VBoxServiceStats.cpp@ 44824

Last change on this file since 44824 was 44528, checked in by vboxsync, 12 years ago
header (C) fixes
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1	/* $Id: VBoxServiceStats.cpp 44528 2013-02-04 14:27:54Z vboxsync $ */
2	/** @file
3	* VBoxStats - Guest statistics notification
4	*/
5
6	/*
7	* Copyright (C) 2006-2012 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	/*******************************************************************************
19	* Header Files *
20	*******************************************************************************/
21	#if defined(RT_OS_WINDOWS)
22	# ifdef TARGET_NT4
23	# undef _WIN32_WINNT
24	# define _WIN32_WINNT 0x501
25	# endif
26	# include <windows.h>
27	# include <psapi.h>
28	# include <winternl.h>
29
30	#elif defined(RT_OS_LINUX)
31	# include <iprt/ctype.h>
32	# include <iprt/stream.h>
33	# include <unistd.h>
34
35	#elif defined(RT_OS_SOLARIS)
36	# include <kstat.h>
37	# include <sys/sysinfo.h>
38	# include <unistd.h>
39	#else
40	/** @todo port me. */
41
42	#endif
43
44	#include <iprt/assert.h>
45	#include <iprt/mem.h>
46	#include <VBox/param.h>
47	#include <iprt/semaphore.h>
48	#include <iprt/string.h>
49	#include <iprt/system.h>
50	#include <iprt/time.h>
51	#include <iprt/thread.h>
52	#include <VBox/VBoxGuestLib.h>
53	#include "VBoxServiceInternal.h"
54	#include "VBoxServiceUtils.h"
55
56
57	/*******************************************************************************
58	* Structures and Typedefs *
59	*******************************************************************************/
60	typedef struct _VBOXSTATSCONTEXT
61	{
62	RTMSINTERVAL cMsStatInterval;
63
64	uint64_t au64LastCpuLoad_Idle[VMM_MAX_CPU_COUNT];
65	uint64_t au64LastCpuLoad_Kernel[VMM_MAX_CPU_COUNT];
66	uint64_t au64LastCpuLoad_User[VMM_MAX_CPU_COUNT];
67	uint64_t au64LastCpuLoad_Nice[VMM_MAX_CPU_COUNT];
68
69	#ifdef RT_OS_WINDOWS
70	NTSTATUS (WINAPI *pfnNtQuerySystemInformation)(SYSTEM_INFORMATION_CLASS SystemInformationClass, PVOID SystemInformation, ULONG SystemInformationLength, PULONG ReturnLength);
71	void (WINAPI *pfnGlobalMemoryStatusEx)(LPMEMORYSTATUSEX lpBuffer);
72	BOOL (WINAPI *pfnGetPerformanceInfo)(PPERFORMANCE_INFORMATION pPerformanceInformation, DWORD cb);
73	#endif
74	} VBOXSTATSCONTEXT;
75
76
77	/*******************************************************************************
78	* Global Variables *
79	*******************************************************************************/
80	static VBOXSTATSCONTEXT gCtx = {0};
81
82	/** The semaphore we're blocking on. */
83	static RTSEMEVENTMULTI g_VMStatEvent = NIL_RTSEMEVENTMULTI;
84
85
86	/** @copydoc VBOXSERVICE::pfnPreInit */
87	static DECLCALLBACK(int) VBoxServiceVMStatsPreInit(void)
88	{
89	return VINF_SUCCESS;
90	}
91
92
93	/** @copydoc VBOXSERVICE::pfnOption */
