frequency max sawtoothing, 0-100% and CPU usage it follows on all cores
I've never seen frequency max sawtoothing like that or could find examples on the net... I ran variations of msconfig from 8 cores starting at the current point of not designating the number of processors on startup (which solved mouse jerky movements). allowing the BCDEdit detectHAL did nothing. I killed the process and services but can't get rid of the saw tooth or see what is the cause... For once I feel stupid that I see.
processors xeon to dual-core quad on a motherboard s5520hc with 20Gigs of ram and a NVIDIA gtx650. New installation of Windows7. Performance monitor reports CPU 0-7 and all of them are subject to sawtooth synchronizing and CPU usage 0 to 95%. CPU - Z shows the two processors are almost identical in performance. (bus speed varies very little)
Any ideas would be appreciated.
Hello
You will need work with the support of Intel.
Intel - Support
http://www.Intel.com/p/en_US/support
Intel - community and Forums
http://www.Intel.com/content/www/us/en/blogs-communities-social.html
I hope this helps.
Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle="" -="" mark="" twain="" said="" it="">
Tags: Windows
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Hello
You use a desktop or laptop computer?
Is the mouse a mouse wired or wireless?
What is the brand and model of the computer and the mouse?
If you are using a laptop, I suggest to change the sensitivity of the mouse pad.
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Thank youWhat is your operating system?
Please see these documents.
Troubleshooting database JVM cpu consumption or too many JDBC connections in applications 11i [370583.1 ID]
Java consuming 100% of cpu on AIX tries to access the [1075916.1 ID] /tmp/.com_ibm_tools_attach/_notifierThank you
Hussein -
DB Dump slows to Crawl - 100% of CPU usage
We have a BDB occupying about 40 GB of disk, with 3 tables, 2 have about 25 MM records and the 3rd with 1.5 MM records. We have a web service application that works 24/7, with a 'writing' for BDB environment. In a separate JVM using a 'read only' environment for the BDB, I try to empty all the contents of the table (one at a time) of flat files.
I tried the DbDump utility in the pilot of sleepycat, as well as my own program (who has worked in the past on this same DB). The small empty table without problem. Landfills for large tables going at normal speed, but after some time they bog completely to the point of dumping 0-100 records per second... Ouch. When the discharge reaches that level of performance that is painful, it is completely connecting the CPU at 100%. Two large tables, one with the small records exports about 20 MM records before it slows down to a crawl. The one with the big records dumps about 2.5 MM.
If I stop the discharge and start a new cursor to the last ID I threw in the previous race, the new dump starts again at normal speed. So it doesn't seem to be any kind of problem with BDB itself storage. Perhaps there is a leak of some kind in the pilot of sleepycat, or more likely a config that I am misunderstanding.
When you run the last dump of attempt, I printed the environment stats every 5 minutes. Files to the end of the performance show very little difference in the 5 minutes of execution, with the exception of nNodesScanned and nThreadUnavailable set increases. I have really no idea what mean these stats, so I posted a few cuts below for review.
Someone at - it indexes?
Stats 05:25 minutes
==================================
I/o: The log file opens, fsyncs writings, readings, absences from the cache.
bufferBytes = 3, 145, 728
endOfLog = 0xa701/0x1c7005c
nBytesReadFromWriteQueue = 0
nBytesWrittenFromWriteQueue = 0
nCacheMiss = 6, 110, 502
nFSyncRequests = 0
nFSyncTimeouts = 0
nFSyncs = 0
nFileOpens = 62, 910
nLogBuffers = 3
nLogFSyncs = 0
nNotResident = 6, 110, 502
nOpenFiles = 100
nRandomReadBytes = 4, 387, 025 920
nRandomReads = 2, 124, 724
nRandomWriteBytes = 0
nRandomWrites = 0
nReadsFromWriteQueue = 0
nRepeatFaultReads = 230, 139
nSequentialReadBytes = 9, 552, 327, 893
nSequentialReads = 4, 346, 396
nSequentialWriteBytes = 0
nSequentialWrites = 0
nTempBufferWrites = 0
nWriteQueueOverflow = 0
nWriteQueueOverflowFailures = 0
nWritesFromWriteQueue = 0
Cache: Size, assignments and deportation activity.
adminBytes = 94, 858
avgBatchCACHEMODE = 0
avgBatchCRITICAL = 21
avgBatchDAEMON = 0
avgBatchEVICTORTHREAD = 27
avgBatchMANUAL = 0
cacheTotalBytes = 618, 172, 306
614, 931, 584 = dataBytes
lockBytes = 136
nBINsEvictedCACHEMODE = 0
nBINsEvictedCRITICAL = 16, 847
nBINsEvictedDAEMON = 0
nBINsEvictedEVICTORTHREAD = 52, 321
nBINsEvictedMANUAL = 0
nBINsFetch = 6, 537, 087
nBINsFetchMiss = 161, 139
nBINsStripped = 63, 700
nBatchesCACHEMODE = 0
nBatchesCRITICAL = 265
nBatchesDAEMON = 0
nBatchesEVICTORTHREAD = 852
nBatchesMANUAL = 0
nCachedBINs = 91, 827
nCachedUpperINs = 9, 879
nEvictPasses = 4, 250
nINCompactKey = 4, 673
nINNoTarget = 73, 870
nINSparseTarget = 4, 867
nLNsFetch = 18, 230, 686
nLNsFetchMiss = 5, 852, 734
nNodesEvicted = 69, 411
nNodesScanned = 10, 516, 074
nNodesSelected = 135, 241
nRootNodesEvicted = 0
nThreadUnavailable = 6, 359
nUpperINsEvictedCACHEMODE = 0
nUpperINsEvictedCRITICAL = 45
nUpperINsEvictedDAEMON = 0
nUpperINsEvictedEVICTORTHREAD = 201
nUpperINsEvictedMANUAL = 0
nUpperINsFetch = 12, 244, 811
nUpperINsFetchMiss = 10, 199
requiredEvictBytes = 0
sharedCacheTotalBytes = 0
Cleaning: Frequency and extent of the cleansing activity log file.
