PCI-6528 Benchmarks with NI-DAQmx

Updated May 14, 2018

Reported In

Hardware

  • PCI-6528
  • PXI-6528

Driver

  • NI-DAQmx

Other

NI-6528

Issue Details

The NI 6528 is a software timed device. However, are there any benchmarks for this board ?
 

Solution

The data transfer rates of the NI 6528 are software timed, also called unstrobed or nonlatched, and do not require status and control signals so the transfer speed are completely software/computer dependent. These rates may vary due to programming language and code efficiency, CPU utilization, transfer methods, and so on.

Below are the results of benchmark testing for the PCI-6528 based on 10,000 updates. All tests were executed without software delays or data verification; generated values were toggled each iteration.
 
Computer Specifications
 Computer 1Computer 2
Operating SystemWindows XP Professional
Service Pack 2
Window XP Professional
Service Pack 2
ModelDELL OptiPlex GX280DELL OptiPlex GX150
Processor Speed3.2 GHz1 GHz
RAM1 GB256 MB
Bus ChipsetIntel 915G Express Chipset
800 MHz Front Side Bus
Intel 815E Chipset
133 MHz Front Side Bus
HD Access RateATA 100
7200 RPM
ATA 100
7200 RPM
LabVIEW Version8.0 Released8.0 Released

Acquire 1 Channel
MeasurementResults Computer 1Results Computer 2
Total Time Elapsed97.3 ms184.8 ms
Average Update Rate102782 Hz54146 Hz
Average Update Interval9.70 µs18.5 µs
 
Acquire 1 Port (8 Channels)
MeasurementResults Computer 1Results Computer 2
Total Time Elapsed108.6 ms210.0 ms
Average Update Rate92085 Hz47633 Hz
Average Update Interval10.9 µs21.0 µs
 
Acquire All Channels (24 Channels)
MeasurementResults Computer 1Results Computer 2
Total Time Elapsed157.2 ms271.2 ms
Average Update Rate63625 Hz36881 Hz
Average Update Interval15.7 µs27.1 µs
 
Update 1 Channel
MeasurementResults Computer 1Results Computer 2
Total Time Elapsed100.3 ms211.4 ms
Average Update Rate105389 Hz48941 Hz
Average Update Interval10.0 µs21.1 µs
 
Update 1 Port (8 Channels)
MeasurementResults Computer 1Results Computer 2
Total Time Elapsed85.8 ms182.4 ms
Average Update Rate116556 Hz54860 Hz
Average Update Interval8.60 µs18.2 µs
 
Update All Channels (24 Channels)
MeasurementResults Computer 1Results Computer 2
Total Time Elapsed115.5 ms245.3 ms
Average Update Rate86599 Hz40771 Hz
Average Update Interval11.6 µs24.5 µs



 

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