Performance.h@ 34575

Last change on this file since 34575 was 30847, checked in by vboxsync, 14 years ago
Main/Machine+Performance+VirtualBox: move deleting the performance metrics registration of a VM out of SessionMachine::uninit, where it was a risk of hangs due to callbacks. Doing it a little later won't hurt anyone. Additionally also make sure the total VMM memory stats are zeroed when the last VM has disabled its collector.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 19.7 KB

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1	/* $Id: Performance.h 30847 2010-07-14 15:40:49Z vboxsync $ */
2
3	/** @file
4	*
5	* VBox Performance Classes declaration.
6	*/
7
8	/*
9	* Copyright (C) 2008 Oracle Corporation
10	*
11	* This file is part of VirtualBox Open Source Edition (OSE), as
12	* available from http://www.virtualbox.org. This file is free software;
13	* you can redistribute it and/or modify it under the terms of the GNU
14	* General Public License (GPL) as published by the Free Software
15	* Foundation, in version 2 as it comes in the "COPYING" file of the
16	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
17	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
18	*/
19	#ifndef ___performance_h
20	#define ___performance_h
21
22	#include <VBox/com/defs.h>
23	#include <VBox/com/ptr.h>
24	#include <VBox/com/string.h>
25	#include <VBox/com/VirtualBox.h>
26
27	#include <iprt/types.h>
28	#include <iprt/err.h>
29
30	#include <algorithm>
31	#include <functional> /* For std::fun_ptr in testcase */
32	#include <list>
33	#include <vector>
34
35	/* Forward decl. */
36	class Machine;
37
38	namespace pm
39	{
40	/* CPU load is measured in 1/1000 of per cent. */
41	const uint64_t PM_CPU_LOAD_MULTIPLIER = UINT64_C(100000);
42
43	/* Sub Metrics **********************************************************/
44	class CircularBuffer
45	{
46	public:
47	CircularBuffer() : mData(0), mLength(0), mEnd(0), mWrapped(false) {};
48	void init(ULONG length);
49	ULONG length();
50	ULONG getSequenceNumber() { return mSequenceNumber; }
51	void put(ULONG value);
52	void copyTo(ULONG *data);
53	private:
54	ULONG *mData;
55	ULONG mLength;
56	ULONG mEnd;
57	ULONG mSequenceNumber;
58	bool mWrapped;
59	};
60
61	class SubMetric : public CircularBuffer
62	{
63	public:
64	SubMetric(const char name, const char description)
65	: mName(name), mDescription(description) {};
66	void query(ULONG *data);
67	const char *getName() { return mName; };
68	const char *getDescription() { return mDescription; };
69	private:
70	const char *mName;
71	const char *mDescription;
72	};
73
74
75	/* Collector Hardware Abstraction Layer *********************************/
76	enum {
77	COLLECT_NONE = 0x0,
78	COLLECT_CPU_LOAD = 0x1,
79	COLLECT_RAM_USAGE = 0x2
80	};
81	typedef int HintFlags;
82	typedef std::pair<RTPROCESS, HintFlags> ProcessFlagsPair;
83
84	class CollectorHints
85	{
86	public:
87	typedef std::list<ProcessFlagsPair> ProcessList;
88
89	CollectorHints() : mHostFlags(COLLECT_NONE) {}
90	void collectHostCpuLoad()
91	{ mHostFlags \|= COLLECT_CPU_LOAD; }
92	void collectHostRamUsage()
93	{ mHostFlags \|= COLLECT_RAM_USAGE; }
94	void collectProcessCpuLoad(RTPROCESS process)