cleanerBackLog = 0
fileDeletionBacklog = 0
nCleanerDeletions = 0
nCleanerEntriesRead = 0
nCleanerRuns = 0
nClusterLNsProcessed = 0
nINsCleaned = 0
nINsDead = 0
nINsMigrated = 0
nINsObsolete = 0
nLNQueueHits = 0
nLNsCleaned = 0
nLNsDead = 0
nLNsLocked = 0
nLNsMarked = 0
nLNsMigrated = 0
nLNsObsolete = 0
nMarkLNsProcessed = 0
nPendingLNsLocked = 0
nPendingLNsProcessed = 0
nRepeatIteratorReads = 0
nToBeCleanedLNsProcessed = 0
totalLogSize = 46, 529, 378-030
Compression by node: abduction and internal btree nodes.
cursorsBins = 0
dbClosedBins = 0
inCompQueueSize = 0
nonEmptyBins = 0
processedBins = 0
splitBins = 0
Control points: frequency and scope of activity of the control points.
lastCheckpointEnd = 0xa701/0xc5e490
lastCheckpointId = 83, 145
lastCheckpointStart = 0 x 0/0 x 0
nCheckpoints = 0
nDeltaINFlush = 0
nFullBINFlush = 0
nFullINFlush = 0
Environment: Environment general broad statistics.
btreeRelatchesRequired = 363
Locks: Locks held by data operations, lock contention on the lock table.
nLatchAcquireNoWaitUnsuccessful = 0
nLatchAcquiresNoWaitSuccessful = 0
nLatchAcquiresNoWaiters = 0
nLatchAcquiresSelfOwned = 0
nLatchAcquiresWithContention = 0
nLatchReleases = 0
nOwners = 2
nReadLocks = 2
nRequests = 18, 229, 682
nTotalLocks = 2
nWaiters = 0
nWaits = 0
nWriteLocks = 0
Stats 6: 5 minutes after Stats 5 - Normal operation
==========================================================
I/o: The log file opens, fsyncs writings, readings, absences from the cache.
bufferBytes = 3, 145, 728
endOfLog = 0xa701/0x1c7005c
nBytesReadFromWriteQueue = 0
nBytesWrittenFromWriteQueue = 0
nCacheMiss = 7, 059, 709
nFSyncRequests = 0
nFSyncTimeouts = 0
nFSyncs = 0
nFileOpens = 72, 546
nLogBuffers = 3
nLogFSyncs = 0
nNotResident = 7, 059, 709
nOpenFiles = 100
nRandomReadBytes = 5, 043, 661, 824
nRandomReads = 2, 445, 347
nRandomWriteBytes = 0
nRandomWrites = 0
nReadsFromWriteQueue = 0
nRepeatFaultReads = 241, 954
nSequentialReadBytes = 10, 116, 899, 671
nSequentialReads = 4, 996, 431
nSequentialWriteBytes = 0
nSequentialWrites = 0
nTempBufferWrites = 0
nWriteQueueOverflow = 0
nWriteQueueOverflowFailures = 0
nWritesFromWriteQueue = 0
Cache: Size, assignments and deportation activity.
adminBytes = 94, 858
avgBatchCACHEMODE = 0
avgBatchCRITICAL = 17
avgBatchDAEMON = 0
avgBatchEVICTORTHREAD = 27
avgBatchMANUAL = 0
cacheTotalBytes = 618, 139, 394
614, 898, 672 = dataBytes
lockBytes = 136
nBINsEvictedCACHEMODE = 0
nBINsEvictedCRITICAL = 19: 062
nBINsEvictedDAEMON = 0
nBINsEvictedEVICTORTHREAD = 62, 580
nBINsEvictedMANUAL = 0
nBINsFetch = 7, 538, 745
nBINsFetchMiss = 172, 923
nBINsStripped = 76, 024
nBatchesCACHEMODE = 0
nBatchesCRITICAL = 224
nBatchesDAEMON = 0
nBatchesEVICTORTHREAD = 767
nBatchesMANUAL = 0
nCachedBINs = 91, 137
nCachedUpperINs = 9, 885
nEvictPasses = 5, 035
nINCompactKey = 4, 673
nINNoTarget = 72, 507
nINSparseTarget = 4, 781
nLNsFetch = 21, 093, 476
nLNsFetchMiss = 6, 790, 126
nNodesEvicted = 81, 910
nNodesScanned = 12, 784, 174
nNodesSelected = 160, 543
nRootNodesEvicted = 0
nThreadUnavailable = 7, 430
nUpperINsEvictedCACHEMODE = 0
nUpperINsEvictedCRITICAL = 54
nUpperINsEvictedDAEMON = 0
nUpperINsEvictedEVICTORTHREAD = 217
nUpperINsEvictedMANUAL = 0
nUpperINsFetch = 14, 172, 141
nUpperINsFetchMiss = 10, 230
requiredEvictBytes = 0
sharedCacheTotalBytes = 0
Cleaning: Frequency and extent of the cleansing activity log file.
