0; i<count; i++) {
if (KERN_SUCCESS != pid_for_task(tasks[i], &pid))
continue;
print_purge_info_task(tasks[i], pid);
}
return;
}
void print_purge_info_summary(int sleep_duration)
{
host_purgable_info_data_t info;
mach_msg_type_number_t count;
kern_return_t result;
int i;
while(1) {
count = HOST_VM_PURGABLE_COUNT;
result = host_info(mach_host_self(), HOST_VM_PURGABLE, (host_info_t)&info, &count);
if (result != KERN_SUCCESS)
break;
for (i=0; i<PURGEABLE_PRIO_LEVELS; i++)
printf("%4u/%3d%c ", (unsigned)info.fifo_data[i].count, purge_info_size_adjust(info.fifo_data[i].size), purge_info_unit(info.fifo_data[i].size));
printf("%4u/%3d%c ", (unsigned)info.obsolete_data.count, purge_info_size_adjust(info.obsolete_data.size), purge_info_unit(info.obsolete_data.size));
for (i=0; i<PURGEABLE_PRIO_LEVELS; i++)
printf("%4u/%3d%c ", (unsigned)info.lifo_data[i].count, purge_info_size_adjust(info.lifo_data[i].size), purge_info_unit(info.lifo_data[i].size));
printf("\n");
sleep(sleep_duration);
}
return;
}
int main(int argc, char *argv[])
{
char ch;
int pid;
int sleep_duration;
task_array_t tasks;
task_t task;
mach_msg_type_number_t taskCount;
int noargs = 1;
while(1) {
ch = getopt(argc, argv, "ahp:s:");
if (ch == -1)
break;
noargs = 0;
switch(ch) {
case 'a':
if (get_system_tasks(&tasks, &taskCount) < 0)
break;
print_header(0);
print_purge_info_task_array(tasks, taskCount);
break;
case 'p':
pid = (int)strtol(optarg, NULL, 10);
if (pid < 0)
break;
if (get_task_from_pid(pid, &task) < 0)
break;
print_header(0);
print_purge_info_task(task, pid);
break;
case 's':
sleep_duration = (int)strtol(optarg, NULL, 10);
if (sleep_duration < 0)
break;
print_header(1);
print_purge_info_summary(sleep_duration);
break;
case '?':
case 'h':
default:
printf("%s", USAGE);
}
break;
}
if (noargs)
printf("%s", USAGE);
return 0;
}
|
