-
Notifications
You must be signed in to change notification settings - Fork 1
/
perf.h
380 lines (323 loc) · 9.55 KB
/
perf.h
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
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
/** ffsys: performance counters
2020, Simon Zolin */
/*
ffps_perf
ffthread_perf
ffps_perf_diff ffps_perf_add
fftime_monotonic
*/
#pragma once
#include <ffsys/string.h>
#include <ffsys/time.h>
enum FFPS_PERF {
FFPS_PERF_REALTIME = 1,
FFPS_PERF_CPUTIME = 2, // summarized CPU time
FFPS_PERF_SEPTIME = 4, // user and system CPU time
FFPS_PERF_RUSAGE = FFPS_PERF_SEPTIME | 8, // user/systime, pagefaults, maxrss, in/outblock, v/ivctxsw
};
struct ffps_perf {
fftime realtime;
fftime cputime; // UNIX: higher precision than usertime/systime
fftime usertime;
fftime systime;
ffuint pagefaults;
ffuint maxrss; // in Kb
ffuint inblock;
ffuint outblock;
ffuint vctxsw;
ffuint ivctxsw;
};
#ifdef FF_WIN
#include <psapi.h>
#include <winternl.h>
#include <ntstatus.h>
typedef NTSTATUS WINAPI (*_ff_NtQuerySystemInformation_t)(SYSTEM_INFORMATION_CLASS, PVOID, ULONG, PULONG);
FF_EXTERN _ff_NtQuerySystemInformation_t _ff_NtQuerySystemInformation;
typedef BOOL WINAPI (*_ff_GetProcessMemoryInfo_t)(HANDLE, PROCESS_MEMORY_COUNTERS*, DWORD);
FF_EXTERN _ff_GetProcessMemoryInfo_t _ff_GetProcessMemoryInfo;
FF_EXTERN LARGE_INTEGER _fftime_perffreq;
typedef struct _FF_SYSTEM_THREAD_INFORMATION {
LARGE_INTEGER Reserved1[3];
ULONG Reserved2;
PVOID StartAddress;
CLIENT_ID ClientId;
KPRIORITY Priority;
LONG BasePriority;
ULONG Reserved3; // ContextSwitchCount
ULONG ThreadState;
ULONG WaitReason;
} _FF_SYSTEM_THREAD_INFORMATION;
struct _ffpsinfo_s {
SYSTEM_PROCESS_INFORMATION psinfo;
_FF_SYSTEM_THREAD_INFORMATION threads[0];
};
/** Get information about all running processes and their threads */
static inline void* _ffps_info_get(void)
{
void *data;
const ffuint N_PROC = 50;
const ffuint N_THD = 10;
ffuint cap = N_PROC * (sizeof(SYSTEM_PROCESS_INFORMATION) + N_THD * sizeof(_FF_SYSTEM_THREAD_INFORMATION));
int r;
ULONG n;
if (_ff_NtQuerySystemInformation == NULL) {
HANDLE dl_ntdll; // Note: we don't unload it
if (NULL == (dl_ntdll = LoadLibraryExW(L"ntdll.dll", NULL, 0)))
return NULL;
if (NULL == (_ff_NtQuerySystemInformation = (_ff_NtQuerySystemInformation_t)(void*)GetProcAddress((HMODULE)dl_ntdll, "NtQuerySystemInformation")))
return NULL;
}
for (ffuint i = 0; i != 2; i++) {
if (NULL == (data = ffmem_alloc(cap))) {
r = -1;
break;
}
r = _ff_NtQuerySystemInformation(SystemProcessInformation, data, cap, &n);
if (r != STATUS_INFO_LENGTH_MISMATCH)
break;
ffmem_free(data);
data = NULL;
cap = ffint_align_ceil2(n, 4096);
}
if (r != 0 || n < sizeof(SYSTEM_PROCESS_INFORMATION)) {
ffmem_free(data);
return NULL;
}
return data;
}
/** Get the next _ffpsinfo_s object or return NULL if there's no more */
static inline struct _ffpsinfo_s* _ffps_info_next(struct _ffpsinfo_s *pi)
{
if (pi->psinfo.NextEntryOffset == 0)
return NULL;
return (struct _ffpsinfo_s*)((ffbyte*)pi + pi->psinfo.NextEntryOffset);
}
static inline void _fftime_from_filetime(fftime *t, const FILETIME *ft)
{
ffuint64 n = ((ffuint64)ft->dwHighDateTime << 32) | ft->dwLowDateTime;
