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
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
|
// processinfo_win32.cpp
/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kControl
#include "mongo/platform/basic.h"
#include <bitset>
#include <boost/none.hpp>
#include <boost/optional.hpp>
#include <iostream>
#include <psapi.h>
#include "mongo/util/log.h"
#include "mongo/util/processinfo.h"
using namespace std;
using std::unique_ptr;
namespace mongo {
// dynamically link to psapi.dll (in case this version of Windows
// does not support what we need)
struct PsApiInit {
bool supported;
typedef BOOL(WINAPI* pQueryWorkingSetEx)(HANDLE hProcess, PVOID pv, DWORD cb);
pQueryWorkingSetEx QueryWSEx;
PsApiInit() {
HINSTANCE psapiLib = LoadLibrary(TEXT("psapi.dll"));
if (psapiLib) {
QueryWSEx =
reinterpret_cast<pQueryWorkingSetEx>(GetProcAddress(psapiLib, "QueryWorkingSetEx"));
if (QueryWSEx) {
supported = true;
return;
}
}
supported = false;
}
};
static PsApiInit* psapiGlobal = NULL;
int _wconvertmtos(SIZE_T s) {
return (int)(s / (1024 * 1024));
}
ProcessInfo::ProcessInfo(ProcessId pid) {}
ProcessInfo::~ProcessInfo() {}
// get the number of CPUs available to the current process
boost::optional<unsigned long> ProcessInfo::getNumCoresForProcess() {
DWORD_PTR process_mask, system_mask;
if (GetProcessAffinityMask(GetCurrentProcess(), &process_mask, &system_mask)) {
std::bitset<sizeof(process_mask) * 8> mask(process_mask);
if (mask.count() > 0)
return mask.count();
}
return boost::none;
}
bool ProcessInfo::supported() {
return true;
}
int ProcessInfo::getVirtualMemorySize() {
MEMORYSTATUSEX mse;
mse.dwLength = sizeof(mse);
BOOL status = GlobalMemoryStatusEx(&mse);
if (!status) {
DWORD gle = GetLastError();
error() << "GlobalMemoryStatusEx failed with " << errnoWithDescription(gle);
fassert(28621, status);
}
DWORDLONG x = (mse.ullTotalVirtual - mse.ullAvailVirtual) / (1024 * 1024);
invariant(x <= 0x7fffffff);
return (int)x;
}
int ProcessInfo::getResidentSize() {
PROCESS_MEMORY_COUNTERS pmc;
BOOL status = GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc));
if (!status) {
DWORD gle = GetLastError();
error() << "GetProcessMemoryInfo failed with " << errnoWithDescription(gle);
fassert(28622, status);
}
return _wconvertmtos(pmc.WorkingSetSize);
}
double ProcessInfo::getSystemMemoryPressurePercentage() {
MEMORYSTATUSEX mse;
mse.dwLength = sizeof(mse);
BOOL status = GlobalMemoryStatusEx(&mse);
if (!status) {
DWORD gle = GetLastError();
error() << "GlobalMemoryStatusEx failed with " << errnoWithDescription(gle);
fassert(28623, status);
}
DWORDLONG totalPageFile = mse.ullTotalPageFile;
if (totalPageFile == 0) {
return false;
}
// If the page file is >= 50%, say we are low on system memory
// If the page file is >= 75%, we are running very low on system memory
//
DWORDLONG highWatermark = totalPageFile / 2;
DWORDLONG veryHighWatermark = 3 * (totalPageFile / 4);
DWORDLONG usedPageFile = mse.ullTotalPageFile - mse.ullAvailPageFile;
// Below the watermark, we are fine
// Also check we will not do a divide by zero below
if (usedPageFile < highWatermark || veryHighWatermark <= highWatermark) {
return 0.0;
