VBoxServiceStats.cpp@ 30671

Last change on this file since 30671 was 29345, checked in by vboxsync, 15 years ago
VBoxService,VBox/err.h: Use a dedicated status code for this, VERR_NOT_IMPLEMENTED and VERR_NOT_SUPPORTED are not suitable. Disable ballooning if either VbglR3MemBalloonRefresh or VBoxServiceBalloonSetUser fails instead of just checking the first. Don't display an error message on non-Windows hosts when ballooning is unavailbe (status code mixup).
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 27.7 KB

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1	/* $Id: VBoxServiceStats.cpp 29345 2010-05-11 12:22:48Z vboxsync $ */
2	/** @file
3	* VBoxStats - Guest statistics notification
4	*/
5
6	/*
7	* Copyright (C) 2006-2010 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	return VINF_SUCCESS;
101	}
102
103
104	/** @copydoc VBOXSERVICE::pfnInit */
105	static DECLCALLBACK(int) VBoxServiceVMStatsInit(void)
106	{
107	VBoxServiceVerbose(3, "VBoxServiceVMStatsInit\n");
108
109	int rc = RTSemEventMultiCreate(&g_VMStatEvent);
110	AssertRCReturn(rc, rc);
111
112	gCtx.cMsStatInterval = 0; /* default; update disabled */
113	RT_ZERO(gCtx.au64LastCpuLoad_Idle);
114	RT_ZERO(gCtx.au64LastCpuLoad_Kernel);
115	RT_ZERO(gCtx.au64LastCpuLoad_User);
116	RT_ZERO(gCtx.au64LastCpuLoad_Nice);
117
118	rc = VbglR3StatQueryInterval(&gCtx.cMsStatInterval);
119	if (RT_SUCCESS(rc))
120	VBoxServiceVerbose(3, "VBoxStatsInit: New statistics interval %u seconds\n", gCtx.cMsStatInterval);
121	else
122	VBoxServiceVerbose(3, "VBoxStatsInit: DeviceIoControl failed with %d\n", rc);
123
124	#ifdef RT_OS_WINDOWS
125	/** @todo Use RTLdr instead of LoadLibrary/GetProcAddress here! */
126
127	/* NtQuerySystemInformation might be dropped in future releases, so load it dynamically as per Microsoft's recommendation */
128	HMODULE hMod = LoadLibrary("NTDLL.DLL");
129	if (hMod)
130	{
131	(uintptr_t )&gCtx.pfnNtQuerySystemInformation = (uintptr_t)GetProcAddress(hMod, "NtQuerySystemInformation");
132	if (gCtx.pfnNtQuerySystemInformation)
133	VBoxServiceVerbose(3, "VBoxStatsInit: gCtx.pfnNtQuerySystemInformation = %x\n", gCtx.pfnNtQuerySystemInformation);
134	else
135	{
136	VBoxServiceVerbose(3, "VBoxStatsInit: NTDLL.NtQuerySystemInformation not found!\n");
137	return VERR_SERVICE_DISABLED;
138	}
139	}
140
141	/* GlobalMemoryStatus is win2k and up, so load it dynamically */
142	hMod = LoadLibrary("KERNEL32.DLL");
143	if (hMod)
144	{
145	(uintptr_t )&gCtx.pfnGlobalMemoryStatusEx = (uintptr_t)GetProcAddress(hMod, "GlobalMemoryStatusEx");
146	if (gCtx.pfnGlobalMemoryStatusEx)
147	VBoxServiceVerbose(3, "VBoxStatsInit: gCtx.GlobalMemoryStatusEx = %x\n", gCtx.pfnGlobalMemoryStatusEx);
148	else
149	{
150	/** @todo Now fails in NT4; do we care? */
151	VBoxServiceVerbose(3, "VBoxStatsInit: KERNEL32.GlobalMemoryStatusEx not found!\n");
152	return VERR_SERVICE_DISABLED;
153	}
154	}
155	/* GetPerformanceInfo is xp and up, so load it dynamically */
156	hMod = LoadLibrary("PSAPI.DLL");
157	if (hMod)
158	{
159	(uintptr_t )&gCtx.pfnGetPerformanceInfo = (uintptr_t)GetProcAddress(hMod, "GetPerformanceInfo");
160	if (gCtx.pfnGetPerformanceInfo)
161	VBoxServiceVerbose(3, "VBoxStatsInit: gCtx.pfnGetPerformanceInfo= %x\n", gCtx.pfnGetPerformanceInfo);
162	/* failure is not fatal */
163	}
164	#endif /* RT_OS_WINDOWS */
165
166	return VINF_SUCCESS;
167	}
168
169
170	/**
171	* Gathers VM statistics and reports them to the host.
