Performance.cpp@ 29161

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1	/* $Id: Performance.cpp 28800 2010-04-27 08:22:32Z vboxsync $ */
2
3	/** @file
4	*
5	* VBox Performance Classes implementation.
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
20	/*
21	* @todo list:
22	*
23	* 1) Detection of erroneous metric names
24	*/
25
26	#ifndef VBOX_COLLECTOR_TEST_CASE
27	#include "VirtualBoxImpl.h"
28	#include "MachineImpl.h"
29	#endif
30	#include "Performance.h"
31
32	#include <VBox/com/array.h>
33	#include <VBox/com/ptr.h>
34	#include <VBox/com/string.h>
35	#include <VBox/err.h>
36	#include <iprt/string.h>
37	#include <iprt/mem.h>
38	#include <iprt/cpuset.h>
39
40	#include <algorithm>
41
42	#include "Logging.h"
43
44	using namespace pm;
45
46	// Stubs for non-pure virtual methods
47
48	int CollectorHAL::getHostCpuLoad(ULONG * /* user /, ULONG /* kernel /, ULONG /* idle */)
49	{
50	return E_NOTIMPL;
51	}
52
53	int CollectorHAL::getProcessCpuLoad(RTPROCESS /* process /, ULONG /* user /, ULONG /* kernel */)
54	{
55	return E_NOTIMPL;
56	}
57
58	int CollectorHAL::getRawHostCpuLoad(uint64_t * /* user /, uint64_t /* kernel /, uint64_t /* idle */)
59	{
60	return E_NOTIMPL;
61	}
62
63	int CollectorHAL::getRawProcessCpuLoad(RTPROCESS /* process /, uint64_t /* user /, uint64_t /* kernel /, uint64_t /* total */)
64	{
65	return E_NOTIMPL;
66	}
67
68	int CollectorHAL::getHostMemoryUsage(ULONG * /* total /, ULONG /* used /, ULONG /* available */)
69	{
70	return E_NOTIMPL;
71	}
72
73	int CollectorHAL::getProcessMemoryUsage(RTPROCESS /* process /, ULONG /* used */)
74	{
75	return E_NOTIMPL;
76	}
77
78	int CollectorHAL::enable()
79	{
80	return E_NOTIMPL;
81	}
82
83	int CollectorHAL::disable()
84	{
85	return E_NOTIMPL;
86	}
87
88	/* Generic implementations */
89
90	int CollectorHAL::getHostCpuMHz(ULONG *mhz)
91	{
92	unsigned cCpus = 0;
93	uint64_t u64TotalMHz = 0;
94	RTCPUSET OnlineSet;
95	RTMpGetOnlineSet(&OnlineSet);
96	for (RTCPUID iCpu = 0; iCpu < RTCPUSET_MAX_CPUS; iCpu++)
97	{
98	LogAleksey(("{%p} " LOG_FN_FMT ": Checking if CPU %d is member of online set...\n",
99	this, __PRETTY_FUNCTION__, (int)iCpu));
100	if (RTCpuSetIsMemberByIndex(&OnlineSet, iCpu))
101	{
102	LogAleksey(("{%p} " LOG_FN_FMT ": Getting frequency for CPU %d...\n",
103	this, __PRETTY_FUNCTION__, (int)iCpu));
104	uint32_t uMHz = RTMpGetCurFrequency(RTMpCpuIdFromSetIndex(iCpu));
105	if (uMHz != 0)
106	{
107	LogAleksey(("{%p} " LOG_FN_FMT ": CPU %d %u MHz\n",
108	this, __PRETTY_FUNCTION__, (int)iCpu, uMHz));
109	u64TotalMHz += uMHz;
110	cCpus++;
111	}
112	}
113	}
114
115	AssertReturn(cCpus, VERR_NOT_IMPLEMENTED);
116	*mhz = (ULONG)(u64TotalMHz / cCpus);
117
118	return VINF_SUCCESS;
119	}
120
121	#ifndef VBOX_COLLECTOR_TEST_CASE
122	CollectorGuestHAL::~CollectorGuestHAL()
123	{
124	Assert(!cEnabled);
125	}
126
127	int CollectorGuestHAL::enable()
128	{
129	HRESULT ret = S_OK;
130
131	if (ASMAtomicIncU32(&cEnabled) == 1)
132	{
133	ComPtr<IInternalSessionControl> directControl;
134
135	ret = mMachine->getDirectControl(&directControl);
136	if (ret != S_OK)
137	return ret;
138
139	/* get the associated console; this is a remote call (!) */