94	static DECLCALLBACK(int) VBoxServiceVMStatsOption(const char ppszShort, int argc, char argv, int *pi)
95	{
96	NOREF(ppszShort);
97	NOREF(argc);
98	NOREF(argv);
99	NOREF(pi);
100
101	return -1;
102	}
103
104
105	/** @copydoc VBOXSERVICE::pfnInit */
106	static DECLCALLBACK(int) VBoxServiceVMStatsInit(void)
107	{
108	VBoxServiceVerbose(3, "VBoxServiceVMStatsInit\n");
109
110	int rc = RTSemEventMultiCreate(&g_VMStatEvent);
111	AssertRCReturn(rc, rc);
112
113	gCtx.cMsStatInterval = 0; /* default; update disabled */
114	RT_ZERO(gCtx.au64LastCpuLoad_Idle);
115	RT_ZERO(gCtx.au64LastCpuLoad_Kernel);
116	RT_ZERO(gCtx.au64LastCpuLoad_User);
117	RT_ZERO(gCtx.au64LastCpuLoad_Nice);
118
119	rc = VbglR3StatQueryInterval(&gCtx.cMsStatInterval);
120	if (RT_SUCCESS(rc))
121	VBoxServiceVerbose(3, "VBoxStatsInit: New statistics interval %u seconds\n", gCtx.cMsStatInterval);
122	else
123	VBoxServiceVerbose(3, "VBoxStatsInit: DeviceIoControl failed with %d\n", rc);
124
125	#ifdef RT_OS_WINDOWS
126	/** @todo Use RTLdr instead of LoadLibrary/GetProcAddress here! */
127
128	/* NtQuerySystemInformation might be dropped in future releases, so load it dynamically as per Microsoft's recommendation */
129	HMODULE hMod = LoadLibrary("NTDLL.DLL");
130	if (hMod)
131	{
132	(uintptr_t )&gCtx.pfnNtQuerySystemInformation = (uintptr_t)GetProcAddress(hMod, "NtQuerySystemInformation");
133	if (gCtx.pfnNtQuerySystemInformation)
134	VBoxServiceVerbose(3, "VBoxStatsInit: gCtx.pfnNtQuerySystemInformation = %x\n", gCtx.pfnNtQuerySystemInformation);
135	else
136	{
137	VBoxServiceVerbose(3, "VBoxStatsInit: NTDLL.NtQuerySystemInformation not found!\n");
138	return VERR_SERVICE_DISABLED;
139	}
140	}
141
142	/* GlobalMemoryStatus is win2k and up, so load it dynamically */
143	hMod = LoadLibrary("KERNEL32.DLL");
144	if (hMod)
145	{
146	(uintptr_t )&gCtx.pfnGlobalMemoryStatusEx = (uintptr_t)GetProcAddress(hMod, "GlobalMemoryStatusEx");
147	if (gCtx.pfnGlobalMemoryStatusEx)
148	VBoxServiceVerbose(3, "VBoxStatsInit: gCtx.GlobalMemoryStatusEx = %x\n", gCtx.pfnGlobalMemoryStatusEx);
149	else
150	{
151	/** @todo Now fails in NT4; do we care? */
152	VBoxServiceVerbose(3, "VBoxStatsInit: KERNEL32.GlobalMemoryStatusEx not found!\n");
153	return VERR_SERVICE_DISABLED;
154	}
155	}
156	/* GetPerformanceInfo is xp and up, so load it dynamically */
157	hMod = LoadLibrary("PSAPI.DLL");
158	if (hMod)
159	{
160	(uintptr_t )&gCtx.pfnGetPerformanceInfo = (uintptr_t)GetProcAddress(hMod, "GetPerformanceInfo");
161	if (gCtx.pfnGetPerformanceInfo)
162	VBoxServiceVerbose(3, "VBoxStatsInit: gCtx.pfnGetPerformanceInfo= %x\n", gCtx.pfnGetPerformanceInfo);
163	/* failure is not fatal */
164	}
165	#endif /* RT_OS_WINDOWS */
166
167	return VINF_SUCCESS;
168	}
169
170
171	/**
172	* Gathers VM statistics and reports them to the host.