95	{ findProcess(process).second \|= COLLECT_CPU_LOAD; }
96	void collectProcessRamUsage(RTPROCESS process)
97	{ findProcess(process).second \|= COLLECT_RAM_USAGE; }
98	bool isHostCpuLoadCollected() const
99	{ return (mHostFlags & COLLECT_CPU_LOAD) != 0; }
100	bool isHostRamUsageCollected() const
101	{ return (mHostFlags & COLLECT_RAM_USAGE) != 0; }
102	bool isProcessCpuLoadCollected(RTPROCESS process)
103	{ return (findProcess(process).second & COLLECT_CPU_LOAD) != 0; }
104	bool isProcessRamUsageCollected(RTPROCESS process)
105	{ return (findProcess(process).second & COLLECT_RAM_USAGE) != 0; }
106	void getProcesses(std::vector<RTPROCESS>& processes) const
107	{
108	processes.clear();
109	processes.reserve(mProcesses.size());
110	for (ProcessList::const_iterator it = mProcesses.begin(); it != mProcesses.end(); it++)
111	processes.push_back(it->first);
112	}
113	const ProcessList& getProcessFlags() const
114	{
115	return mProcesses;
116	}
117	private:
118	HintFlags mHostFlags;
119	ProcessList mProcesses;
120
121	ProcessFlagsPair& findProcess(RTPROCESS process)
122	{
123	ProcessList::iterator it;
124	for (it = mProcesses.begin(); it != mProcesses.end(); it++)
125	if (it->first == process)
126	return *it;
127
128	/* Not found -- add new */
129	mProcesses.push_back(ProcessFlagsPair(process, COLLECT_NONE));
130	return mProcesses.back();
131	}
132	};
133
134	class CollectorHAL
135	{
136	public:
137	CollectorHAL() : mMemAllocVMM(0), mMemFreeVMM(0), mMemBalloonedVMM(0), mMemSharedVMM(0) {};
138	virtual ~CollectorHAL() { };
139	virtual int preCollect(const CollectorHints& /* hints /, uint64_t / iTick */) { return VINF_SUCCESS; }
140	/** Returns averaged CPU usage in 1/1000th per cent across all host's CPUs. */
141	virtual int getHostCpuLoad(ULONG user, ULONG kernel, ULONG *idle);
142	/** Returns the average frequency in MHz across all host's CPUs. */
143	virtual int getHostCpuMHz(ULONG *mhz);
144	/** Returns the amount of physical memory in kilobytes. */
145	virtual int getHostMemoryUsage(ULONG total, ULONG used, ULONG *available);
146	/** Returns CPU usage in 1/1000th per cent by a particular process. */
147	virtual int getProcessCpuLoad(RTPROCESS process, ULONG user, ULONG kernel);
148	/** Returns the amount of memory used by a process in kilobytes. */
149	virtual int getProcessMemoryUsage(RTPROCESS process, ULONG *used);
150
151	/** Returns CPU usage counters in platform-specific units. */
152	virtual int getRawHostCpuLoad(uint64_t user, uint64_t kernel, uint64_t *idle);
153	/** Returns process' CPU usage counter in platform-specific units. */
154	virtual int getRawProcessCpuLoad(RTPROCESS process, uint64_t user, uint64_t kernel, uint64_t *total);
155
156	/** Enable metrics collecting (if applicable) */
157	virtual int enable();
158	/** Disable metrics collecting (if applicable) */
159	virtual int disable();
160
161	virtual int setMemHypervisorStats(ULONG memAlloc, ULONG memFree, ULONG memBallooned, ULONG memShared)
162	{
163	mMemAllocVMM = memAlloc;
164	mMemFreeVMM = memFree;
165	mMemBalloonedVMM = memBallooned;
166	mMemSharedVMM = memShared;
167	return S_OK;
168	}
169