172	*
173	* @returns
174	* @param oid .
175	*/
176	static void VBoxServiceVMStatsReport(void)
177	{
178	#if defined(RT_OS_WINDOWS)
179	SYSTEM_INFO systemInfo;
180	PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION pProcInfo;
181	MEMORYSTATUSEX memStatus;
182	uint32_t cbStruct;
183	DWORD cbReturned;
184
185	Assert(gCtx.pfnGlobalMemoryStatusEx && gCtx.pfnNtQuerySystemInformation);
186	if ( !gCtx.pfnGlobalMemoryStatusEx
187	\|\| !gCtx.pfnNtQuerySystemInformation)
188	return;
189
190	/* Clear the report so we don't report garbage should NtQuerySystemInformation
191	behave in an unexpected manner. */
192	VMMDevReportGuestStats req;
193	RT_ZERO(req);
194
195	/* Query and report guest statistics */
196	GetSystemInfo(&systemInfo);
197
198	memStatus.dwLength = sizeof(memStatus);
199	gCtx.pfnGlobalMemoryStatusEx(&memStatus);
200
201	req.guestStats.u32PageSize = systemInfo.dwPageSize;
202	req.guestStats.u32PhysMemTotal = (uint32_t)(memStatus.ullTotalPhys / _4K);
203	req.guestStats.u32PhysMemAvail = (uint32_t)(memStatus.ullAvailPhys / _4K);
204	/* The current size of the committed memory limit, in bytes. This is physical
205	memory plus the size of the page file, minus a small overhead. */
206	req.guestStats.u32PageFileSize = (uint32_t)(memStatus.ullTotalPageFile / _4K) - req.guestStats.u32PhysMemTotal;
207	req.guestStats.u32MemoryLoad = memStatus.dwMemoryLoad;
208	req.guestStats.u32StatCaps = VBOX_GUEST_STAT_PHYS_MEM_TOTAL
209	\| VBOX_GUEST_STAT_PHYS_MEM_AVAIL
210	\| VBOX_GUEST_STAT_PAGE_FILE_SIZE
211	\| VBOX_GUEST_STAT_MEMORY_LOAD;
212	#ifdef VBOX_WITH_MEMBALLOON
213	req.guestStats.u32PhysMemBalloon = VBoxServiceBalloonQueryPages(_4K);
214	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_PHYS_MEM_BALLOON;
215	#else
216	req.guestStats.u32PhysMemBalloon = 0;
217	#endif
218
219	if (gCtx.pfnGetPerformanceInfo)
220	{
221	PERFORMANCE_INFORMATION perfInfo;
222
223	if (gCtx.pfnGetPerformanceInfo(&perfInfo, sizeof(perfInfo)))
224	{
225	req.guestStats.u32Processes = perfInfo.ProcessCount;
226	req.guestStats.u32Threads = perfInfo.ThreadCount;
227	req.guestStats.u32Handles = perfInfo.HandleCount;
228	req.guestStats.u32MemCommitTotal = perfInfo.CommitTotal; /* already in pages */
229	req.guestStats.u32MemKernelTotal = perfInfo.KernelTotal; /* already in pages */
230	req.guestStats.u32MemKernelPaged = perfInfo.KernelPaged; /* already in pages */
231	req.guestStats.u32MemKernelNonPaged = perfInfo.KernelNonpaged; /* already in pages */
232	req.guestStats.u32MemSystemCache = perfInfo.SystemCache; /* already in pages */
233	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_PROCESSES \| VBOX_GUEST_STAT_THREADS \| VBOX_GUEST_STAT_HANDLES
234	\| VBOX_GUEST_STAT_MEM_COMMIT_TOTAL \| VBOX_GUEST_STAT_MEM_KERNEL_TOTAL
235	\| VBOX_GUEST_STAT_MEM_KERNEL_PAGED \| VBOX_GUEST_STAT_MEM_KERNEL_NONPAGED
236	\| VBOX_GUEST_STAT_MEM_SYSTEM_CACHE;
237	}
238	else
239	VBoxServiceVerbose(3, "GetPerformanceInfo failed with %d\n", GetLastError());
240	}
241
242	/* Query CPU load information */
243	cbStruct = systemInfo.dwNumberOfProcessors * sizeof(SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION);