173	*/
174	static void VBoxServiceVMStatsReport(void)
175	{
176	#if defined(RT_OS_WINDOWS)
177	SYSTEM_INFO systemInfo;
178	PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION pProcInfo;
179	MEMORYSTATUSEX memStatus;
180	uint32_t cbStruct;
181	DWORD cbReturned;
182
183	Assert(gCtx.pfnGlobalMemoryStatusEx && gCtx.pfnNtQuerySystemInformation);
184	if ( !gCtx.pfnGlobalMemoryStatusEx
185	\|\| !gCtx.pfnNtQuerySystemInformation)
186	return;
187
188	/* Clear the report so we don't report garbage should NtQuerySystemInformation
189	behave in an unexpected manner. */
190	VMMDevReportGuestStats req;
191	RT_ZERO(req);
192
193	/* Query and report guest statistics */
194	GetSystemInfo(&systemInfo);
195
196	memStatus.dwLength = sizeof(memStatus);
197	gCtx.pfnGlobalMemoryStatusEx(&memStatus);
198
199	req.guestStats.u32PageSize = systemInfo.dwPageSize;
200	req.guestStats.u32PhysMemTotal = (uint32_t)(memStatus.ullTotalPhys / _4K);
201	req.guestStats.u32PhysMemAvail = (uint32_t)(memStatus.ullAvailPhys / _4K);
202	/* The current size of the committed memory limit, in bytes. This is physical
203	memory plus the size of the page file, minus a small overhead. */
204	req.guestStats.u32PageFileSize = (uint32_t)(memStatus.ullTotalPageFile / _4K) - req.guestStats.u32PhysMemTotal;
205	req.guestStats.u32MemoryLoad = memStatus.dwMemoryLoad;
206	req.guestStats.u32StatCaps = VBOX_GUEST_STAT_PHYS_MEM_TOTAL
207	\| VBOX_GUEST_STAT_PHYS_MEM_AVAIL
208	\| VBOX_GUEST_STAT_PAGE_FILE_SIZE
209	\| VBOX_GUEST_STAT_MEMORY_LOAD;
210	#ifdef VBOX_WITH_MEMBALLOON
211	req.guestStats.u32PhysMemBalloon = VBoxServiceBalloonQueryPages(_4K);
212	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_PHYS_MEM_BALLOON;
213	#else
214	req.guestStats.u32PhysMemBalloon = 0;
215	#endif
216
217	if (gCtx.pfnGetPerformanceInfo)
218	{
219	PERFORMANCE_INFORMATION perfInfo;
220
221	if (gCtx.pfnGetPerformanceInfo(&perfInfo, sizeof(perfInfo)))
222	{
223	req.guestStats.u32Processes = perfInfo.ProcessCount;
224	req.guestStats.u32Threads = perfInfo.ThreadCount;
225	req.guestStats.u32Handles = perfInfo.HandleCount;
226	req.guestStats.u32MemCommitTotal = perfInfo.CommitTotal; /* already in pages */
227	req.guestStats.u32MemKernelTotal = perfInfo.KernelTotal; /* already in pages */
228	req.guestStats.u32MemKernelPaged = perfInfo.KernelPaged; /* already in pages */
229	req.guestStats.u32MemKernelNonPaged = perfInfo.KernelNonpaged; /* already in pages */
230	req.guestStats.u32MemSystemCache = perfInfo.SystemCache; /* already in pages */
231	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_PROCESSES \| VBOX_GUEST_STAT_THREADS \| VBOX_GUEST_STAT_HANDLES
232	\| VBOX_GUEST_STAT_MEM_COMMIT_TOTAL \| VBOX_GUEST_STAT_MEM_KERNEL_TOTAL
233	\| VBOX_GUEST_STAT_MEM_KERNEL_PAGED \| VBOX_GUEST_STAT_MEM_KERNEL_NONPAGED
234	\| VBOX_GUEST_STAT_MEM_SYSTEM_CACHE;
235	}
236	else
237	VBoxServiceVerbose(3, "VBoxServiceVMStatsReport: GetPerformanceInfo failed with %d\n", GetLastError());
238	}
239
240	/* Query CPU load information */
241	cbStruct = systemInfo.dwNumberOfProcessors * sizeof(SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION);