cleanerBackLog = 0
fileDeletionBacklog = 0
nCleanerDeletions = 0
nCleanerEntriesRead = 0
nCleanerRuns = 0
nClusterLNsProcessed = 0
nINsCleaned = 0
nINsDead = 0
nINsMigrated = 0
nINsObsolete = 0
nLNQueueHits = 0
nLNsCleaned = 0
nLNsDead = 0
nLNsLocked = 0
nLNsMarked = 0
nLNsMigrated = 0
nLNsObsolete = 0
nMarkLNsProcessed = 0
nPendingLNsLocked = 0
nPendingLNsProcessed = 0
nRepeatIteratorReads = 0
nToBeCleanedLNsProcessed = 0
totalLogSize = 46, 529, 378-030
Compression by node: abduction and internal btree nodes.
cursorsBins = 0
dbClosedBins = 0
inCompQueueSize = 0
nonEmptyBins = 0
processedBins = 0
splitBins = 0
Control points: frequency and scope of activity of the control points.
lastCheckpointEnd = 0xa701/0xc5e490
lastCheckpointId = 83, 145
lastCheckpointStart = 0 x 0/0 x 0
nCheckpoints = 0
nDeltaINFlush = 0
nFullBINFlush = 0
nFullINFlush = 0
Environment: Environment general broad statistics.
btreeRelatchesRequired = 363
Locks: Locks held by data operations, lock contention on the lock table.
nLatchAcquireNoWaitUnsuccessful = 0
nLatchAcquiresNoWaitSuccessful = 0
nLatchAcquiresNoWaiters = 0
nLatchAcquiresSelfOwned = 0
nLatchAcquiresWithContention = 0
nLatchReleases = 0
nOwners = 2
nReadLocks = 2
nRequests = 21, 092, 472
nTotalLocks = 2
nWaiters = 0
nWaits = 0
nWriteLocks = 0
Stats 35: nearly 3 hours in
==================================
I/o: The log file opens, fsyncs writings, readings, absences from the cache.
bufferBytes = 3, 145, 728
endOfLog = 0xa701/0x1c7005c
nBytesReadFromWriteQueue = 0
nBytesWrittenFromWriteQueue = 0
nCacheMiss = 23, 599, 023
nFSyncRequests = 0
nFSyncTimeouts = 0
nFSyncs = 0
nFileOpens = 245, 062
nLogBuffers = 3
nLogFSyncs = 0
nNotResident = 23, 599, 023
nOpenFiles = 100
nRandomReadBytes = 16, 519, 197, 696
nRandomReads = 8, 048, 636
nRandomWriteBytes = 0
nRandomWrites = 0
nReadsFromWriteQueue = 0
nRepeatFaultReads = 448, 164
nSequentialReadBytes = 34, 342, 084, 162
nSequentialReads = 16, 311, 182
nSequentialWriteBytes = 0
nSequentialWrites = 0
nTempBufferWrites = 0
nWriteQueueOverflow = 0
nWriteQueueOverflowFailures = 0
nWritesFromWriteQueue = 0
Cache: Size, assignments and deportation activity.
adminBytes = 94, 858
avgBatchCACHEMODE = 0
avgBatchCRITICAL = 4
avgBatchDAEMON = 0
avgBatchEVICTORTHREAD = 4
avgBatchMANUAL = 0
cacheTotalBytes = 618, 608, 050
615, 367, 328 = dataBytes
lockBytes = 136
nBINsEvictedCACHEMODE = 0
nBINsEvictedCRITICAL = 47, 462
nBINsEvictedDAEMON = 0
nBINsEvictedEVICTORTHREAD = 250, 549
nBINsEvictedMANUAL = 0
nBINsFetch = 25, 437, 033
nBINsFetchMiss = 378, 634
nBINsStripped = 291, 420
nBatchesCACHEMODE = 0
nBatchesCRITICAL = 202
nBatchesDAEMON = 0
nBatchesEVICTORTHREAD = 2, 377
nBatchesMANUAL = 0
nCachedBINs = 80, 479
nCachedUpperINs = 9, 844
nEvictPasses = 51, 670
nINCompactKey = 4, 673
nINNoTarget = 50, 893
nINSparseTarget = 3, 131
nLNsFetch = 71, 421, 061
nLNsFetchMiss = 23, 123, 231
nNodesEvicted = 298, 815
nNodesScanned = 3, 112, 404, 708
nNodesSelected = 824, 668
nRootNodesEvicted = 0
nThreadUnavailable = 294, 966
nUpperINsEvictedCACHEMODE = 0
nUpperINsEvictedCRITICAL = 125
nUpperINsEvictedDAEMON = 0
nUpperINsEvictedEVICTORTHREAD = 685
nUpperINsEvictedMANUAL = 0
nUpperINsFetch = 48, 198, 643
nUpperINsFetchMiss = 10, 728
requiredEvictBytes = 639
sharedCacheTotalBytes = 0
Cleaning: Frequency and extent of the cleansing activity log file.
cleanerBackLog = 0
fileDeletionBacklog = 0
nCleanerDeletions = 0
nCleanerEntriesRead = 0
nCleanerRuns = 0
nClusterLNsProcessed = 0
nINsCleaned = 0
nINsDead = 0
nINsMigrated = 0
nINsObsolete = 0
nLNQueueHits = 0
nLNsCleaned = 0
nLNsDead = 0
nLNsLocked = 0
nLNsMarked = 0
nLNsMigrated = 0
nLNsObsolete = 0
nMarkLNsProcessed = 0
nPendingLNsLocked = 0
nPendingLNsProcessed = 0
nRepeatIteratorReads = 0
nToBeCleanedLNsProcessed = 0
totalLogSize = 46, 529, 378-030
Compression by node: abduction and internal btree nodes.