244	pProcInfo = (PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION)RTMemAlloc(cbStruct);
245	if (!pProcInfo)
246	return;
247
248	/* Unfortunately GetSystemTimes is XP SP1 and up only, so we need to use the semi-undocumented NtQuerySystemInformation */
249	NTSTATUS rc = gCtx.pfnNtQuerySystemInformation(SystemProcessorPerformanceInformation, pProcInfo, cbStruct, &cbReturned);
250	if ( !rc
251	&& cbReturned == cbStruct)
252	{
253	if (gCtx.au64LastCpuLoad_Kernel == 0)
254	{
255	/* first time */
256	gCtx.au64LastCpuLoad_Idle[0] = pProcInfo->IdleTime.QuadPart;
257	gCtx.au64LastCpuLoad_Kernel[0] = pProcInfo->KernelTime.QuadPart;
258	gCtx.au64LastCpuLoad_User[0] = pProcInfo->UserTime.QuadPart;
259
260	Sleep(250);
261
262	rc = gCtx.pfnNtQuerySystemInformation(SystemProcessorPerformanceInformation, pProcInfo, cbStruct, &cbReturned);
263	Assert(!rc);
264	}
265
266	uint64_t deltaIdle = (pProcInfo->IdleTime.QuadPart - gCtx.au64LastCpuLoad_Idle[0]);
267	uint64_t deltaKernel = (pProcInfo->KernelTime.QuadPart - gCtx.au64LastCpuLoad_Kernel[0]);
268	uint64_t deltaUser = (pProcInfo->UserTime.QuadPart - gCtx.au64LastCpuLoad_User[0]);
269	deltaKernel -= deltaIdle; /* idle time is added to kernel time */
270	uint64_t ullTotalTime = deltaIdle + deltaKernel + deltaUser;
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_PAGE_FILE_SIZE;
358	#ifdef VBOX_WITH_MEMBALLOON
359	req.guestStats.u32PhysMemBalloon = VBoxServiceBalloonQueryPages(_4K);
360	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_PHYS_MEM_BALLOON;
361	#else
362	req.guestStats.u32PhysMemBalloon = 0;
363	#endif
364
365
366	/** @todo req.guestStats.u32Threads */
367	/** @todo req.guestStats.u32Processes */
368	/* req.guestStats.u32Handles doesn't make sense here. */
369	/** @todo req.guestStats.u32MemoryLoad */
370	/** @todo req.guestStats.u32MemCommitTotal */
371	/** @todo req.guestStats.u32MemKernelTotal */
372	/** @todo req.guestStats.u32MemKernelPaged, make any sense? = u32MemKernelTotal? */
373	/** @todo req.guestStats.u32MemKernelNonPaged, make any sense? = 0? */
374
375	bool fCpuInfoAvail = false;
376	rc = RTStrmOpen("/proc/stat", "r", &pStrm);
377	if (RT_SUCCESS(rc))
378	{
379	for (;;)
380	{
381	rc = RTStrmGetLine(pStrm, szLine, sizeof(szLine));
382	if (RT_FAILURE(rc))
383	break;
384	if ( strstr(szLine, "cpu") == szLine
385	&& strlen(szLine) > 3
386	&& RT_C_IS_DIGIT(szLine[3]))
387	{
388	uint32_t u32CpuId;
389	rc = RTStrToUInt32Ex(&szLine[3], &psz, 0, &u32CpuId);
390	if (u32CpuId < VMM_MAX_CPU_COUNT)
391	{
392	uint64_t u64User = 0;
393	if (RT_SUCCESS(rc))
394	rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64User);
395
396	uint64_t u64Nice = 0;
397	if (RT_SUCCESS(rc))
398	rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64Nice);
399
400	uint64_t u64System = 0;
401	if (RT_SUCCESS(rc))
402	rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64System);
403
404	uint64_t u64Idle = 0;
405	if (RT_SUCCESS(rc))
406	rc = RTStrToUInt64Ex(RTStrStripL(psz), &psz, 0, &u64Idle);
407
408	uint64_t u64DeltaIdle = u64Idle - gCtx.au64LastCpuLoad_Idle[u32CpuId];
409	uint64_t u64DeltaSystem = u64System - gCtx.au64LastCpuLoad_Kernel[u32CpuId];