242	pProcInfo = (PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION)RTMemAlloc(cbStruct);
243	if (!pProcInfo)
244	return;
245
246	/* Unfortunately GetSystemTimes is XP SP1 and up only, so we need to use the semi-undocumented NtQuerySystemInformation */
247	NTSTATUS rc = gCtx.pfnNtQuerySystemInformation(SystemProcessorPerformanceInformation, pProcInfo, cbStruct, &cbReturned);
248	if ( !rc
249	&& cbReturned == cbStruct)
250	{
251	if (gCtx.au64LastCpuLoad_Kernel == 0)
252	{
253	/* first time */
254	gCtx.au64LastCpuLoad_Idle[0] = pProcInfo->IdleTime.QuadPart;
255	gCtx.au64LastCpuLoad_Kernel[0] = pProcInfo->KernelTime.QuadPart;
256	gCtx.au64LastCpuLoad_User[0] = pProcInfo->UserTime.QuadPart;
257
258	Sleep(250);
259
260	rc = gCtx.pfnNtQuerySystemInformation(SystemProcessorPerformanceInformation, pProcInfo, cbStruct, &cbReturned);
261	Assert(!rc);
262	}
263
264	uint64_t deltaIdle = (pProcInfo->IdleTime.QuadPart - gCtx.au64LastCpuLoad_Idle[0]);
265	uint64_t deltaKernel = (pProcInfo->KernelTime.QuadPart - gCtx.au64LastCpuLoad_Kernel[0]);
266	uint64_t deltaUser = (pProcInfo->UserTime.QuadPart - gCtx.au64LastCpuLoad_User[0]);
267	deltaKernel -= deltaIdle; /* idle time is added to kernel time */
268	uint64_t ullTotalTime = deltaIdle + deltaKernel + deltaUser;
269	if (ullTotalTime == 0) /* Prevent division through zero. */
270	ullTotalTime = 1;
271
272	req.guestStats.u32CpuLoad_Idle = (uint32_t)(deltaIdle * 100 / ullTotalTime);
273	req.guestStats.u32CpuLoad_Kernel = (uint32_t)(deltaKernel* 100 / ullTotalTime);
274	req.guestStats.u32CpuLoad_User = (uint32_t)(deltaUser * 100 / ullTotalTime);
275
276	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_CPU_LOAD_IDLE \| VBOX_GUEST_STAT_CPU_LOAD_KERNEL \| VBOX_GUEST_STAT_CPU_LOAD_USER;
277
278	gCtx.au64LastCpuLoad_Idle[0] = pProcInfo->IdleTime.QuadPart;
279	gCtx.au64LastCpuLoad_Kernel[0] = pProcInfo->KernelTime.QuadPart;
280	gCtx.au64LastCpuLoad_User[0] = pProcInfo->UserTime.QuadPart;
281	/** @todo SMP: report details for each CPU? */
282	}
283
284	for (uint32_t i = 0; i < systemInfo.dwNumberOfProcessors; i++)
285	{
286	req.guestStats.u32CpuId = i;
287
288	rc = VbglR3StatReport(&req);
289	if (RT_SUCCESS(rc))
290	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: new statistics (CPU %u) reported successfully!\n", i);
291	else
292	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: DeviceIoControl (stats report) failed with %d\n", GetLastError());
293	}
294
295	RTMemFree(pProcInfo);
296
297	#elif defined(RT_OS_LINUX)
298	VMMDevReportGuestStats req;
299	RT_ZERO(req);
300	PRTSTREAM pStrm;
301	char szLine[256];
302	char *psz;
303
304	int rc = RTStrmOpen("/proc/meminfo", "r", &pStrm);
305	if (RT_SUCCESS(rc))
306	{
307	uint64_t u64Kb;
308	uint64_t u64Total = 0, u64Free = 0, u64Buffers = 0, u64Cached = 0, u64PagedTotal = 0;
309	for (;;)
310	{
311	rc = RTStrmGetLine(pStrm, szLine, sizeof(szLine));
312	if (RT_FAILURE(rc))
313	break;
314	if (strstr(szLine, "MemTotal:") == szLine)
315	{
316	rc = RTStrToUInt64Ex(RTStrStripL(&szLine[9]), &psz, 0, &u64Kb);
317	if (RT_SUCCESS(rc))
318	u64Total = u64Kb * _1K;
319	}
320	else if (strstr(szLine, "MemFree:") == szLine)
321	{