cursorsBins = 0
dbClosedBins = 0
inCompQueueSize = 0
nonEmptyBins = 0
processedBins = 0
splitBins = 0
Control points: frequency and scope of activity of the control points.
lastCheckpointEnd = 0xa701/0xc5e490
lastCheckpointId = 83, 145
lastCheckpointStart = 0 x 0/0 x 0
nCheckpoints = 0
nDeltaINFlush = 0
nFullBINFlush = 0
nFullINFlush = 0
Environment: Environment general broad statistics.
btreeRelatchesRequired = 363
Locks: Locks held by data operations, lock contention on the lock table.
nLatchAcquireNoWaitUnsuccessful = 0
nLatchAcquiresNoWaitSuccessful = 0
nLatchAcquiresNoWaiters = 0
nLatchAcquiresSelfOwned = 0
nLatchAcquiresWithContention = 0
nLatchReleases = 0
nOwners = 2
nReadLocks = 2
nRequests = 71, 420, 057
nTotalLocks = 2
nWaiters = 0
nWaits = 0
nWriteLocks = 0
His stats 36: 5 minutes after Stats 35 - abysmal performance
==========================================================
I/o: The log file opens, fsyncs writings, readings, absences from the cache.
bufferBytes = 3, 145, 728
endOfLog = 0xa701/0x1c7005c
nBytesReadFromWriteQueue = 0
nBytesWrittenFromWriteQueue = 0
nCacheMiss = 23, 599, 314
nFSyncRequests = 0
nFSyncTimeouts = 0
nFSyncs = 0
nFileOpens = 245, 063
nLogBuffers = 3
nLogFSyncs = 0
nNotResident = 23, 599, 314
nOpenFiles = 100
nRandomReadBytes = 16, 519, 396, 352
nRandomReads = 8, 048, 733
nRandomWriteBytes = 0
nRandomWrites = 0
nReadsFromWriteQueue = 0
nRepeatFaultReads = 448, 166
nSequentialReadBytes = 34, 342, 490 293
nSequentialReads = 16, 311, 379
nSequentialWriteBytes = 0
nSequentialWrites = 0
nTempBufferWrites = 0
nWriteQueueOverflow = 0
nWriteQueueOverflowFailures = 0
nWritesFromWriteQueue = 0
Cache: Size, assignments and deportation activity.
adminBytes = 94, 858
avgBatchCACHEMODE = 0
avgBatchCRITICAL = 4
avgBatchDAEMON = 0
avgBatchEVICTORTHREAD = 4
avgBatchMANUAL = 0
cacheTotalBytes = 618, 607, 586
615, 366, 864 = dataBytes
lockBytes = 136
nBINsEvictedCACHEMODE = 0
nBINsEvictedCRITICAL = 47, 463
nBINsEvictedDAEMON = 0
nBINsEvictedEVICTORTHREAD = 250, 551
nBINsEvictedMANUAL = 0
nBINsFetch = 25, 462, 823
nBINsFetchMiss = 378, 636
nBINsStripped = 291, 423
nBatchesCACHEMODE = 0
nBatchesCRITICAL = 194
nBatchesDAEMON = 0
nBatchesEVICTORTHREAD = 2, 628
nBatchesMANUAL = 0
nCachedBINs = 80, 478
nCachedUpperINs = 9, 844
nEvictPasses = 54, 594
nINCompactKey = 4, 673
nINNoTarget = 50, 891
nINSparseTarget = 3, 131
nLNsFetch = 71, 447, 426
nLNsFetchMiss = 23, 123, 520
nNodesEvicted = 298, 818
nNodesScanned = 3, 701, 931-012
nNodesSelected = 837, 417
nRootNodesEvicted = 0
nThreadUnavailable = 317, 852
nUpperINsEvictedCACHEMODE = 0
nUpperINsEvictedCRITICAL = 125
nUpperINsEvictedDAEMON = 0
nUpperINsEvictedEVICTORTHREAD = 685
nUpperINsEvictedMANUAL = 0
nUpperINsFetch = 48, 224, 717
nUpperINsFetchMiss = 10, 728
requiredEvictBytes = 175
sharedCacheTotalBytes = 0
Cleaning: Frequency and extent of the cleansing activity log file.
cleanerBackLog = 0
fileDeletionBacklog = 0
nCleanerDeletions = 0
nCleanerEntriesRead = 0
nCleanerRuns = 0
nClusterLNsProcessed = 0
nINsCleaned = 0
nINsDead = 0
nINsMigrated = 0
nINsObsolete = 0
nLNQueueHits = 0
nLNsCleaned = 0
nLNsDead = 0
nLNsLocked = 0
nLNsMarked = 0
nLNsMigrated = 0
nLNsObsolete = 0
nMarkLNsProcessed = 0
nPendingLNsLocked = 0
nPendingLNsProcessed = 0
nRepeatIteratorReads = 0
nToBeCleanedLNsProcessed = 0
totalLogSize = 46, 529, 378-030
Compression by node: abduction and internal btree nodes.
cursorsBins = 0
dbClosedBins = 0
inCompQueueSize = 0
nonEmptyBins = 0
processedBins = 0
splitBins = 0
Control points: frequency and scope of activity of the control points.
lastCheckpointEnd = 0xa701/0xc5e490
lastCheckpointId = 83, 145
lastCheckpointStart = 0 x 0/0 x 0
nCheckpoints = 0
nDeltaINFlush = 0
nFullBINFlush = 0
nFullINFlush = 0
Environment: Environment general broad statistics.
btreeRelatchesRequired = 363
Locks: Locks held by data operations, lock contention on the lock table.
nLatchAcquireNoWaitUnsuccessful = 0
nLatchAcquiresNoWaitSuccessful = 0
nLatchAcquiresNoWaiters = 0
nLatchAcquiresSelfOwned = 0
nLatchAcquiresWithContention = 0
nLatchReleases = 0
nOwners = 2
nReadLocks = 2
nRequests = 71, 446, 422
nTotalLocks = 2
nWaiters = 0
nWaits = 0
nWriteLocks = 0Please report the thread dumps. These show what we expect, if our hypothesis on the cause of the problem is correct.