140	ret = directControl->GetRemoteConsole(mConsole.asOutParam());
141	if (ret != S_OK)
142	return ret;
143
144	ret = mConsole->COMGETTER(Guest)(mGuest.asOutParam());
145	if (ret == S_OK)
146	mGuest->COMSETTER(StatisticsUpdateInterval)(1 /* 1 sec */);
147	}
148	return ret;
149	}
150
151	int CollectorGuestHAL::disable()
152	{
153	if (ASMAtomicDecU32(&cEnabled) == 0)
154	{
155	Assert(mGuest && mConsole);
156	mGuest->COMSETTER(StatisticsUpdateInterval)(0 /* off */);
157	}
158	return S_OK;
159	}
160
161	int CollectorGuestHAL::preCollect(const CollectorHints& /* hints */, uint64_t iTick)
162	{
163	if ( mGuest
164	&& iTick != mLastTick)
165	{
166	ULONG ulMemAllocTotal, ulMemFreeTotal, ulMemBalloonTotal;
167
168	mGuest->InternalGetStatistics(&mCpuUser, &mCpuKernel, &mCpuIdle,
169	&mMemTotal, &mMemFree, &mMemBalloon, &mMemCache,
170	&mPageTotal, &ulMemAllocTotal, &ulMemFreeTotal, &ulMemBalloonTotal);
171
172	if (mHostHAL)
173	mHostHAL->setMemHypervisorStats(ulMemAllocTotal, ulMemFreeTotal, ulMemBalloonTotal);
174
175	mLastTick = iTick;
176	}
177	return S_OK;
178	}
179
180	#endif /* !VBOX_COLLECTOR_TEST_CASE */
181
182	bool BaseMetric::collectorBeat(uint64_t nowAt)
183	{
184	if (isEnabled())
185	{
186	if (nowAt - mLastSampleTaken >= mPeriod * 1000)
187	{
188	mLastSampleTaken = nowAt;
189	Log4(("{%p} " LOG_FN_FMT ": Collecting %s for obj(%p)...\n",
190	this, __PRETTY_FUNCTION__, getName(), (void *)mObject));
191	return true;
192	}
193	}
194	return false;
195	}
196
197	/*bool BaseMetric::associatedWith(ComPtr<IUnknown> object)
198	{
199	LogFlowThisFunc(("mObject(%p) == object(%p) is %s.\n", mObject, object, mObject == object ? "true" : "false"));
200	return mObject == object;
201	}*/
202
203	void HostCpuLoad::init(ULONG period, ULONG length)
204	{
205	mPeriod = period;
206	mLength = length;
207	mUser->init(mLength);
208	mKernel->init(mLength);
209	mIdle->init(mLength);
210	}
211
212	void HostCpuLoad::collect()
213	{
214	ULONG user, kernel, idle;
215	int rc = mHAL->getHostCpuLoad(&user, &kernel, &idle);
216	if (RT_SUCCESS(rc))
217	{
218	mUser->put(user);
219	mKernel->put(kernel);
220	mIdle->put(idle);
221	}
222	}
223
224	void HostCpuLoadRaw::preCollect(CollectorHints& hints, uint64_t /* iTick */)
225	{
226	hints.collectHostCpuLoad();
227	}
228
229	void HostCpuLoadRaw::collect()
230	{
231	uint64_t user, kernel, idle;
232	uint64_t userDiff, kernelDiff, idleDiff, totalDiff;
233
234	int rc = mHAL->getRawHostCpuLoad(&user, &kernel, &idle);
235	if (RT_SUCCESS(rc))
236	{
237	userDiff = user - mUserPrev;
238	kernelDiff = kernel - mKernelPrev;
239	idleDiff = idle - mIdlePrev;
240	totalDiff = userDiff + kernelDiff + idleDiff;
241
242	if (totalDiff == 0)
243	{
244	/* This is only possible if none of counters has changed! */
245	LogFlowThisFunc(("Impossible! User, kernel and idle raw "
246	"counters has not changed since last sample.\n" ));
247	mUser->put(0);
248	mKernel->put(0);
249	mIdle->put(0);
250	}
251	else
252	{
253	mUser->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * userDiff / totalDiff));
254	mKernel->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * kernelDiff / totalDiff));