}
// Above the high watermark, we tell MMapV1 how much to remap
// < 1.0, we have some pressure, but not much so do not be very aggressive
// 1.0 = we are at very high watermark, remap everything
// > 1.0, the user may run out of memory, remap everything
// i.e., Example (N - 50) / (75 - 50)
return static_cast<double>(usedPageFile - highWatermark) / (veryHighWatermark - highWatermark);
}
void ProcessInfo::getExtraInfo(BSONObjBuilder& info) {
MEMORYSTATUSEX mse;
mse.dwLength = sizeof(mse);
PROCESS_MEMORY_COUNTERS pmc;
if (GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc))) {
info.append("page_faults", static_cast<int>(pmc.PageFaultCount));
info.append("usagePageFileMB", static_cast<int>(pmc.PagefileUsage / 1024 / 1024));
}
if (GlobalMemoryStatusEx(&mse)) {
info.append("totalPageFileMB", static_cast<int>(mse.ullTotalPageFile / 1024 / 1024));
info.append("availPageFileMB", static_cast<int>(mse.ullAvailPageFile / 1024 / 1024));
info.append("ramMB", static_cast<int>(mse.ullTotalPhys / 1024 / 1024));
}
#ifndef _WIN64
BOOL wow64Process;
BOOL retWow64 = IsWow64Process(GetCurrentProcess(), &wow64Process);
info.append("wow64Process", static_cast<bool>(retWow64 && wow64Process));
#endif
}
bool getFileVersion(const char* filePath, DWORD& fileVersionMS, DWORD& fileVersionLS) {
DWORD verSize = GetFileVersionInfoSizeA(filePath, NULL);
if (verSize == 0) {
DWORD gle = GetLastError();
warning() << "GetFileVersionInfoSizeA on " << filePath << " failed with "
<< errnoWithDescription(gle);
return false;
}
std::unique_ptr<char[]> verData(new char[verSize]);
if (GetFileVersionInfoA(filePath, NULL, verSize, verData.get()) == 0) {
DWORD gle = GetLastError();
warning() << "GetFileVersionInfoSizeA on " << filePath << " failed with "
<< errnoWithDescription(gle);
return false;
}
UINT size;
VS_FIXEDFILEINFO* verInfo;
if (VerQueryValueA(verData.get(), "\\", (LPVOID*)&verInfo, &size) == 0) {
DWORD gle = GetLastError();
warning() << "VerQueryValueA on " << filePath << " failed with "
<< errnoWithDescription(gle);
return false;
}
if (size != sizeof(VS_FIXEDFILEINFO)) {
warning() << "VerQueryValueA on " << filePath << " returned structure with unexpected size";
return false;
}
fileVersionMS = verInfo->dwFileVersionMS;
fileVersionLS = verInfo->dwFileVersionLS;
return true;
}
// If the version of the ntfs.sys driver shows that the KB2731284 hotfix or a later update
// is installed, zeroing out data files is unnecessary. The file version numbers used below
// are taken from the Hotfix File Information at http://support.microsoft.com/kb/2731284.
// In https://support.microsoft.com/en-us/kb/3121255, the LDR branch prefix for SP1 is now
// .23xxxx since patch numbers have rolled over to the next range.
// Windows 7 RTM has not received patches for KB3121255.
bool isKB2731284OrLaterUpdateInstalled() {
UINT pathBufferSize = GetSystemDirectoryA(NULL, 0);
if (pathBufferSize == 0) {
DWORD gle = GetLastError();
warning() << "GetSystemDirectoryA failed with " << errnoWithDescription(gle);
return false;
}
std::unique_ptr<char[]> systemDirectory(new char[pathBufferSize]);
UINT systemDirectoryPathLen;