170	virtual void getMemHypervisorStats(ULONG pMemAlloc, ULONG pMemFree, ULONG pMemBallooned, ULONG pMemShared)
171	{
172	*pMemAlloc = mMemAllocVMM;
173	*pMemFree = mMemFreeVMM;
174	*pMemBallooned = mMemBalloonedVMM;
175	*pMemShared = mMemSharedVMM;
176	}
177
178	private:
179	ULONG mMemAllocVMM;
180	ULONG mMemFreeVMM;
181	ULONG mMemBalloonedVMM;
182	ULONG mMemSharedVMM;
183	};
184
185	class CollectorGuestHAL : public CollectorHAL
186	{
187	public:
188	CollectorGuestHAL(Machine machine, CollectorHAL hostHAL);
189	~CollectorGuestHAL();
190
191	virtual int preCollect(const CollectorHints& hints, uint64_t iTick);
192
193	/** Enable metrics collecting (if applicable) */
194	virtual int enable();
195	/** Disable metrics collecting (if applicable) */
196	virtual int disable();
197
198	/** Return guest cpu absolute load values (0-100). */
199	void getGuestCpuLoad(ULONG pulCpuUser, ULONG pulCpuKernel, ULONG *pulCpuIdle)
200	{
201	*pulCpuUser = mCpuUser;
202	*pulCpuKernel = mCpuKernel;
203	*pulCpuIdle = mCpuIdle;
204	}
205
206	/** Return guest memory information in KB. */
207	void getGuestMemLoad(ULONG pulMemTotal, ULONG pulMemFree, ULONG pulMemBalloon, ULONG pulMemShared, ULONG pulMemCache, ULONG pulPageTotal)
208	{
209	*pulMemTotal = mMemTotal;
210	*pulMemFree = mMemFree;
211	*pulMemBalloon = mMemBalloon;
212	*pulMemShared = mMemShared;
213	*pulMemCache = mMemCache;
214	*pulPageTotal = mPageTotal;
215	}
216
217
218	protected:
219	uint32_t cEnabled;
220	Machine *mMachine;
221	ComPtr<IConsole> mConsole;
222	ComPtr<IGuest> mGuest;
223	uint64_t mLastTick;
224
225	CollectorHAL *mHostHAL;
226
227	ULONG mCpuUser;
228	ULONG mCpuKernel;
229	ULONG mCpuIdle;
230	ULONG mMemTotal;
231	ULONG mMemFree;
232	ULONG mMemBalloon;
233	ULONG mMemShared;
234	ULONG mMemCache;
235	ULONG mPageTotal;
236
237	private:
238	static uint32_t cVMsEnabled;
239	};
240
241	extern CollectorHAL *createHAL();
242
243	/* Base Metrics *********************************************************/
244	class BaseMetric
245	{
246	public:
247	BaseMetric(CollectorHAL hal, const char name, ComPtr<IUnknown> object)
248	: mPeriod(0), mLength(0), mHAL(hal), mName(name), mObject(object), mLastSampleTaken(0), mEnabled(false) {};
249	virtual ~BaseMetric() {};
250
251	virtual void init(ULONG period, ULONG length) = 0;
252	virtual void preCollect(CollectorHints& hints, uint64_t iTick) = 0;
253	virtual void collect() = 0;
254	virtual const char *getUnit() = 0;
255	virtual ULONG getMinValue() = 0;
256	virtual ULONG getMaxValue() = 0;
257	virtual ULONG getScale() = 0;
258
259	bool collectorBeat(uint64_t nowAt);
260
261	void enable()
262	{
263	mEnabled = true;
264	mHAL->enable();
265	};
266	void disable()
267	{
268	mHAL->disable();
269	mEnabled = false;
270	};
271
272	bool isEnabled() { return mEnabled; };
273	ULONG getPeriod() { return mPeriod; };
274	ULONG getLength() { return mLength; };
275	const char *getName() { return mName; };
276	ComPtr<IUnknown> getObject() { return mObject; };
277	bool associatedWith(ComPtr<IUnknown> object) { return mObject == object; };
278
279	protected:
280	ULONG mPeriod;
281	ULONG mLength;
282	CollectorHAL *mHAL;
283	const char *mName;
284	ComPtr<IUnknown> mObject;
285	uint64_t mLastSampleTaken;
286	bool mEnabled;