255	mIdle->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * idleDiff / totalDiff));
256	}
257
258	mUserPrev = user;
259	mKernelPrev = kernel;
260	mIdlePrev = idle;
261	}
262	}
263
264	void HostCpuMhz::init(ULONG period, ULONG length)
265	{
266	mPeriod = period;
267	mLength = length;
268	mMHz->init(mLength);
269	}
270
271	void HostCpuMhz::collect()
272	{
273	ULONG mhz;
274	int rc = mHAL->getHostCpuMHz(&mhz);
275	if (RT_SUCCESS(rc))
276	mMHz->put(mhz);
277	}
278
279	void HostRamUsage::init(ULONG period, ULONG length)
280	{
281	mPeriod = period;
282	mLength = length;
283	mTotal->init(mLength);
284	mUsed->init(mLength);
285	mAvailable->init(mLength);
286	mAllocVMM->init(mLength);
287	mFreeVMM->init(mLength);
288	mBalloonVMM->init(mLength);
289	}
290
291	void HostRamUsage::preCollect(CollectorHints& hints, uint64_t /* iTick */)
292	{
293	hints.collectHostRamUsage();
294	}
295
296	void HostRamUsage::collect()
297	{
298	ULONG total, used, available;
299	int rc = mHAL->getHostMemoryUsage(&total, &used, &available);
300	if (RT_SUCCESS(rc))
301	{
302	mTotal->put(total);
303	mUsed->put(used);
304	mAvailable->put(available);
305
306	}
307	ULONG allocVMM, freeVMM, balloonVMM;
308
309	mHAL->getMemHypervisorStats(&allocVMM, &freeVMM, &balloonVMM);
310	mAllocVMM->put(allocVMM);
311	mFreeVMM->put(freeVMM);
312	mBalloonVMM->put(balloonVMM);
313	}
314
315
316
317	void MachineCpuLoad::init(ULONG period, ULONG length)
318	{
319	mPeriod = period;
320	mLength = length;
321	mUser->init(mLength);
322	mKernel->init(mLength);
323	}
324
325	void MachineCpuLoad::collect()
326	{
327	ULONG user, kernel;
328	int rc = mHAL->getProcessCpuLoad(mProcess, &user, &kernel);
329	if (RT_SUCCESS(rc))
330	{
331	mUser->put(user);
332	mKernel->put(kernel);
333	}
334	}
335
336	void MachineCpuLoadRaw::preCollect(CollectorHints& hints, uint64_t /* iTick */)
337	{
338	hints.collectProcessCpuLoad(mProcess);
339	}
340
341	void MachineCpuLoadRaw::collect()
342	{
343	uint64_t processUser, processKernel, hostTotal;
344
345	int rc = mHAL->getRawProcessCpuLoad(mProcess, &processUser, &processKernel, &hostTotal);
346	if (RT_SUCCESS(rc))
347	{
348	if (hostTotal == mHostTotalPrev)
349	{
350	/* Nearly impossible, but... */
351	mUser->put(0);
352	mKernel->put(0);
353	}
354	else
355	{
356	mUser->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * (processUser - mProcessUserPrev) / (hostTotal - mHostTotalPrev)));
357	mKernel->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * (processKernel - mProcessKernelPrev ) / (hostTotal - mHostTotalPrev)));
358	}
359
360	mHostTotalPrev = hostTotal;
361	mProcessUserPrev = processUser;
362	mProcessKernelPrev = processKernel;
363	}
364	}
365
366	void MachineRamUsage::init(ULONG period, ULONG length)
367	{
368	mPeriod = period;
369	mLength = length;
370	mUsed->init(mLength);
371	}
372
373	void MachineRamUsage::preCollect(CollectorHints& hints, uint64_t /* iTick */)
374	{
375	hints.collectProcessRamUsage(mProcess);
376	}
377
378	void MachineRamUsage::collect()
379	{
380	ULONG used;
381	int rc = mHAL->getProcessMemoryUsage(mProcess, &used);
382	if (RT_SUCCESS(rc))