-mark -
How do I get it back once it has been before?
You could be in tiny footprint mode. See:
http://Windows.Microsoft.com/en-us/Windows-Vista/troubleshoot-Task-Manager-problems
You need the fourth question.
This is for XP but always true http://support.microsoft.com/default.aspx?scid=kb;en-us;193050
-
NiFpga_ReadFifo high CPU usage
Hello world
I'm doing some tests with the card PCI-7811R installed in a PC with OpenSUSE 13.1 and 14 OR RIO. The C API of NI FPGA using, I found some issues related to the use of the CPU when my program is waiting the values to insert into a target for the FIFO DMA elements of 64-bit host.
It is the FPGA VI that I use for testing. He waits for a signal generated in an another VI (the signal is generated at a rate defined by the user), reads the input values and insert them into the FIFO. My C++ program awaits the FIFO for the requested amount of samples (using the NiFpga_ReadFifoU64 function with infinite time-out) and do a simple change detection. The program runs as expected but it consumes 100% CPU time without worrying about the sampling frequency (tested with values between 10 and 15360 samples per second). I tried to leave only the code that reads the FIFO, but the problem persists.
Another thing that happens is the oversight body for process and kworker consumes a lot of CPU when the sampling rate and the amount of samples is the same (this causes the NiFpga_ReadFifoU64 function must be run once per second).
This only happens with this program and the two processes CPU consuption are not constant. They return to normal when the program is stopped.
I tried to use NiFpga_AcquireFifoWriteElementsU64 instead of NiFpga_ReadFifoU64, but it keeps returning the value-63193 (feature not supported).
Someone knows how to solve?
My program code:
NiFpga_Status status = NiFpga_Initialize();
If (!.) NiFpga_IsNotError (status))
{
< "error:="" "="">< status=""><>
Return 1;
}NiFpga_Session session;
status = NiFpga_Open (NiFpga_DAQ_Bitfile, NiFpga_DAQ_Signature,
"RIO0", NiFpga_OpenAttribute_NoRun, & session);
If (!.) NiFpga_IsNotError (status))
{
< "error:="" "="">< status=""><>
}NiFpga_Reset (session);
sampling frequency
status = NiFpga_WriteU32 (session, NiFpga_DAQ_ControlU32_SamplesPerSecond, 2048);
If (!.) NiFpga_IsNotError (status))
{
< "error:="" "="">< status=""><>
}NiFpga_StartFifo (session, NiFpga_DAQ_TargetToHostFifoU64_SamplesFIFO);
status = NiFpga_Run (session 0).
If (!.) NiFpga_IsNotError (status))
{
< "error:="" "="">< status=""><>
}uint64_t buffer [2048];
old uint64_t;
While (true)
{
size_t nSamples = 2048;status = NiFpga_ReadFifoU64 (session, NiFpga_DAQ_TargetToHostFifoU64_SamplesFIFO,)
buffer, nSamples, -1, & nSamples);
If (!.) NiFpga_IsNotError (status))
{
< "error:="" "="">< status=""><>
}
on the other
{
< nsamples;="">
{
change detection
If (buffer [i]! = old)
printf ("Sample %llx\n", buffer [i]);
old = buffer [i];
}
}}
NiFpga_MergeStatus (& status, NiFpga_Close (session 0));
/ * must be called after all other calls * /.
NiFpga_MergeStatus (& status, NiFpga_Finalize());
return 0;
Thanks for the help
Luiz Carlos
Hey luizcvm
Long story short, it is especially expected with the PCI-7811R behavior you use.
100% the CPU usage occurs because the NiFpga_ReadFifo is implemented with an expectation well filled for your target. http://digital.NI.com/public.nsf/allkb/583DDFF1829F51C1862575AA007AC792 has additional information and guidelines for creating an application to prevent the indexing of the CPU.
NiFpga_AcquireFifoWriteElements is not supported on the PCI-7811R.
I don't really have an explanation for the result of process monitoring and kworker. As I understand it, this only happens when the data are read at the exact same rate as it is generated. Is this correct?
-
"The CPU usage high" during navigation
What"the CPU usage high" and why is it when just browsing - is harmful and how to reduce it down? Thank you
Follow the steps mentioned in the articles below provide
http://www.ehow.com/about_5552689_cpu-usage-high-Vista.html
http://www.ehow.com/how_5066314_stop-100-percent-CPU-usage.html
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Recurring gel due to periodic spikes in CPU usage.
I am running Firefox v9.0.1 under Win7 Home Premium 64 bit, with a dual core T4400 from Intel (Core 2) CPU clocked at 2.2 GHz, 3 GB of RAM.
This is a new (mis) behavior for FireFox.
Problem appears as periodic, temporary freezing of the FireFox UI.