systemDirectoryPathLen = GetSystemDirectoryA(systemDirectory.get(), pathBufferSize);
if (systemDirectoryPathLen == 0) {
DWORD gle = GetLastError();
warning() << "GetSystemDirectoryA failed with " << errnoWithDescription(gle);
return false;
}
if (systemDirectoryPathLen != pathBufferSize - 1) {
warning() << "GetSystemDirectoryA returned unexpected path length";
return false;
}
string ntfsDotSysPath = systemDirectory.get();
if (ntfsDotSysPath.back() != '\\') {
ntfsDotSysPath.append("\\");
}
ntfsDotSysPath.append("drivers\\ntfs.sys");
DWORD fileVersionMS;
DWORD fileVersionLS;
if (getFileVersion(ntfsDotSysPath.c_str(), fileVersionMS, fileVersionLS)) {
WORD fileVersionFirstNumber = HIWORD(fileVersionMS);
WORD fileVersionSecondNumber = LOWORD(fileVersionMS);
WORD fileVersionThirdNumber = HIWORD(fileVersionLS);
WORD fileVersionFourthNumber = LOWORD(fileVersionLS);
if (fileVersionFirstNumber == 6 && fileVersionSecondNumber == 1 &&
fileVersionThirdNumber == 7600 && fileVersionFourthNumber >= 21296 &&
fileVersionFourthNumber <= 21999) {
return true;
} else if (fileVersionFirstNumber == 6 && fileVersionSecondNumber == 1 &&
fileVersionThirdNumber == 7601 && fileVersionFourthNumber >= 22083 &&
fileVersionFourthNumber <= 23999) {
return true;
}
}
return false;
}
void ProcessInfo::SystemInfo::collectSystemInfo() {
BSONObjBuilder bExtra;
stringstream verstr;
OSVERSIONINFOEX osvi; // os version
MEMORYSTATUSEX mse; // memory stats
SYSTEM_INFO ntsysinfo; // system stats
// get basic processor properties
GetNativeSystemInfo(&ntsysinfo);
addrSize = (ntsysinfo.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64 ? 64 : 32);
numCores = ntsysinfo.dwNumberOfProcessors;
pageSize = static_cast<unsigned long long>(ntsysinfo.dwPageSize);
bExtra.append("pageSize", static_cast<long long>(pageSize));
// get memory info
mse.dwLength = sizeof(mse);
if (GlobalMemoryStatusEx(&mse)) {
memSize = mse.ullTotalPhys;
}
// get OS version info
ZeroMemory(&osvi, sizeof(osvi));
osvi.dwOSVersionInfoSize = sizeof(osvi);
#pragma warning(push)
// GetVersionEx is deprecated
#pragma warning(disable : 4996)
if (GetVersionEx((OSVERSIONINFO*)&osvi)) {
#pragma warning(pop)
verstr << osvi.dwMajorVersion << "." << osvi.dwMinorVersion;
if (osvi.wServicePackMajor)
verstr << " SP" << osvi.wServicePackMajor;
verstr << " (build " << osvi.dwBuildNumber << ")";
osName = "Microsoft ";
switch (osvi.dwMajorVersion) {
case 10:
if (osvi.wProductType == VER_NT_WORKSTATION)
osName += "Windows 10";
else
osName += "Windows Server 2016";
break;
case 6:
switch (osvi.dwMinorVersion) {
case 3:
if (osvi.wProductType == VER_NT_WORKSTATION)
osName += "Windows 8.1";
else
osName += "Windows Server 2012 R2";
break;
case 2:
if (osvi.wProductType == VER_NT_WORKSTATION)
osName += "Windows 8";
else
osName += "Windows Server 2012";
break;
case 1:
if (osvi.wProductType == VER_NT_WORKSTATION)
osName += "Windows 7";
else
osName += "Windows Server 2008 R2";
// Windows 6.1 is either Windows 7 or Windows 2008 R2. There is no SP2 for
// either of these two operating systems, but the check will hold if one
// were released. This code assumes that SP2 will include fix for
// http://support.microsoft.com/kb/2731284.