383	mUsed->put(used);
384	}
385
386
387	void GuestCpuLoad::init(ULONG period, ULONG length)
388	{
389	mPeriod = period;
390	mLength = length;
391
392	mUser->init(mLength);
393	mKernel->init(mLength);
394	mIdle->init(mLength);
395	}
396
397	void GuestCpuLoad::preCollect(CollectorHints& hints, uint64_t iTick)
398	{
399	mHAL->preCollect(hints, iTick);
400	}
401
402	void GuestCpuLoad::collect()
403	{
404	ULONG CpuUser = 0, CpuKernel = 0, CpuIdle = 0;
405
406	mGuestHAL->getGuestCpuLoad(&CpuUser, &CpuKernel, &CpuIdle);
407	mUser->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * CpuUser) / 100);
408	mKernel->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * CpuKernel) / 100);
409	mIdle->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * CpuIdle) / 100);
410	}
411
412	void GuestRamUsage::init(ULONG period, ULONG length)
413	{
414	mPeriod = period;
415	mLength = length;
416
417	mTotal->init(mLength);
418	mFree->init(mLength);
419	mBallooned->init(mLength);
420	mCache->init(mLength);
421	mPagedTotal->init(mLength);
422	}
423
424	void GuestRamUsage::preCollect(CollectorHints& hints, uint64_t iTick)
425	{
426	mHAL->preCollect(hints, iTick);
427	}
428
429	void GuestRamUsage::collect()
430	{
431	ULONG ulMemTotal = 0, ulMemFree = 0, ulMemBalloon = 0, ulMemCache = 0, ulPageTotal = 0;
432
433	mGuestHAL->getGuestMemLoad(&ulMemTotal, &ulMemFree, &ulMemBalloon, &ulMemCache, &ulPageTotal);
434	mTotal->put(ulMemTotal);
435	mFree->put(ulMemFree);
436	mBallooned->put(ulMemBalloon);
437	mCache->put(ulMemCache);
438	mPagedTotal->put(ulPageTotal);
439	}
440
441	void CircularBuffer::init(ULONG ulLength)
442	{
443	if (mData)
444	RTMemFree(mData);
445	mLength = ulLength;
446	if (mLength)
447	mData = (ULONG)RTMemAllocZ(ulLength sizeof(ULONG));
448	else
449	mData = NULL;
450	mWrapped = false;
451	mEnd = 0;
452	mSequenceNumber = 0;
453	}
454
455	ULONG CircularBuffer::length()
456	{
457	return mWrapped ? mLength : mEnd;
458	}
459
460	void CircularBuffer::put(ULONG value)
461	{
462	if (mData)
463	{
464	mData[mEnd++] = value;
465	if (mEnd >= mLength)
466	{
467	mEnd = 0;
468	mWrapped = true;
469	}
470	++mSequenceNumber;
471	}
472	}
473
474	void CircularBuffer::copyTo(ULONG *data)
475	{
476	if (mWrapped)
477	{
478	memcpy(data, mData + mEnd, (mLength - mEnd) * sizeof(ULONG));
479	// Copy the wrapped part
480	if (mEnd)
481	memcpy(data + (mLength - mEnd), mData, mEnd * sizeof(ULONG));
482	}
483	else
484	memcpy(data, mData, mEnd * sizeof(ULONG));
485	}
486
487	void SubMetric::query(ULONG *data)
488	{
489	copyTo(data);
490	}
491
492	void Metric::query(ULONG *data, ULONG count, ULONG *sequenceNumber)
493	{
494	ULONG length;
495	ULONG *tmpData;
496
497	length = mSubMetric->length();
498	*sequenceNumber = mSubMetric->getSequenceNumber() - length;
499	if (length)
500	{
501	tmpData = (ULONG)RTMemAlloc(sizeof(tmpData)*length);
502	mSubMetric->query(tmpData);
503	if (mAggregate)
504	{
505	*count = 1;
506	data = (ULONG)RTMemAlloc(sizeof(**data));
507	**data = mAggregate->compute(tmpData, length);
508	RTMemFree(tmpData);
509	}
510	else
511	{
512	*count = length;
513	*data = tmpData;
514	}
515	}
516	else
517	{