During these times (during the period up to 30 seconds), FireFox does not display a new, will not respond to mouse clicks, will not be rendering typed text. These gels can affect performance systemwide, degrade the performance of other applications, even with minimal Firefox.
Initially, I thought that it was due to the mail MS Outlook Web app... but it isn't. The same problem occurs in Firefox sessions that have ever loaded a page from Outlook webmail.I made up a few screenshots of the CPU usage and posted the result here. I post a PDF file if I know a site that would allow anonymous posters (more or less) to download a.
This page consists of images taken from the Process Explorer of Russinovich utility to show the use system resources. There is no use of I/O, which corresponds to the use of the CPU.
Firefox is without doubt the offending application.
Every 60 seconds, use Firefox picks of a CPU core, more than 90%. Use Firefox sometimes manages to spread in the second kernel as well (I don't know how he manages to do).Info from thread by thread of ProcesExplorer (at the bottom of the image) shows that this excessive use of CPU is not the case in a plugin. It is the form come Firefox, correct.
As you can see in the treeview ProcessExplorer, I run the PortableApps of FireFox installation. But I don't think this affects the excessive CPU usage. After all, it is never used to do this. And now, after upgrading to v9.0.1, it does.
In addition, a standard installation of Firefox on the same computer (8.0.1) does NOT have the behavior of excessive CPU usage.I'd appreciate any help you can offer to get the Firefox CPU usage to calm down again. I have several users who have switched to Chrome because of this bug.
Everyone wants firefox run fast and hang free with a minimum of memory and CPU usage, but the ideals tend to conflict as much as Firefox is often used with many extensions and in all probability of tabs masses, which in turn could contain heary image takes over and maybe animations and video.
Your original truncated screenshot had several containers of plugin, so little firefox was in a State of rest. You ae now mention webmail, and that conceviably would be a contributor to ramp upmemory usage and CPU spices then (CC & GC cycles) memory management.
Regarding the differences between the use of the two profiles, you have these two profiles to compare, and can provide clues.
Unfortunately troubleshooting tends to fall back on
- from firefox in safe mode and a clean profile.
- If there are problems in this situation, that there might be a fault with firefox and a bug may require deposit in order to study
- Adding rear extensions and different test sites and behavior while watching for any problem to reappear
- from firefox in safe mode and a clean profile.
-
The CPU usage reaches 100% and the system locks requiring a hard restart on Windows Vista
All of sudden the CPU usage reaches 100%, which makes the system dead slow and finally the system stops responding. I have to do a hard reboot to continue using the system.
I tried to open the Task Manager to see if there are programs or services running that can consume resources and found nothing. The remains of number of CPU use, the graph to use but less than 10 years is hovering at 100%.
I did not change my system.
The problem appears on the two accounts that I installed on my operating system.
I removed all the unwanted programs since the system was started.
I have McAfee Antivirus installed for more than a year now, and the latest antivirus patches have been installed.
Help, please.
Thank you in advance!
Hello
What antivirus/antispyware/security products do you have on the machine? Be one you have NEVER
on this machine, including those you have uninstalled (they leave leftovers behind which can cause
strange problems).----------------------------------------------------
Follow these steps:
Start - type this in the search box-> find COMMAND at the top and RIGHT CLICK – RUN AS ADMIN
Enter this at the command prompt - sfc/scannow
How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
generates in Windows Vista cbs.log
http://support.Microsoft.com/kb/928228Also run CheckDisk, so we cannot exclude as much as possible of the corruption.
How to run the check disk at startup in Vista
http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.html==========================================
After the foregoing:
How to troubleshoot a problem by performing a clean boot in Windows Vista
http://support.Microsoft.com/kb/929135
How to troubleshoot performance issues in Windows Vista
http://support.Microsoft.com/kb/950685Optimize the performance of Microsoft Windows Vista
http://support.Microsoft.com/kb/959062
To see everything that is in charge of startup - wait a few minutes with nothing to do - then right-click
Taskbar - the Task Manager process - take a look at stored by - Services - this is a quick way
reference (if you have a small box at the bottom left - show for all users, then check that).How to check and change Vista startup programs
http://www.Vistax64.com/tutorials/79612-startup-programs-enable-disable.htmlA quick check to see that load method 2 is - using MSCONFIG then put a list of
those here.
--------------------------------------------------------------------Tools that should help you:
Process Explorer - free - find out which files, key of registry and other objects processes have opened.
What DLLs they have loaded and more. This exceptionally effective utility will show you even who has
each process.
http://TechNet.Microsoft.com/en-us/Sysinternals/bb896653.aspxAutoruns - free - see what programs are configured to start automatically when you start your system
and you log in. Autoruns also shows you the full list of registry and file locations where applications can
Configure auto-start settings.
http://TechNet.Microsoft.com/en-us/sysinternals/bb963902.aspx
Process Monitor - Free - monitor the system files, registry, process, thread and DLL real-time activity.
http://TechNet.Microsoft.com/en-us/Sysinternals/bb896645.aspxThere are many excellent free tools from Sysinternals
http://TechNet.Microsoft.com/en-us/Sysinternals/default.aspx-Free - WhatsInStartUP this utility displays the list of all applications that are loaded automatically
When Windows starts. For each request, the following information is displayed: Type of startup (registry/Startup folder), Command - Line String, the product name, Version of the file, the name of the company;
Location in the registry or the file system and more. It allows you to easily disable or remove unwanted
a program that runs in your Windows startup.
http://www.NirSoft.NET/utils/what_run_in_startup.htmlThere are many excellent free tools to NirSoft
http://www.NirSoft.NET/utils/index.htmlWindow Watcher - free - do you know what is running on your computer? Maybe not. The window
Watcher says it all, reporting of any window created by running programs, if the window
is visible or not.
http://www.KarenWare.com/PowerTools/ptwinwatch.aspMany excellent free tools and an excellent newsletter at Karenware
http://www.KarenWare.com/===========================================
Vista and Windows 7 updated drivers love then here's how update the most important.