322	rc = RTStrToUInt64Ex(RTStrStripL(&szLine[8]), &psz, 0, &u64Kb);
323	if (RT_SUCCESS(rc))
324	u64Free = u64Kb * _1K;
325	}
326	else if (strstr(szLine, "Buffers:") == szLine)
327	{
328	rc = RTStrToUInt64Ex(RTStrStripL(&szLine[8]), &psz, 0, &u64Kb);
329	if (RT_SUCCESS(rc))
330	u64Buffers = u64Kb * _1K;
331	}
332	else if (strstr(szLine, "Cached:") == szLine)
333	{
334	rc = RTStrToUInt64Ex(RTStrStripL(&szLine[7]), &psz, 0, &u64Kb);
335	if (RT_SUCCESS(rc))
336	u64Cached = u64Kb * _1K;
337	}
338	else if (strstr(szLine, "SwapTotal:") == szLine)
339	{
340	rc = RTStrToUInt64Ex(RTStrStripL(&szLine[10]), &psz, 0, &u64Kb);
341	if (RT_SUCCESS(rc))
342	u64PagedTotal = u64Kb * _1K;
343	}
344	}
345	req.guestStats.u32PhysMemTotal = u64Total / _4K;
346	req.guestStats.u32PhysMemAvail = (u64Free + u64Buffers + u64Cached) / _4K;
347	req.guestStats.u32MemSystemCache = (u64Buffers + u64Cached) / _4K;
348	req.guestStats.u32PageFileSize = u64PagedTotal / _4K;
349	RTStrmClose(pStrm);
350	}
351	else
352	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: memory info not available!\n");
353
354	req.guestStats.u32PageSize = getpagesize();
355	req.guestStats.u32StatCaps = VBOX_GUEST_STAT_PHYS_MEM_TOTAL
356	\| VBOX_GUEST_STAT_PHYS_MEM_AVAIL
357	\| VBOX_GUEST_STAT_MEM_SYSTEM_CACHE
358	\| VBOX_GUEST_STAT_PAGE_FILE_SIZE;
359	#ifdef VBOX_WITH_MEMBALLOON
360	req.guestStats.u32PhysMemBalloon = VBoxServiceBalloonQueryPages(_4K);
361	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_PHYS_MEM_BALLOON;
362	#else
363	req.guestStats.u32PhysMemBalloon = 0;
364	#endif
365
366
367	/** @todo req.guestStats.u32Threads */
368	/** @todo req.guestStats.u32Processes */
369	/* req.guestStats.u32Handles doesn't make sense here. */
370	/** @todo req.guestStats.u32MemoryLoad */
371	/** @todo req.guestStats.u32MemCommitTotal */
372	/** @todo req.guestStats.u32MemKernelTotal */
373	/** @todo req.guestStats.u32MemKernelPaged, make any sense? = u32MemKernelTotal? */
374	/** @todo req.guestStats.u32MemKernelNonPaged, make any sense? = 0? */
375
376	bool fCpuInfoAvail = false;
377	rc = RTStrmOpen("/proc/stat", "r", &pStrm);
378	if (RT_SUCCESS(rc))
379	{
380	for (;;)
381	{
382	rc = RTStrmGetLine(pStrm, szLine, sizeof(szLine));
383	if (RT_FAILURE(rc))
384	break;
385	if ( strstr(szLine, "cpu") == szLine
386	&& strlen(szLine) > 3
387	&& RT_C_IS_DIGIT(szLine[3]))
388	{
389	uint32_t u32CpuId;
390	rc = RTStrToUInt32Ex(&szLine[3], &psz, 0, &u32CpuId);
391	if (u32CpuId < VMM_MAX_CPU_COUNT)
392	{
393	uint64_t u64User = 0;
394	if (RT_SUCCESS(rc))
395	rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64User);
396
397	uint64_t u64Nice = 0;
398	if (RT_SUCCESS(rc))
399	rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64Nice);
400
401	uint64_t u64System = 0;
402	if (RT_SUCCESS(rc))
403	rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64System);
404
405	uint64_t u64Idle = 0;
406	if (RT_SUCCESS(rc))
407	rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64Idle);
408
409	uint64_t u64DeltaIdle = u64Idle - gCtx.au64LastCpuLoad_Idle[u32CpuId];
410	uint64_t u64DeltaSystem = u64System - gCtx.au64LastCpuLoad_Kernel[u32CpuId];
411	uint64_t u64DeltaUser = u64User - gCtx.au64LastCpuLoad_User[u32CpuId];