287	};
288
289	class HostCpuLoad : public BaseMetric
290	{
291	public:
292	HostCpuLoad(CollectorHAL hal, ComPtr<IUnknown> object, SubMetric user, SubMetric kernel, SubMetric idle)
293	: BaseMetric(hal, "CPU/Load", object), mUser(user), mKernel(kernel), mIdle(idle) {};
294	~HostCpuLoad() { delete mUser; delete mKernel; delete mIdle; };
295
296	void init(ULONG period, ULONG length);
297
298	void collect();
299	const char *getUnit() { return "%"; };
300	ULONG getMinValue() { return 0; };
301	ULONG getMaxValue() { return PM_CPU_LOAD_MULTIPLIER; };
302	ULONG getScale() { return PM_CPU_LOAD_MULTIPLIER / 100; }
303
304	protected:
305	SubMetric *mUser;
306	SubMetric *mKernel;
307	SubMetric *mIdle;
308	};
309
310	class HostCpuLoadRaw : public HostCpuLoad
311	{
312	public:
313	HostCpuLoadRaw(CollectorHAL hal, ComPtr<IUnknown> object, SubMetric user, SubMetric kernel, SubMetric idle)
314	: HostCpuLoad(hal, object, user, kernel, idle), mUserPrev(0), mKernelPrev(0), mIdlePrev(0) {};
315
316	void preCollect(CollectorHints& hints, uint64_t iTick);
317	void collect();
318	private:
319	uint64_t mUserPrev;
320	uint64_t mKernelPrev;
321	uint64_t mIdlePrev;
322	};
323
324	class HostCpuMhz : public BaseMetric
325	{
326	public:
327	HostCpuMhz(CollectorHAL hal, ComPtr<IUnknown> object, SubMetric mhz)
328	: BaseMetric(hal, "CPU/MHz", object), mMHz(mhz) {};
329	~HostCpuMhz() { delete mMHz; };
330
331	void init(ULONG period, ULONG length);
332	void preCollect(CollectorHints& /* hints /, uint64_t / iTick */) {}
333	void collect();
334	const char *getUnit() { return "MHz"; };
335	ULONG getMinValue() { return 0; };
336	ULONG getMaxValue() { return INT32_MAX; };
337	ULONG getScale() { return 1; }
338	private:
339	SubMetric *mMHz;
340	};
341
342	class HostRamUsage : public BaseMetric
343	{
344	public:
345	HostRamUsage(CollectorHAL hal, ComPtr<IUnknown> object, SubMetric total, SubMetric used, SubMetric available, SubMetric allocVMM, SubMetric freeVMM, SubMetric balloonVMM, SubMetric sharedVMM)
346	: BaseMetric(hal, "RAM/Usage", object), mTotal(total), mUsed(used), mAvailable(available), mAllocVMM(allocVMM), mFreeVMM(freeVMM), mBalloonVMM(balloonVMM), mSharedVMM(sharedVMM) {};
347	~HostRamUsage() { delete mTotal; delete mUsed; delete mAvailable; delete mAllocVMM; delete mFreeVMM; delete mBalloonVMM; delete mSharedVMM; };
348
349	void init(ULONG period, ULONG length);
350	void preCollect(CollectorHints& hints, uint64_t iTick);
351	void collect();
352	const char *getUnit() { return "kB"; };
353	ULONG getMinValue() { return 0; };
354	ULONG getMaxValue() { return INT32_MAX; };
355	ULONG getScale() { return 1; }
356	private:
357	SubMetric *mTotal;
358	SubMetric *mUsed;
359	SubMetric *mAvailable;
360	SubMetric *mAllocVMM;
361	SubMetric *mFreeVMM;
362	SubMetric *mBalloonVMM;
363	SubMetric *mSharedVMM;
364	};
365
366	class MachineCpuLoad : public BaseMetric
367	{
368	public:
369	MachineCpuLoad(CollectorHAL hal, ComPtr<IUnknown> object, RTPROCESS process, SubMetric user, SubMetric *kernel)
370	: BaseMetric(hal, "CPU/Load", object), mProcess(process), mUser(user), mKernel(kernel) {};
371	~MachineCpuLoad() { delete mUser; delete mKernel; };
372
373	void init(ULONG period, ULONG length);