t->sec = n / (1000000 * 10);
t->nsec = (n % (1000000 * 10)) * 100;
}
static inline fftime fftime_monotonic()
{
if (_fftime_perffreq.QuadPart == 0)
QueryPerformanceFrequency(&_fftime_perffreq);
LARGE_INTEGER val;
QueryPerformanceCounter(&val);
fftime t;
t.sec = val.QuadPart / _fftime_perffreq.QuadPart;
t.nsec = (val.QuadPart % _fftime_perffreq.QuadPart) * 1000000000 / _fftime_perffreq.QuadPart;
return t;
}
static inline int ffps_perf(struct ffps_perf *p, ffuint flags)
{
int rc = 0, r;
HANDLE ps = GetCurrentProcess();
if (flags & FFPS_PERF_REALTIME) {
p->realtime = fftime_monotonic();
}
if (flags & (FFPS_PERF_SEPTIME | FFPS_PERF_CPUTIME)) {
FILETIME cre, ex, kern, usr;
if (0 != (r = GetProcessTimes(ps, &cre, &ex, &kern, &usr))) {
_fftime_from_filetime(&p->systime, &kern);
_fftime_from_filetime(&p->usertime, &usr);
if (flags & FFPS_PERF_CPUTIME) {
p->cputime = p->systime;
fftime_add(&p->cputime, &p->usertime);
}
}
rc |= !r;
}
if (flags & FFPS_PERF_RUSAGE) {
IO_COUNTERS io;
if (0 != (r = GetProcessIoCounters(ps, &io))) {
p->inblock = io.ReadOperationCount;
p->outblock = io.WriteOperationCount;
}
rc |= !r;
}
if (flags & FFPS_PERF_RUSAGE) {
PROCESS_MEMORY_COUNTERS mc;
if (_ff_GetProcessMemoryInfo == NULL) {
HANDLE dl_psapi; // Note: we don't unload it
if (NULL != (dl_psapi = LoadLibraryExW(L"psapi.dll", NULL, 0))) {
_ff_GetProcessMemoryInfo = (_ff_GetProcessMemoryInfo_t)(void*)GetProcAddress((HMODULE)dl_psapi, "GetProcessMemoryInfo");
}
}
if (_ff_GetProcessMemoryInfo != NULL
&& 0 != (r = _ff_GetProcessMemoryInfo(ps, &mc, sizeof(mc)))) {
p->pagefaults = mc.PageFaultCount;
p->maxrss = mc.PeakWorkingSetSize / 1024;
}
rc |= !r;
}
if (flags & FFPS_PERF_RUSAGE) {
void *data = _ffps_info_get();
if (data == NULL) {
rc |= 1;
} else {
ffuint cur_pid = GetCurrentProcessId();
for (struct _ffpsinfo_s *pi = (struct _ffpsinfo_s*)data; pi != NULL; pi = _ffps_info_next(pi)) {
if ((ffsize)pi->psinfo.UniqueProcessId == cur_pid) {
for (ffuint i = 0; i != pi->psinfo.NumberOfThreads; i++) {
const _FF_SYSTEM_THREAD_INFORMATION *ti = &pi->threads[i];
p->vctxsw += ti->Reserved3;
}
break;
}
}
ffmem_free(data);
}
}
p->ivctxsw = 0;
return rc;
}
static inline int ffthread_perf(struct ffps_perf *p, ffuint flags)
{
int rc = 0, r;
HANDLE th = GetCurrentThread();
if (flags & FFPS_PERF_REALTIME) {
p->realtime = fftime_monotonic();
}
if (flags & (FFPS_PERF_SEPTIME | FFPS_PERF_CPUTIME)) {
FILETIME cre, ex, kern, usr;
if (0 != (r = GetThreadTimes(th, &cre, &ex, &kern, &usr))) {
_fftime_from_filetime(&p->systime, &kern);
_fftime_from_filetime(&p->usertime, &usr);
if (flags & FFPS_PERF_CPUTIME) {
p->cputime = p->systime;
fftime_add(&p->cputime, &p->usertime);
}
}
rc |= !r;
}
if (flags & FFPS_PERF_RUSAGE) {
void *data = _ffps_info_get();
if (data == NULL) {
rc |= 1;
} else {
ffuint cur_pid = GetCurrentProcessId();
ffuint cur_tid = GetCurrentThreadId();
for (struct _ffpsinfo_s *pi = (struct _ffpsinfo_s*)data; pi != NULL; pi = _ffps_info_next(pi)) {
if ((ffsize)pi->psinfo.UniqueProcessId == cur_pid) {
for (ffuint i = 0; i != pi->psinfo.NumberOfThreads; i++) {
const _FF_SYSTEM_THREAD_INFORMATION *ti = &pi->threads[i];
