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发表于 2013-12-11 17:35:27
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BIO关掉了CPU变频又测了一遍。。
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CPU SPEED
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Reported CPU speed: 2093.0 MHz
Measured CPU speed: 1380.0 MHz (approx.)
Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.
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MEASURED INTERRUPT TO USER PROCESS LATENCIES
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The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.
Highest measured interrupt to process latency (μs): 32.287369
Average measured interrupt to process latency (μs): 3.286541
Highest measured interrupt to DPC latency (μs): 30.330559
Average measured interrupt to DPC latency (μs): 0.950583
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REPORTED ISRs
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Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.
Highest ISR routine execution time (μs): 14.465361
Driver with highest ISR routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation
Highest reported total ISR routine time (%): 0.013804
Driver with highest ISR total time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation
Total time spent in ISRs (%) 0.013848
ISR count (execution time <250 μs): 2357
ISR count (execution time 250-500 μs): 0
ISR count (execution time 500-999 μs): 0
ISR count (execution time 1000-1999 μs): 0
ISR count (execution time 2000-3999 μs): 0
ISR count (execution time >=4000 μs): 0
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REPORTED DPCs
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DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.
Highest DPC routine execution time (μs): 30.197802
Driver with highest DPC routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation
Highest reported total DPC routine time (%): 0.006517
Driver with highest DPC total execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation
Total time spent in DPCs (%) 0.021341
DPC count (execution time <250 μs): 17696
DPC count (execution time 250-500 μs): 0
DPC count (execution time 500-999 μs): 0
DPC count (execution time 1000-1999 μs): 0
DPC count (execution time 2000-3999 μs): 0
DPC count (execution time >=4000 μs): 0
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REPORTED HARD PAGEFAULTS
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Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution.
NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are likely to interrupt the audio stream resulting in dropouts, clicks and pops. Check the Processes tab to see which programs were hit.
Process with highest pagefault count: dgservice.exe
Total number of hard pagefaults 323
Hard pagefault count of hardest hit process: 253
Highest hard pagefault resolution time (μs): 18310.678930
Total time spent in hard pagefaults (%): 0.117899
Number of processes hit: 8
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 0.064762
CPU 0 ISR highest execution time (μs): 14.465361
CPU 0 ISR total execution time (s): 0.018332
CPU 0 ISR count: 2357
CPU 0 DPC highest execution time (μs): 30.197802
CPU 0 DPC total execution time (s): 0.023576
CPU 0 DPC count: 15253
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CPU 1 Interrupt cycle time (s): 0.008462
CPU 1 ISR highest execution time (μs): 0.0
CPU 1 ISR total execution time (s): 0.0
CPU 1 ISR count: 0
CPU 1 DPC highest execution time (μs): 6.402293
CPU 1 DPC total execution time (s): 0.000237
CPU 1 DPC count: 127
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CPU 2 Interrupt cycle time (s): 0.016151
CPU 2 ISR highest execution time (μs): 0.0
CPU 2 ISR total execution time (s): 0.0
CPU 2 ISR count: 0
CPU 2 DPC highest execution time (μs): 9.225036
CPU 2 DPC total execution time (s): 0.003194
CPU 2 DPC count: 1760
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CPU 3 Interrupt cycle time (s): 0.014330
CPU 3 ISR highest execution time (μs): 0.0
CPU 3 ISR total execution time (s): 0.0
CPU 3 ISR count: 0
CPU 3 DPC highest execution time (μs): 7.237458
CPU 3 DPC total execution time (s): 0.001242
CPU 3 DPC count: 556
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