412	uint64_t u64DeltaNice = u64Nice - gCtx.au64LastCpuLoad_Nice[u32CpuId];
413
414	uint64_t u64DeltaAll = u64DeltaIdle
415	+ u64DeltaSystem
416	+ u64DeltaUser
417	+ u64DeltaNice;
418	if (u64DeltaAll == 0) /* Prevent division through zero. */
419	u64DeltaAll = 1;
420
421	gCtx.au64LastCpuLoad_Idle[u32CpuId] = u64Idle;
422	gCtx.au64LastCpuLoad_Kernel[u32CpuId] = u64System;
423	gCtx.au64LastCpuLoad_User[u32CpuId] = u64User;
424	gCtx.au64LastCpuLoad_Nice[u32CpuId] = u64Nice;
425
426	req.guestStats.u32CpuId = u32CpuId;
427	req.guestStats.u32CpuLoad_Idle = (uint32_t)(u64DeltaIdle * 100 / u64DeltaAll);
428	req.guestStats.u32CpuLoad_Kernel = (uint32_t)(u64DeltaSystem * 100 / u64DeltaAll);
429	req.guestStats.u32CpuLoad_User = (uint32_t)((u64DeltaUser
430	+ u64DeltaNice) * 100 / u64DeltaAll);
431	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_CPU_LOAD_IDLE
432	\| VBOX_GUEST_STAT_CPU_LOAD_KERNEL
433	\| VBOX_GUEST_STAT_CPU_LOAD_USER;
434	fCpuInfoAvail = true;
435	rc = VbglR3StatReport(&req);
436	if (RT_SUCCESS(rc))
437	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: new statistics (CPU %u) reported successfully!\n", u32CpuId);
438	else
439	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: stats report failed with rc=%Rrc\n", rc);
440	}
441	else
442	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: skipping information for CPU%u\n", u32CpuId);
443	}
444	}
445	RTStrmClose(pStrm);
446	}
447	if (!fCpuInfoAvail)
448	{
449	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: CPU info not available!\n");
450	rc = VbglR3StatReport(&req);
451	if (RT_SUCCESS(rc))
452	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: new statistics reported successfully!\n");
453	else
454	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: stats report failed with rc=%Rrc\n", rc);
455	}
456
457	#elif defined(RT_OS_SOLARIS)
458	VMMDevReportGuestStats req;
459	RT_ZERO(req);
460	kstat_ctl_t *pStatKern = kstat_open();
461	if (pStatKern)
462	{
463	/*
464	* Memory statistics.
465	*/
466	uint64_t u64Total = 0, u64Free = 0, u64Buffers = 0, u64Cached = 0, u64PagedTotal = 0;
467	int rc = -1;
468	kstat_t pStatPages = kstat_lookup(pStatKern, "unix", 0 / instance */, "system_pages");
469	if (pStatPages)
470	{
471	rc = kstat_read(pStatKern, pStatPages, NULL /* optional-copy-buf */);
472	if (rc != -1)
473	{
474	kstat_named_t *pStat = NULL;
475	pStat = (kstat_named_t *)kstat_data_lookup(pStatPages, "pagestotal");
476	if (pStat)
477	u64Total = pStat->value.ul;
478
479	pStat = (kstat_named_t *)kstat_data_lookup(pStatPages, "freemem");
480	if (pStat)
481	u64Free = pStat->value.ul;
482	}
483	}
484
485	kstat_t pStatZFS = kstat_lookup(pStatKern, "zfs", 0 / instance */, "arcstats");
486	if (pStatZFS)
487	{
488	rc = kstat_read(pStatKern, pStatZFS, NULL /* optional-copy-buf */);
489	if (rc != -1)
490	{
491	kstat_named_t pStat = (kstat_named_t )kstat_data_lookup(pStatZFS, "size");
492	if (pStat)
493	u64Cached = pStat->value.ul;
494	}
495	}
496
497	/*
498	* The vminfo are accumulative counters updated every "N" ticks. Let's get the
499	* number of stat updates so far and use that to divide the swap counter.