374	void collect();
375	const char *getUnit() { return "%"; };
376	ULONG getMinValue() { return 0; };
377	ULONG getMaxValue() { return PM_CPU_LOAD_MULTIPLIER; };
378	ULONG getScale() { return PM_CPU_LOAD_MULTIPLIER / 100; }
379	protected:
380	RTPROCESS mProcess;
381	SubMetric *mUser;
382	SubMetric *mKernel;
383	};
384
385	class MachineCpuLoadRaw : public MachineCpuLoad
386	{
387	public:
388	MachineCpuLoadRaw(CollectorHAL hal, ComPtr<IUnknown> object, RTPROCESS process, SubMetric user, SubMetric *kernel)
389	: MachineCpuLoad(hal, object, process, user, kernel), mHostTotalPrev(0), mProcessUserPrev(0), mProcessKernelPrev(0) {};
390
391	void preCollect(CollectorHints& hints, uint64_t iTick);
392	void collect();
393	private:
394	uint64_t mHostTotalPrev;
395	uint64_t mProcessUserPrev;
396	uint64_t mProcessKernelPrev;
397	};
398
399	class MachineRamUsage : public BaseMetric
400	{
401	public:
402	MachineRamUsage(CollectorHAL hal, ComPtr<IUnknown> object, RTPROCESS process, SubMetric used)
403	: BaseMetric(hal, "RAM/Usage", object), mProcess(process), mUsed(used) {};
404	~MachineRamUsage() { delete mUsed; };
405
406	void init(ULONG period, ULONG length);
407	void preCollect(CollectorHints& hints, uint64_t iTick);
408	void collect();
409	const char *getUnit() { return "kB"; };
410	ULONG getMinValue() { return 0; };
411	ULONG getMaxValue() { return INT32_MAX; };
412	ULONG getScale() { return 1; }
413	private:
414	RTPROCESS mProcess;
415	SubMetric *mUsed;
416	};
417
418
419	class GuestCpuLoad : public BaseMetric
420	{
421	public:
422	GuestCpuLoad(CollectorGuestHAL hal, ComPtr<IUnknown> object, SubMetric user, SubMetric kernel, SubMetric idle)
423	: BaseMetric(hal, "CPU/Load", object), mUser(user), mKernel(kernel), mIdle(idle), mGuestHAL(hal) {};
424	~GuestCpuLoad() { delete mUser; delete mKernel; delete mIdle; };
425
426	void init(ULONG period, ULONG length);
427	void preCollect(CollectorHints& hints, uint64_t iTick);
428	void collect();
429	const char *getUnit() { return "%"; };
430	ULONG getMinValue() { return 0; };
431	ULONG getMaxValue() { return PM_CPU_LOAD_MULTIPLIER; };
432	ULONG getScale() { return PM_CPU_LOAD_MULTIPLIER / 100; }
433	protected:
434	SubMetric *mUser;
435	SubMetric *mKernel;
436	SubMetric *mIdle;
437	CollectorGuestHAL *mGuestHAL;
438	};
439
440	class GuestRamUsage : public BaseMetric
441	{
442	public:
443	GuestRamUsage(CollectorGuestHAL hal, ComPtr<IUnknown> object, SubMetric total, SubMetric free, SubMetric balloon, SubMetric shared, SubMetric cache, SubMetric *pagedtotal)
444	: BaseMetric(hal, "RAM/Usage", object), mTotal(total), mFree(free), mBallooned(balloon), mCache(cache), mPagedTotal(pagedtotal), mShared(shared), mGuestHAL(hal) {};
445	~GuestRamUsage() { delete mTotal; delete mFree; delete mBallooned; delete mShared; delete mCache; delete mPagedTotal; };
446
447	void init(ULONG period, ULONG length);
448	void preCollect(CollectorHints& hints, uint64_t iTick);
449	void collect();
450	const char *getUnit() { return "kB"; };
451	ULONG getMinValue() { return 0; };
452	ULONG getMaxValue() { return INT32_MAX; };
453	ULONG getScale() { return 1; }
454	private:
455	SubMetric mTotal, mFree, mBallooned, mCache, mPagedTotal, mShared;
456	CollectorGuestHAL *mGuestHAL;
457	};
458
459	/* Aggregate Functions **************************************************/
460	class Aggregate
461	{
462	public:
463	virtual ULONG compute(ULONG *data, ULONG length) = 0;
464	virtual const char *getName() = 0;
465	};
466
467	class AggregateAvg : public Aggregate
468	{
469	public:
470	virtual ULONG compute(ULONG *data, ULONG length);
471	virtual const char *getName();
472	};
473
474	class AggregateMin : public Aggregate
475	{
476	public:
477	virtual ULONG compute(ULONG *data, ULONG length);
478	virtual const char *getName();
479	};
480
481	class AggregateMax : public Aggregate
482	{
483	public:
484	virtual ULONG compute(ULONG *data, ULONG length);
485	virtual const char *getName();
486	};
487
488	/* Metric Class *********************************************************/
489	class Metric
490	{
491	public:
492	Metric(BaseMetric baseMetric, SubMetric subMetric, Aggregate *aggregate) :
493	mName(subMetric->getName()), mBaseMetric(baseMetric), mSubMetric(subMetric), mAggregate(aggregate)
494	{
495	if (mAggregate)
496	{
497	mName.append(":");
498	mName.append(mAggregate->getName());
499	}
500	}
501
502	~Metric()
503	{
504	delete mAggregate;
505	}
506	bool associatedWith(ComPtr<IUnknown> object) { return getObject() == object; };
507
508	const char *getName() { return mName.c_str(); };
509	ComPtr<IUnknown> getObject() { return mBaseMetric->getObject(); };
510	const char *getDescription()
511	{ return mAggregate ? "" : mSubMetric->getDescription(); };
512	const char *getUnit() { return mBaseMetric->getUnit(); };
513	ULONG getMinValue() { return mBaseMetric->getMinValue(); };
514	ULONG getMaxValue() { return mBaseMetric->getMaxValue(); };
515	ULONG getPeriod() { return mBaseMetric->getPeriod(); };
516	ULONG getLength()
517	{ return mAggregate ? 1 : mBaseMetric->getLength(); };
518	ULONG getScale() { return mBaseMetric->getScale(); }
519	void query(ULONG *data, ULONG count, ULONG *sequenceNumber);
520
521	private:
522	iprt::MiniString mName;
523	BaseMetric *mBaseMetric;
524	SubMetric *mSubMetric;
525	Aggregate *mAggregate;
526	};
527
528	/* Filter Class *********************************************************/
529
530	class Filter
531	{
532	public:
533	Filter(ComSafeArrayIn(IN_BSTR, metricNames),
534	ComSafeArrayIn(IUnknown * , objects));
535	static bool patternMatch(const char pszPat, const char pszName,
536	bool fSeenColon = false);
537	bool match(const ComPtr<IUnknown> object, const iprt::MiniString &name) const;
538	private:
539	void init(ComSafeArrayIn(IN_BSTR, metricNames),
540	ComSafeArrayIn(IUnknown * , objects));
541
542	typedef std::pair<const ComPtr<IUnknown>, const iprt::MiniString> FilterElement;
543	typedef std::list<FilterElement> ElementList;
544
545	ElementList mElements;
546
547	void processMetricList(const com::Utf8Str &name, const ComPtr<IUnknown> object);
548	};
549	}
550	#endif /* ___performance_h */
551	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

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source: vbox/trunk/src/VBox/Main/include/Performance.h@ 34575

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