This is my generic how updates of appropriate driver:
This utility, it is easy see which versions are loaded:
-Free - DriverView utility displays the list of all device drivers currently loaded on your system.
For each driver in the list, additional useful information is displayed: load address of the driver,
Description, version, product name, company that created the driver and more.
http://www.NirSoft.NET/utils/DriverView.htmlFor drivers, visit manufacturer of emergency system and of the manufacturer of the device that are the most common.
Control Panel - device - Graphics Manager - note the brand and complete model
your video card - double - tab of the driver - write version information. Now, click on update
Driver (this can do nothing as MS is far behind the certification of drivers) - then right-click.
Uninstall - REBOOT it will refresh the driver stack.Repeat this for network - card (NIC), Wifi network, sound, mouse, and keyboard if 3rd party
with their own software and drivers and all other main drivers that you have.Now in the system manufacturer (Dell, HP, Toshiba as examples) site (in a restaurant), peripheral
Site of the manufacturer (Realtek, Intel, Nvidia, ATI, for example) and get their latest versions. (Look for
BIOS, Chipset and software updates on the site of the manufacturer of the system here.)Download - SAVE - go to where you put them - right click - RUN AD ADMIN - REBOOT after
each installation.Always check in the Device Manager - drivers tab to be sure the version you actually install
presents itself. This is because some restore drivers before the most recent is installed (sound card drivers
in particular that) so to install a driver - reboot - check that it is installed and repeat as
necessary.Repeat to the manufacturers - BTW in the DO NOT RUN THEIR SCANNER device - check
manually by model.Look at the sites of the manufacturer for drivers - and the manufacturer of the device manually.
http://pcsupport.about.com/od/driverssupport/HT/driverdlmfgr.htmHow to install a device driver in Vista Device Manager
http://www.Vistax64.com/tutorials/193584-Device-Manager-install-driver.htmlIf you update the drivers manually, then it's a good idea to disable the facilities of driver under Windows
Updates, that leaves about Windows updates but it will not install the drivers that will be generally
older and cause problems. If updates offers a new driver and then HIDE it (right click on it), then
get new manually if you wish.How to disable automatic driver Installation in Windows Vista - drivers
http://www.AddictiveTips.com/Windows-Tips/how-to-disable-automatic-driver-installation-in-Windows-Vista/
http://TechNet.Microsoft.com/en-us/library/cc730606 (WS.10) .aspxHope these helps.
Rob Brown - MS MVP - Windows Desktop Experience: Bike - Mark Twain said it right.
-
Older games causes rundll32.exe to open and 100% CPU usage
Gameux.dll, Rundll32.exe, the CPU usage and no internet! : D what a pleasure!
From some (mostly older) games rundll32.exe causes opening with Gameux.dll and is 100% of the CPU usage. I know that it's because she's trying to connect to internet, I did not. What is my alternative to make my games work again! I want to delete game explore all together, but Microsoft didn't really care to add such an option. If I can't find out tomorrow night, I'm going to start in a 2nd OS and delete the dll, and if Win7 stops working, I will be switching back to Windows XP.
All the solutions!
I thought it was a pretty well known problem that the Games Explorer does not work in offline mode? He opened Rundll32.exe to run Gameux.dll and idling with 100% use of a nucleus. I think that this problem has been around since the beginning of Windows Vista (or at least since the dawn of Windows 7, not tried this problem under vista).
WHAT, for anyone reading this in the future (Google or otherwise), I found a Solution. (Not a pretty, I take no responsibility, but it worked twice for me).
I went into the registry (Regedit.exe)
CTRL + F (find)
Looking for the GameUX,
and whenever she finds one, I deleted it. excluding results within areas such as "{xxxx-xxxx-xxxx-xxxx-xxxx}", no need to remove those. but all other entries GameUX, including directories (not sure of the term suitable for registry entries)Anyway, long story short, I fixed it by removing each entry in registry GameUX that I could find. all games work now, even offline! : D
-
Why my always 100% CPU usage and what is RegSvcs.exe uses 50% of it?
Hi people,
I think I need urgent help though.
Recently, I thought I downloaded malware that is injected with the Trojan horse. And now, I believe that the Trojan horse lies in my computer. I did this because my CPU usage is always at 100% even when I just restarted my com. Initially, I found there was a program called dgen.exe running in my computer to a 60% of CPU usage. Never so, I remove the dgen.exe from my computer but I don't know if I remove it entirely. Now, I'll have another program called RegSvcs.exe in my computer operating at 50 percent CPU usage. I googled out and it says it may or may not be required by windows and it could be a trojan virus as well. That's why there at - it anyone who can enlighten me on this?
I have to delete or to update or something?
Thank you.
Kind regards.
PHMEC
By far, this is related to the Malwarebytes with steam being far behind. Your Cpu & your HD and combination of slow down the computer.
I would remove MBAM at least to test
-
Recently, I reformatted the drive, reinstalled Windows and have no personal data on this subject. The only application there is office, which I am not, using McAffee and my browser:-I use it mainly for web browsing.