500	*/
501	kstat_t pStatInfo = kstat_lookup(pStatKern, "unix", 0 / instance */, "sysinfo");
502	if (pStatInfo)
503	{
504	sysinfo_t SysInfo;
505	rc = kstat_read(pStatKern, pStatInfo, &SysInfo);
506	if (rc != -1)
507	{
508	kstat_t pStatVMInfo = kstat_lookup(pStatKern, "unix", 0 / instance */, "vminfo");
509	if (pStatVMInfo)
510	{
511	vminfo_t VMInfo;
512	rc = kstat_read(pStatKern, pStatVMInfo, &VMInfo);
513	if (rc != -1)
514	{
515	Assert(SysInfo.updates != 0);
516	u64PagedTotal = VMInfo.swap_avail / SysInfo.updates;
517	}
518	}
519	}
520	}
521
522	req.guestStats.u32PhysMemTotal = u64Total; /* already in pages */
523	req.guestStats.u32PhysMemAvail = u64Free; /* already in pages */
524	req.guestStats.u32MemSystemCache = u64Cached / _4K;
525	req.guestStats.u32PageFileSize = u64PagedTotal; /* already in pages */
526	/** @todo req.guestStats.u32Threads */
527	/** @todo req.guestStats.u32Processes */
528	/** @todo req.guestStats.u32Handles -- ??? */
529	/** @todo req.guestStats.u32MemoryLoad */
530	/** @todo req.guestStats.u32MemCommitTotal */
531	/** @todo req.guestStats.u32MemKernelTotal */
532	/** @todo req.guestStats.u32MemKernelPaged */
533	/** @todo req.guestStats.u32MemKernelNonPaged */
534	req.guestStats.u32PageSize = getpagesize();
535
536	req.guestStats.u32StatCaps = VBOX_GUEST_STAT_PHYS_MEM_TOTAL
537	\| VBOX_GUEST_STAT_PHYS_MEM_AVAIL
538	\| VBOX_GUEST_STAT_MEM_SYSTEM_CACHE
539	\| VBOX_GUEST_STAT_PAGE_FILE_SIZE;
540	#ifdef VBOX_WITH_MEMBALLOON
541	req.guestStats.u32PhysMemBalloon = VBoxServiceBalloonQueryPages(_4K);
542	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_PHYS_MEM_BALLOON;
543	#else
544	req.guestStats.u32PhysMemBalloon = 0;
545	#endif
546
547	/*
548	* CPU statistics.
549	*/
550	cpu_stat_t StatCPU;
551	RT_ZERO(StatCPU);
552	kstat_t *pStatNode = NULL;
553	uint32_t cCPUs = 0;
554	bool fCpuInfoAvail = false;
555	for (pStatNode = pStatKern->kc_chain; pStatNode != NULL; pStatNode = pStatNode->ks_next)
556	{
557	if (!strcmp(pStatNode->ks_module, "cpu_stat"))
558	{
559	rc = kstat_read(pStatKern, pStatNode, &StatCPU);
560	if (rc == -1)
561	break;
562
563	uint64_t u64Idle = StatCPU.cpu_sysinfo.cpu[CPU_IDLE];
564	uint64_t u64User = StatCPU.cpu_sysinfo.cpu[CPU_USER];
565	uint64_t u64System = StatCPU.cpu_sysinfo.cpu[CPU_KERNEL];
566
567	uint64_t u64DeltaIdle = u64Idle - gCtx.au64LastCpuLoad_Idle[cCPUs];
568	uint64_t u64DeltaSystem = u64System - gCtx.au64LastCpuLoad_Kernel[cCPUs];
569	uint64_t u64DeltaUser = u64User - gCtx.au64LastCpuLoad_User[cCPUs];
570
571	uint64_t u64DeltaAll = u64DeltaIdle + u64DeltaSystem + u64DeltaUser;
572	if (u64DeltaAll == 0) /* Prevent division through zero. */
573	u64DeltaAll = 1;
574
575	gCtx.au64LastCpuLoad_Idle[cCPUs] = u64Idle;
576	gCtx.au64LastCpuLoad_Kernel[cCPUs] = u64System;
577	gCtx.au64LastCpuLoad_User[cCPUs] = u64User;
578
579	req.guestStats.u32CpuId = cCPUs;
580	req.guestStats.u32CpuLoad_Idle = (uint32_t)(u64DeltaIdle * 100 / u64DeltaAll);
581	req.guestStats.u32CpuLoad_Kernel = (uint32_t)(u64DeltaSystem * 100 / u64DeltaAll);
582	req.guestStats.u32CpuLoad_User = (uint32_t)(u64DeltaUser * 100 / u64DeltaAll);
583
584	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_CPU_LOAD_IDLE
585	\| VBOX_GUEST_STAT_CPU_LOAD_KERNEL
586	\| VBOX_GUEST_STAT_CPU_LOAD_USER;
587	fCpuInfoAvail = true;
588
589	rc = VbglR3StatReport(&req);
590	if (RT_SUCCESS(rc))
591	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: new statistics (CPU %u) reported successfully!\n", cCPUs);
592	else
593	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: stats report failed with rc=%Rrc\n", rc);
594	cCPUs++;
595	}
596	}
597
598	/*
599	* Report whatever statistics were collected.