410	uint64_t u64DeltaUser = u64User - gCtx.au64LastCpuLoad_User[u32CpuId];
411	uint64_t u64DeltaNice = u64Nice - gCtx.au64LastCpuLoad_Nice[u32CpuId];
412
413	uint64_t u64DeltaAll = u64DeltaIdle
414	+ u64DeltaSystem
415	+ u64DeltaUser
416	+ u64DeltaNice;
417
418	gCtx.au64LastCpuLoad_Idle[u32CpuId] = u64Idle;
419	gCtx.au64LastCpuLoad_Kernel[u32CpuId] = u64System;
420	gCtx.au64LastCpuLoad_User[u32CpuId] = u64User;
421	gCtx.au64LastCpuLoad_Nice[u32CpuId] = u64Nice;
422
423	req.guestStats.u32CpuId = u32CpuId;
424	req.guestStats.u32CpuLoad_Idle = (uint32_t)(u64DeltaIdle * 100 / u64DeltaAll);
425	req.guestStats.u32CpuLoad_Kernel = (uint32_t)(u64DeltaSystem * 100 / u64DeltaAll);
426	req.guestStats.u32CpuLoad_User = (uint32_t)((u64DeltaUser
427	+ u64DeltaNice) * 100 / u64DeltaAll);
428	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_CPU_LOAD_IDLE
429	\| VBOX_GUEST_STAT_CPU_LOAD_KERNEL
430	\| VBOX_GUEST_STAT_CPU_LOAD_USER;
431	fCpuInfoAvail = true;
432	rc = VbglR3StatReport(&req);
433	if (RT_SUCCESS(rc))
434	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: new statistics (CPU %u) reported successfully!\n", u32CpuId);
435	else
436	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: stats report failed with rc=%Rrc\n", rc);
437	}
438	else
439	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: skipping information for CPU%u\n", u32CpuId);
440	}
441	}
442	RTStrmClose(pStrm);
443	}
444	if (!fCpuInfoAvail)
445	{
446	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: CPU info not available!\n");
447	rc = VbglR3StatReport(&req);
448	if (RT_SUCCESS(rc))
449	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: new statistics reported successfully!\n");
450	else
451	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: stats report failed with rc=%Rrc\n", rc);
452	}
453
454	#elif defined(RT_OS_SOLARIS)
455	VMMDevReportGuestStats req;
456	RT_ZERO(req);
457	kstat_ctl_t *pStatKern = kstat_open();
458	if (pStatKern)
459	{
460	/*
461	* Memory statistics.
462	*/
463	uint64_t u64Total = 0, u64Free = 0, u64Buffers = 0, u64Cached = 0, u64PagedTotal = 0;
464	int rc = -1;
465	kstat_t pStatPages = kstat_lookup(pStatKern, "unix", 0 / instance */, "system_pages");
466	if (pStatPages)
467	{
468	rc = kstat_read(pStatKern, pStatPages, NULL /* optional-copy-buf */);
469	if (rc != -1)
470	{
471	kstat_named_t *pStat = NULL;
472	pStat = (kstat_named_t *)kstat_data_lookup(pStatPages, "pagestotal");
473	if (pStat)
474	u64Total = pStat->value.ul;
475
476	pStat = (kstat_named_t *)kstat_data_lookup(pStatPages, "freemem");
477	if (pStat)
478	u64Free = pStat->value.ul;
479	}
480	}
481
482	kstat_t pStatZFS = kstat_lookup(pStatKern, "zfs", 0 / instance */, "arcstats");
483	if (pStatZFS)
484	{
485	rc = kstat_read(pStatKern, pStatZFS, NULL /* optional-copy-buf */);
486	if (rc != -1)
487	{
488	kstat_named_t pStat = (kstat_named_t )kstat_data_lookup(pStatZFS, "size");
489	if (pStat)
490	u64Cached = pStat->value.ul;
491	}
492	}
493
494	/*
495	* The vminfo are accumulative counters updated every "N" ticks. Let's get the
496	* number of stat updates so far and use that to divide the swap counter.