It seems to happen mostly when I was using the browser, then left the machine for a few hours, then come back and tried to use it again. I turned off the screen saver and specify power options to keep permannently because she seems to be that the question was restartinjg rest. When the CPU usage is at its peak, and I try to return to the browser (or whatever it is) it may take some minutes to answer - just to load the Control Panel, for example.
I can see from the Manager tasks, which is currently running, but ideas on how to identify the process that all take this resource, I can stop safely and therefore to save resources?
Processes are:-
CSRSS
DWM
Explorer
mcagent
MSASCui
rundl32
Sidebar
taskeng
Taskmgr
WinlogonAlso a lot of services - too many to list!
All the processes you list, apart from mcagent, which is McAfee, are essential components of Windows. If you finish one of them outside the sidebar of your computer stops working to a greater or lesser degree. You could try gadgets on sidebar of closing in case one of them is wrong to behave.
Another thing that can cause the CPU to boost with no application running is Windows Update and probably analysis and updates from McAfee.
Don't you have the CPU column shows in the Task Manager, so that you can see which process is using most of the CPU? What processor is it? What is a heart?
A better tool than the Manager of the tasks for these circumstances is Process Explorer.
http://TechNet.Microsoft.com/en-us/Sysinternals/bb896653
Process Explorer is a chart of the CPU where you can put the mouse on a cob and it will tell you what process is using most of the CPU.
There is an introduction to Process Explorer here.
http://Channel9.msdn.com/events/TechEd/NorthAmerica/2010/WCL314
As for the memory of 25%, 25% of what? Computer laptop 2 GB I write this on shows 42% of physical memory used with any running application. It's Windows. It's big enough.
In your situation, one thing I would try would be to uninstall McAfee (run the removal tool then http://service.mcafee.com/FAQDocument.aspx?id=TS100507) and install Microsoft Security Essentials.
-
Kvaleyo.exe/Google Chrome Trojan/Virus...? 100% of the CPU and RAM usage
Honestly, I don't know what it is... But after five minutes of my PC is on this program opens in the Manager of tasks called Kvaleyo. It keeps only opening of more bodies Besides this one. It gets to the point where it uses 100% of my CPU and RAM... I tried to remove the location... I have to close all instances that keep reopening anyway... I have so VERY quickly shut them down and hope THAT I got them all and delete... But the problem is... Every time I restart the PC files come back and the problem returns... It's a huge pain because I can't do anything at all.
In any case... Any help would be appreciated.
Hello
See if this helps you:
Download, install, update and scan your system with the free version of Malwarebytes AntiMalware and if necessary do in Mode safe mode with networking:
http://www.Malwarebytes.org/products/malwarebytes_free
'Advanced options boot (including safe mode).
_______________________________________
And also scan with the free version of SUPERAntiSpyware
http://www.SUPERAntiSpyware.com/download.html
SUPERAntiSpyware Free Edition is 100% free and will detect and remove thousands of Spyware, Adware, Malware, Trojans, KeyLoggers, Dialers, Hi-Jackers, and worms. SUPERAntiSpyware features many unique and powerful technologies and removes spyware threats that other applications fail to remove.
SUPERAntiSpyware Free Edition does not include blocking in real time or scheduled scan.
______________________________________
THS is a very good program to scan your system to remove adware, etc.:
http://www.bleepingcomputer.com/download/adwcleaner/
AdwCleaner is a program that finds and removes the Adware, toolbars, potentially unwanted programs (PUP) and browser hijackers from your computer. Using AdwCleaner you can easily more of these types of programs for a better user experience on your computer delete and while browsing the web.
_____________________________________
And just to be sure, nothing is lurking in the background:
'TDSSKiller Rootkit Removal Utility download for free'
http://USA.Kaspersky.com/downloads/TDSSKiller
See you soon
-
I asked S/W AirFASE control of flight data on Windows 2008 Server (HP Proliant ML350 server machine). When I run the Replay, its running slow flight, if I keep running Flt. Replay system will hang. Even with MS Excel & Word response in the process is to slow down. When I check the system via the Task Manager, process name "the system idle process' CPU usage is high (like 60%). Please notify.
Hello Salim,
The question you posted would be better suited in the TechNet Forums. I would recommend posting your query in the link below.
http://social.technet.Microsoft.com/forums/en-us/winservergen/threads/
Hope this information helps.
-
Just like in the title,
I tried everything, disabling components, elimination of most of my RAM, update BIOS and loading failsafe and optimized defaults, etc. - and one thing I noticed is that Prime95 running x 64 on all hearts eliminates the peaks high in 1.2.0 DPC latency checker. Audio stuttering, what original research for corrections me, brought me to DPC latency checker.
It's really strange that the 100% CPU usage would cause the DPC latency stabilize (mine hovers around 350-450 microseconds in the full use of the CPU, but in use slowed parameters or moderate apparently something causes a DPC peak at ~ 4100us max).
Let me know if you figured it out!
Model name : GA-EP45-UD3P(rev. 1.6)
--------------------------
M/B Rev : 1.6
BIOS Ver : FE
Purchase garage : Newegg.com
-------------------------------------------------------------------------------
Brand VGA : ATI model : 5770
Brand CPU : Intel model : Quad 9400 speed : 2.66
Operating system : Win 7 64 bit SP :
Brand memory : G.SKILL Type : DDRII
Memory size : 4 GB, speed : 800
Power supply : Antec Neopower 550 WHi Frankie,
We understand that you too met the same scenario as this 6 year old thread. Some resolutions are always topical, while others are no longer applicable due to constant updates and corrections in the course of the last years.
However, to resolve your concern, you can view article utilization of the processor for Windows 7 .
Let us know how it goes.
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