//
if ((osvi.wServicePackMajor >= 0) && (osvi.wServicePackMajor < 2)) {
if (isKB2731284OrLaterUpdateInstalled()) {
fileZeroNeeded = false;
} else {
fileZeroNeeded = true;
}
}
break;
case 0:
if (osvi.wProductType == VER_NT_WORKSTATION)
osName += "Windows Vista";
else
osName += "Windows Server 2008";
break;
default:
osName += "Windows NT version ";
osName += verstr.str();
break;
}
break;
default:
osName += "Windows";
break;
}
} else {
// unable to get any version data
osName += "Windows NT";
}
if (ntsysinfo.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) {
cpuArch = "x86_64";
} else if (ntsysinfo.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_INTEL) {
cpuArch = "x86";
} else if (ntsysinfo.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_IA64) {
cpuArch = "ia64";
} else {
cpuArch = "unknown";
}
osType = "Windows";
osVersion = verstr.str();
hasNuma = checkNumaEnabled();
_extraStats = bExtra.obj();
if (psapiGlobal == NULL) {
psapiGlobal = new PsApiInit();
}
}
bool ProcessInfo::checkNumaEnabled() {
typedef BOOL(WINAPI * LPFN_GLPI)(PSYSTEM_LOGICAL_PROCESSOR_INFORMATION, PDWORD);
DWORD returnLength = 0;
DWORD numaNodeCount = 0;
unique_ptr<SYSTEM_LOGICAL_PROCESSOR_INFORMATION[]> buffer;
LPFN_GLPI glpi(reinterpret_cast<LPFN_GLPI>(
GetProcAddress(GetModuleHandleW(L"kernel32"), "GetLogicalProcessorInformation")));
if (glpi == NULL) {
return false;
}
DWORD returnCode = 0;
do {
returnCode = glpi(buffer.get(), &returnLength);
if (returnCode == FALSE) {
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
buffer.reset(reinterpret_cast<PSYSTEM_LOGICAL_PROCESSOR_INFORMATION>(
new BYTE[returnLength]));
} else {
DWORD gle = GetLastError();
warning() << "GetLogicalProcessorInformation failed with "
<< errnoWithDescription(gle);
return false;
}
}
} while (returnCode == FALSE);
PSYSTEM_LOGICAL_PROCESSOR_INFORMATION ptr = buffer.get();
unsigned int byteOffset = 0;
while (byteOffset + sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION) <= returnLength) {
if (ptr->Relationship == RelationNumaNode) {
// Non-NUMA systems report a single record of this type.
numaNodeCount++;
}
byteOffset += sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
ptr++;
}
// For non-NUMA machines, the count is 1
return numaNodeCount > 1;
}
bool ProcessInfo::blockCheckSupported() {
sysInfo(); // Initialize SystemInfo, which calls collectSystemInfo(), which creates
// psapiGlobal.
return psapiGlobal->supported;
}
bool ProcessInfo::blockInMemory(const void* start) {
#if 0
// code for printing out page fault addresses and pc's --
// this could be useful for targetting heavy pagefault locations in the code
static BOOL bstat = InitializeProcessForWsWatch( GetCurrentProcess() );
PSAPI_WS_WATCH_INFORMATION_EX wiex[30];
DWORD bufsize = sizeof(wiex);
bstat = GetWsChangesEx( GetCurrentProcess(), &wiex[0], &bufsize );
if (bstat) {
for (int i=0; i<30; i++) {
if (wiex[i].BasicInfo.FaultingPc == 0) break;
cout << "faulting pc = " << wiex[i].BasicInfo.FaultingPc <<
" address = " << wiex[i].BasicInfo.FaultingVa <<
" thread id = " << wiex[i].FaultingThreadId << endl;
}
}
#endif
PSAPI_WORKING_SET_EX_INFORMATION wsinfo;
wsinfo.VirtualAddress = const_cast<void*>(start);
BOOL result = psapiGlobal->QueryWSEx(GetCurrentProcess(), &wsinfo, sizeof(wsinfo));
if (result)
if (wsinfo.VirtualAttributes.Valid)
return true;
return false;
}
bool ProcessInfo::pagesInMemory(const void* start, size_t numPages, vector<char>* out) {
out->resize(numPages);
unique_ptr<PSAPI_WORKING_SET_EX_INFORMATION[]> wsinfo(
new PSAPI_WORKING_SET_EX_INFORMATION[numPages]);
const void* startOfFirstPage = alignToStartOfPage(start);
for (size_t i = 0; i < numPages; i++) {
wsinfo[i].VirtualAddress = reinterpret_cast<void*>(
reinterpret_cast<unsigned long long>(startOfFirstPage) + i * getPageSize());
}
BOOL result = psapiGlobal->QueryWSEx(
GetCurrentProcess(), wsinfo.get(), sizeof(PSAPI_WORKING_SET_EX_INFORMATION) * numPages);
if (!result)
return false;
for (size_t i = 0; i < numPages; ++i) {
(*out)[i] = wsinfo[i].VirtualAttributes.Valid ? 1 : 0;
}
return true;
}
}
|