497	*/
498	kstat_t pStatInfo = kstat_lookup(pStatKern, "unix", 0 / instance */, "sysinfo");
499	if (pStatInfo)
500	{
501	sysinfo_t SysInfo;
502	rc = kstat_read(pStatKern, pStatInfo, &SysInfo);
503	if (rc != -1)
504	{
505	kstat_t pStatVMInfo = kstat_lookup(pStatKern, "unix", 0 / instance */, "vminfo");
506	if (pStatVMInfo)
507	{
508	vminfo_t VMInfo;
509	rc = kstat_read(pStatKern, pStatVMInfo, &VMInfo);
510	if (rc != -1)
511	{
512	u64PagedTotal = VMInfo.swap_avail / SysInfo.updates;
513	}
514	}
515	}
516	}
517
518	req.guestStats.u32PhysMemTotal = u64Total; /* already in pages */
519	req.guestStats.u32PhysMemAvail = u64Free; /* already in pages */
520	req.guestStats.u32MemSystemCache = u64Cached / _4K;
521	req.guestStats.u32PageFileSize = u64PagedTotal; /* already in pages */
522	/** @todo req.guestStats.u32Threads */
523	/** @todo req.guestStats.u32Processes */
524	/** @todo req.guestStats.u32Handles -- ??? */
525	/** @todo req.guestStats.u32MemoryLoad */
526	/** @todo req.guestStats.u32MemCommitTotal */
527	/** @todo req.guestStats.u32MemKernelTotal */
528	/** @todo req.guestStats.u32MemKernelPaged */
529	/** @todo req.guestStats.u32MemKernelNonPaged */
530	req.guestStats.u32PageSize = getpagesize();
531
532	req.guestStats.u32StatCaps = VBOX_GUEST_STAT_PHYS_MEM_TOTAL
533	\| VBOX_GUEST_STAT_PHYS_MEM_AVAIL
534	\| VBOX_GUEST_STAT_PAGE_FILE_SIZE;
535	#ifdef VBOX_WITH_MEMBALLOON
536	req.guestStats.u32PhysMemBalloon = VBoxServiceBalloonQueryPages(_4K);
537	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_PHYS_MEM_BALLOON;
538	#else
539	req.guestStats.u32PhysMemBalloon = 0;
540	#endif
541
542	/*
543	* CPU statistics.
544	*/
545	cpu_stat_t StatCPU;
546	RT_ZERO(StatCPU);
547	kstat_t *pStatNode = NULL;
548	uint32_t cCPUs = 0;
549	bool fCpuInfoAvail = false;
550	for (pStatNode = pStatKern->kc_chain; pStatNode != NULL; pStatNode = pStatNode->ks_next)
551	{
552	if (!strcmp(pStatNode->ks_module, "cpu_stat"))
553	{
554	rc = kstat_read(pStatKern, pStatNode, &StatCPU);
555	if (rc == -1)
556	break;
557
558	uint64_t u64Idle = StatCPU.cpu_sysinfo.cpu[CPU_IDLE];
559	uint64_t u64User = StatCPU.cpu_sysinfo.cpu[CPU_USER];
560	uint64_t u64System = StatCPU.cpu_sysinfo.cpu[CPU_KERNEL];
561
562	uint64_t u64DeltaIdle = u64Idle - gCtx.au64LastCpuLoad_Idle[cCPUs];
563	uint64_t u64DeltaSystem = u64System - gCtx.au64LastCpuLoad_Kernel[cCPUs];
564	uint64_t u64DeltaUser = u64User - gCtx.au64LastCpuLoad_User[cCPUs];
565
566	uint64_t u64DeltaAll = u64DeltaIdle + u64DeltaSystem + u64DeltaUser;
567
568	gCtx.au64LastCpuLoad_Idle[cCPUs] = u64Idle;
569	gCtx.au64LastCpuLoad_Kernel[cCPUs] = u64System;
570	gCtx.au64LastCpuLoad_User[cCPUs] = u64User;
571
572	req.guestStats.u32CpuId = cCPUs;
573	req.guestStats.u32CpuLoad_Idle = (uint32_t)(u64DeltaIdle * 100 / u64DeltaAll);
574	req.guestStats.u32CpuLoad_Kernel = (uint32_t)(u64DeltaSystem * 100 / u64DeltaAll);
575	req.guestStats.u32CpuLoad_User = (uint32_t)(u64DeltaUser * 100 / u64DeltaAll);
576
577	req.guestStats.u32StatCaps \|= VBOX_GUEST_STAT_CPU_LOAD_IDLE
578	\| VBOX_GUEST_STAT_CPU_LOAD_KERNEL
579	\| VBOX_GUEST_STAT_CPU_LOAD_USER;
580	fCpuInfoAvail = true;
581
582	rc = VbglR3StatReport(&req);
583	if (RT_SUCCESS(rc))
584	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: new statistics (CPU %u) reported successfully!\n", cCPUs);
585	else
586	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: stats report failed with rc=%Rrc\n", rc);
587	cCPUs++;
588	}
589	}
590
591	/*
592	* Report whatever statistics were collected.