if ((ffsize)ti->ClientId.UniqueThread == cur_tid) {
p->vctxsw += ti->Reserved3;
break;
}
}
break;
}
}
ffmem_free(data);
}
}
p->maxrss = 0;
p->inblock = 0;
p->outblock = 0;
p->ivctxsw = 0;
return rc;
}
#else // UNIX:
#include <sys/resource.h>
static inline fftime fftime_monotonic()
{
fftime t = {};
struct timespec ts;
if (0 == clock_gettime(CLOCK_MONOTONIC, &ts))
t = fftime_from_timespec(&ts);
return t;
}
static inline int _ffps_perf(int who, struct ffps_perf *p, ffuint flags)
{
int rc = 0, r;
struct timespec ts;
if (flags & FFPS_PERF_REALTIME) {
if (0 == (r = clock_gettime(CLOCK_MONOTONIC, &ts))) {
p->realtime = fftime_from_timespec(&ts);
}
rc |= r;
}
if (flags & FFPS_PERF_RUSAGE) {
struct rusage u;
if (0 == (r = getrusage(who, &u))) {
p->usertime = fftime_from_timeval(&u.ru_utime);
p->systime = fftime_from_timeval(&u.ru_stime);
p->pagefaults = u.ru_minflt + u.ru_majflt;
p->maxrss = u.ru_maxrss;
p->inblock = u.ru_inblock;
p->outblock = u.ru_oublock;
p->vctxsw = u.ru_nvcsw;
p->ivctxsw = u.ru_nivcsw;
}
rc |= r;
}
if (flags & FFPS_PERF_CPUTIME) {
clockid_t c = (who == RUSAGE_SELF) ? CLOCK_PROCESS_CPUTIME_ID : CLOCK_THREAD_CPUTIME_ID;
if (0 == (r = clock_gettime(c, &ts))) {
p->cputime = fftime_from_timespec(&ts);
}
rc |= r;
}
return rc;
}
static inline int ffps_perf(struct ffps_perf *p, ffuint flags)
{
return _ffps_perf(RUSAGE_SELF, p, flags);
}
static inline int ffthread_perf(struct ffps_perf *p, ffuint flags)
{
#if defined FF_APPLE
int r = _ffps_perf(RUSAGE_SELF + 1, p, flags & ~FFPS_PERF_RUSAGE);
if (r == 0 && (flags & FFPS_PERF_RUSAGE)) {
r = -1;
errno = ENOSYS;
}
return r;
#else
return _ffps_perf(RUSAGE_THREAD, p, flags);
#endif
}
#endif
/** Get information about the process
info: initialize to zero before use
flags: enum FFPS_PERF
Return 0 on success */
static int ffps_perf(struct ffps_perf *info, ffuint flags);
/** Get information about the thread
info: initialize to zero before use
Windows: FFPS_PERF_RUSAGE isn't supported
flags: enum FFPS_PERF
Return 0 on success */
static int ffthread_perf(struct ffps_perf *info, ffuint flags);
/** Get the difference between two perf data objects */
static inline void ffps_perf_diff(const struct ffps_perf *start, struct ffps_perf *stop)
{
fftime_sub(&stop->realtime, &start->realtime);
fftime_sub(&stop->cputime, &start->cputime);
fftime_sub(&stop->usertime, &start->usertime);
fftime_sub(&stop->systime, &start->systime);
stop->pagefaults -= start->pagefaults;
stop->maxrss -= start->maxrss;
stop->inblock -= start->inblock;
stop->outblock -= start->outblock;
stop->vctxsw -= start->vctxsw;
stop->ivctxsw -= start->ivctxsw;
}
/** Add up two perf data objects */
static inline void ffps_perf_add(struct ffps_perf *dst, const struct ffps_perf *src)
{
fftime_add(&dst->realtime, &src->realtime);
fftime_add(&dst->cputime, &src->cputime);
fftime_add(&dst->usertime, &src->usertime);
fftime_add(&dst->systime, &src->systime);
dst->pagefaults += src->pagefaults;
dst->maxrss += src->maxrss;
dst->inblock += src->inblock;
dst->outblock += src->outblock;
dst->vctxsw += src->vctxsw;
dst->ivctxsw += src->ivctxsw;
}
/** Get monotonic time since some unspecified starting point */
static fftime fftime_monotonic();