518	*count = 0;
519	*data = 0;
520	}
521	}
522
523	ULONG AggregateAvg::compute(ULONG *data, ULONG length)
524	{
525	uint64_t tmp = 0;
526	for (ULONG i = 0; i < length; ++i)
527	tmp += data[i];
528	return (ULONG)(tmp / length);
529	}
530
531	const char * AggregateAvg::getName()
532	{
533	return "avg";
534	}
535
536	ULONG AggregateMin::compute(ULONG *data, ULONG length)
537	{
538	ULONG tmp = *data;
539	for (ULONG i = 0; i < length; ++i)
540	if (data[i] < tmp)
541	tmp = data[i];
542	return tmp;
543	}
544
545	const char * AggregateMin::getName()
546	{
547	return "min";
548	}
549
550	ULONG AggregateMax::compute(ULONG *data, ULONG length)
551	{
552	ULONG tmp = *data;
553	for (ULONG i = 0; i < length; ++i)
554	if (data[i] > tmp)
555	tmp = data[i];
556	return tmp;
557	}
558
559	const char * AggregateMax::getName()
560	{
561	return "max";
562	}
563
564	Filter::Filter(ComSafeArrayIn(IN_BSTR, metricNames),
565	ComSafeArrayIn(IUnknown *, objects))
566	{
567	/*
568	* Let's work around null/empty safe array mess. I am not sure there is
569	* a way to pass null arrays via webservice, I haven't found one. So I
570	* guess the users will be forced to use empty arrays instead. Constructing
571	* an empty SafeArray is a bit awkward, so what we do in this method is
572	* actually convert null arrays to empty arrays and pass them down to
573	* init() method. If someone knows how to do it better, please be my guest,
574	* fix it.
575	*/
576	if (ComSafeArrayInIsNull(metricNames))
577	{
578	com::SafeArray<BSTR> nameArray;
579	if (ComSafeArrayInIsNull(objects))
580	{
581	com::SafeIfaceArray<IUnknown> objectArray;
582	objectArray.reset(0);
583	init(ComSafeArrayAsInParam(nameArray),
584	ComSafeArrayAsInParam(objectArray));
585	}
586	else
587	{
588	com::SafeIfaceArray<IUnknown> objectArray(ComSafeArrayInArg(objects));
589	init(ComSafeArrayAsInParam(nameArray),
590	ComSafeArrayAsInParam(objectArray));
591	}
592	}
593	else
594	{
595	com::SafeArray<IN_BSTR> nameArray(ComSafeArrayInArg(metricNames));
596	if (ComSafeArrayInIsNull(objects))
597	{
598	com::SafeIfaceArray<IUnknown> objectArray;
599	objectArray.reset(0);
600	init(ComSafeArrayAsInParam(nameArray),
601	ComSafeArrayAsInParam(objectArray));
602	}
603	else
604	{
605	com::SafeIfaceArray<IUnknown> objectArray(ComSafeArrayInArg(objects));
606	init(ComSafeArrayAsInParam(nameArray),
607	ComSafeArrayAsInParam(objectArray));
608	}
609	}
610	}
611
612	void Filter::init(ComSafeArrayIn(IN_BSTR, metricNames),
613	ComSafeArrayIn(IUnknown *, objects))
614	{
615	com::SafeArray<IN_BSTR> nameArray(ComSafeArrayInArg(metricNames));
616	com::SafeIfaceArray<IUnknown> objectArray(ComSafeArrayInArg(objects));
617
618	if (!objectArray.size())
619	{
620	if (nameArray.size())
621	{
622	for (size_t i = 0; i < nameArray.size(); ++i)
623	processMetricList(com::Utf8Str(nameArray[i]), ComPtr<IUnknown>());
624	}
625	else
626	processMetricList("*", ComPtr<IUnknown>());
627	}
628	else
629	{
630	for (size_t i = 0; i < objectArray.size(); ++i)
631	switch (nameArray.size())
632	{
633	case 0:
634	processMetricList("*", objectArray[i]);
635	break;
636	case 1:
637	processMetricList(com::Utf8Str(nameArray[0]), objectArray[i]);
638	break;
639	default:
640	processMetricList(com::Utf8Str(nameArray[i]), objectArray[i]);
641	break;
642	}
643	}
644	}
645
646	void Filter::processMetricList(const com::Utf8Str &name, const ComPtr<IUnknown> object)
647	{
648	size_t startPos = 0;
649
650	for (size_t pos = name.find(",");
651	pos != com::Utf8Str::npos;
652	pos = name.find(",", startPos))
653	{
654	mElements.push_back(std::make_pair(object, iprt::MiniString(name.substr(startPos, pos - startPos).c_str())));
655	startPos = pos + 1;
656	}
657	mElements.push_back(std::make_pair(object, iprt::MiniString(name.substr(startPos).c_str())));
658	}
659
660	/**
661	* The following method was borrowed from stamR3Match (VMM/STAM.cpp) and
662	* modified to handle the special case of trailing colon in the pattern.
663	*
664	* @returns True if matches, false if not.
665	* @param pszPat Pattern.
666	* @param pszName Name to match against the pattern.
667	* @param fSeenColon Seen colon (':').
668	*/
669	bool Filter::patternMatch(const char pszPat, const char pszName,
670	bool fSeenColon)
671	{
672	/* ASSUMES ASCII */
673	for (;;)
674	{
675	char chPat = *pszPat;
676	switch (chPat)
677	{
678	default:
679	if (*pszName != chPat)
680	return false;
681	break;
682
683	case '*':
684	{
685	while ((chPat = ++pszPat) == '' \|\| chPat == '?')
686	/* nothing */;
687
688	/* Handle a special case, the mask terminating with a colon. */
689	if (chPat == ':')
690	{
691	if (!fSeenColon && !pszPat[1])
692	return !strchr(pszName, ':');
693	fSeenColon = true;
694	}
695
696	for (;;)
697	{
698	char ch = *pszName++;
699	if ( ch == chPat
700	&& ( !chPat
701	\|\| patternMatch(pszPat + 1, pszName, fSeenColon)))
702	return true;
703	if (!ch)
704	return false;
705	}
706	/* won't ever get here */
707	break;
708	}
709
710	case '?':
711	if (!*pszName)
712	return false;
713	break;
714
715	/* Handle a special case, the mask terminating with a colon. */
716	case ':':
717	if (!fSeenColon && !pszPat[1])
718	return !*pszName;
719	if (*pszName != ':')
720	return false;
721	fSeenColon = true;
722	break;
723
724	case '\0':
725	return !*pszName;
726	}
727	pszName++;
728	pszPat++;
729	}
730	return true;
731	}
732
733	bool Filter::match(const ComPtr<IUnknown> object, const iprt::MiniString &name) const
734	{
735	ElementList::const_iterator it;
736
737	LogAleksey(("Filter::match(%p, %s)\n", static_cast<const IUnknown*> (object), name.c_str()));
738	for (it = mElements.begin(); it != mElements.end(); it++)
739	{
740	LogAleksey(("...matching against(%p, %s)\n", static_cast<const IUnknown> ((it).first), (*it).second.c_str()));
741	if ((it).first.isNull() \|\| (it).first == object)
742	{
743	// Objects match, compare names
744	if (patternMatch((*it).second.c_str(), name.c_str()))
745	{
746	LogFlowThisFunc(("...found!\n"));
747	return true;
748	}
749	}
750	}
751	LogAleksey(("...no matches!\n"));
752	return false;
753	}
754	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

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source: vbox/trunk/src/VBox/Main/Performance.cpp@ 29161

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