600	*/
601	if (!fCpuInfoAvail)
602	{
603	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: CPU info not available!\n");
604	rc = VbglR3StatReport(&req);
605	if (RT_SUCCESS(rc))
606	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: new statistics reported successfully!\n");
607	else
608	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: stats report failed with rc=%Rrc\n", rc);
609	}
610
611	kstat_close(pStatKern);
612	}
613
614	#else
615	/* todo: implement for other platforms. */
616
617	#endif
618	}
619
620	/** @copydoc VBOXSERVICE::pfnWorker */
621	DECLCALLBACK(int) VBoxServiceVMStatsWorker(bool volatile *pfShutdown)
622	{
623	int rc = VINF_SUCCESS;
624
625	/* Start monitoring of the stat event change event. */
626	rc = VbglR3CtlFilterMask(VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST, 0);
627	if (RT_FAILURE(rc))
628	{
629	VBoxServiceVerbose(3, "VBoxServiceVMStatsWorker: VbglR3CtlFilterMask failed with %d\n", rc);
630	return rc;
631	}
632
633	/*
634	* Tell the control thread that it can continue
635	* spawning services.
636	*/
637	RTThreadUserSignal(RTThreadSelf());
638
639	/*
640	* Now enter the loop retrieving runtime data continuously.
641	*/
642	for (;;)
643	{
644	uint32_t fEvents = 0;
645	RTMSINTERVAL cWaitMillies;
646
647	/* Check if an update interval change is pending. */
648	rc = VbglR3WaitEvent(VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST, 0 /* no wait */, &fEvents);
649	if ( RT_SUCCESS(rc)
650	&& (fEvents & VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST))
651	{
652	VbglR3StatQueryInterval(&gCtx.cMsStatInterval);
653	}
654
655	if (gCtx.cMsStatInterval)
656	{
657	VBoxServiceVMStatsReport();
658	cWaitMillies = gCtx.cMsStatInterval;
659	}
660	else
661	cWaitMillies = 3000;
662
663	/*
664	* Block for a while.
665	*
666	* The event semaphore takes care of ignoring interruptions and it
667	* allows us to implement service wakeup later.
668	*/
669	if (*pfShutdown)
670	break;
671	int rc2 = RTSemEventMultiWait(g_VMStatEvent, cWaitMillies);
672	if (*pfShutdown)
673	break;
674	if (rc2 != VERR_TIMEOUT && RT_FAILURE(rc2))
675	{
676	VBoxServiceError("VBoxServiceVMStatsWorker: RTSemEventMultiWait failed; rc2=%Rrc\n", rc2);
677	rc = rc2;
678	break;
679	}
680	}
681
682	/* Cancel monitoring of the stat event change event. */
683	rc = VbglR3CtlFilterMask(0, VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST);
684	if (RT_FAILURE(rc))
685	VBoxServiceVerbose(3, "VBoxServiceVMStatsWorker: VbglR3CtlFilterMask failed with %d\n", rc);
686
687	RTSemEventMultiDestroy(g_VMStatEvent);
688	g_VMStatEvent = NIL_RTSEMEVENTMULTI;
689
690	VBoxServiceVerbose(3, "VBoxStatsThread: finished statistics change request thread\n");
691	return 0;
692	}
693
694
695	/** @copydoc VBOXSERVICE::pfnTerm */
696	static DECLCALLBACK(void) VBoxServiceVMStatsTerm(void)
697	{
698	VBoxServiceVerbose(3, "VBoxServiceVMStatsTerm\n");
699	return;
700	}
701
702
703	/** @copydoc VBOXSERVICE::pfnStop */
704	static DECLCALLBACK(void) VBoxServiceVMStatsStop(void)
705	{
706	RTSemEventMultiSignal(g_VMStatEvent);
707	}
708
709
710	/**
711	* The 'vminfo' service description.
712	*/
713	VBOXSERVICE g_VMStatistics =
714	{
715	/* pszName. */
716	"vmstats",
717	/* pszDescription. */
718	"Virtual Machine Statistics",
719	/* pszUsage. */
720	NULL,
721	/* pszOptions. */
722	NULL,
723	/* methods */
724	VBoxServiceVMStatsPreInit,
725	VBoxServiceVMStatsOption,
726	VBoxServiceVMStatsInit,
727	VBoxServiceVMStatsWorker,
728	VBoxServiceVMStatsStop,
729	VBoxServiceVMStatsTerm
730	};

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source: vbox/trunk/src/VBox/Additions/common/VBoxService/VBoxServiceStats.cpp@ 44824

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