593	*/
594	if (!fCpuInfoAvail)
595	{
596	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: CPU info not available!\n");
597	rc = VbglR3StatReport(&req);
598	if (RT_SUCCESS(rc))
599	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: new statistics reported successfully!\n");
600	else
601	VBoxServiceVerbose(3, "VBoxStatsReportStatistics: stats report failed with rc=%Rrc\n", rc);
602	}
603
604	kstat_close(pStatKern);
605	}
606
607	#else
608	/* todo: implement for other platforms. */
609
610	#endif
611	}
612
613	/** @copydoc VBOXSERVICE::pfnWorker */
614	DECLCALLBACK(int) VBoxServiceVMStatsWorker(bool volatile *pfShutdown)
615	{
616	int rc = VINF_SUCCESS;
617
618	/* Start monitoring of the stat event change event. */
619	rc = VbglR3CtlFilterMask(VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST, 0);
620	if (RT_FAILURE(rc))
621	{
622	VBoxServiceVerbose(3, "VBoxServiceVMStatsWorker: VbglR3CtlFilterMask failed with %d\n", rc);
623	return rc;
624	}
625
626	/*
627	* Tell the control thread that it can continue
628	* spawning services.
629	*/
630	RTThreadUserSignal(RTThreadSelf());
631
632	/*
633	* Now enter the loop retrieving runtime data continuously.
634	*/
635	for (;;)
636	{
637	uint32_t fEvents = 0;
638	RTMSINTERVAL cWaitMillies;
639
640	/* Check if an update interval change is pending. */
641	rc = VbglR3WaitEvent(VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST, 0 /* no wait */, &fEvents);
642	if ( RT_SUCCESS(rc)
643	&& (fEvents & VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST))
644	{
645	VbglR3StatQueryInterval(&gCtx.cMsStatInterval);
646	}
647
648	if (gCtx.cMsStatInterval)
649	{
650	VBoxServiceVMStatsReport();
651	cWaitMillies = gCtx.cMsStatInterval;
652	}
653	else
654	cWaitMillies = 3000;
655
656	/*
657	* Block for a while.
658	*
659	* The event semaphore takes care of ignoring interruptions and it
660	* allows us to implement service wakeup later.
661	*/
662	if (*pfShutdown)
663	break;
664	int rc2 = RTSemEventMultiWait(g_VMStatEvent, cWaitMillies);
665	if (*pfShutdown)
666	break;
667	if (rc2 != VERR_TIMEOUT && RT_FAILURE(rc2))
668	{
669	VBoxServiceError("RTSemEventMultiWait failed; rc2=%Rrc\n", rc2);
670	rc = rc2;
671	break;
672	}
673	}
674
675	/* Cancel monitoring of the stat event change event. */
676	rc = VbglR3CtlFilterMask(0, VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST);
677	if (RT_FAILURE(rc))
678	VBoxServiceVerbose(3, "VBoxServiceVMStatsWorker: VbglR3CtlFilterMask failed with %d\n", rc);
679
680	RTSemEventMultiDestroy(g_VMStatEvent);
681	g_VMStatEvent = NIL_RTSEMEVENTMULTI;
682
683	VBoxServiceVerbose(3, "VBoxStatsThread: finished statistics change request thread\n");
684	return 0;
685	}
686
687
688	/** @copydoc VBOXSERVICE::pfnTerm */
689	static DECLCALLBACK(void) VBoxServiceVMStatsTerm(void)
690	{
691	VBoxServiceVerbose(3, "VBoxServiceVMStatsTerm\n");
692	return;
693	}
694
695
696	/** @copydoc VBOXSERVICE::pfnStop */
697	static DECLCALLBACK(void) VBoxServiceVMStatsStop(void)
698	{
699	RTSemEventMultiSignal(g_VMStatEvent);
700	}
701
702
703	/**
704	* The 'vminfo' service description.
705	*/
706	VBOXSERVICE g_VMStatistics =
707	{
708	/* pszName. */
709	"vmstats",
710	/* pszDescription. */
711	"Virtual Machine Statistics",
712	/* pszUsage. */
713	NULL,
714	/* pszOptions. */
715	NULL,
716	/* methods */
717	VBoxServiceVMStatsPreInit,
718	VBoxServiceVMStatsOption,
719	VBoxServiceVMStatsInit,
720	VBoxServiceVMStatsWorker,
721	VBoxServiceVMStatsStop,
722	VBoxServiceVMStatsTerm
723	};

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source: vbox/trunk/src/VBox/Additions/common/VBoxService/VBoxServiceStats.cpp@ 30671

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