Benchmarking Data for Simultaneous Data Acquisition Systems

Overview

Benchmarking data is very useful when deciding what type of components are needed to meet system requirements. For more complex systems, they may help decide what type of system architecture should be implemented depending on the current and future requirements of the application. This document contains benchmarks of some typical dynamic signal acquisition applications.

Contents

PXI-6143 

For details on the PXI-6143, refer to the PXI-6143 product page.

Streaming to Disk
This test evaluates how fast a controller can continuously save data to a file.

PXI-8350
Channels
Max fs
80
250k
88
215k
104
200k
120
180k
136
158k


Test Details:

  • Software: LabVIEW 7.1, NI-DAQmx 7.3
  • No data display occurred
  • Data saved in binary
  • Each test ran for a minimum of 1 minute, test at max fs ran for 5 minutes
  • Block size = 2048, buffer size = 1024000

PXI-6133

For details on the PXI-6133, refer to the PXI-6133 product page.
Streaming to Disk
This test evaluates how fast a controller can continuously save data to a file.

PXI-8350
PXI-8351
Channels
Max fs
Max fs
12
2.5M
2.5M
16
1.8M
2.5M
24
1.15M
1.53M


Test Details:

  • Software: LabVIEW 8.0, NI-DAQmx 8.0
  • No data display occurred
  • Data saved in binary
  • Each test ran for a minimum of 3 minute, test at max fs ran for 5 minutes
  • Block size = 16384, buffer size = 5M
  • PXI-8351 was configured with 2x160GB RAID-0 and MXI-Express

PXI-6123

For details on the PXI-6123, refer to the PXI-6123 product page.
Streaming to Disk
This test evaluates how fast a controller can continuously save data to a file.

PXI-8350
Channels
Max fs
48
500k
56
452k
64
370k
80
297k
88
273k
104
214k


Test Details:

  • Software: LabVIEW 7.1, NI-DAQmx 7.3
  • No data display occurred
  • Data saved in binary
  • Each test ran for a minimum of 1 minute, test at max fs ran for 5 minutes
  • Block size = 8192, buffer size = 1024000

PXI-6115

For details on the PXI-6115, refer to the PXI-6115 product page.
Streaming to Disk
This test evaluates how fast a controller can continuously save data to a file.

PXI-8351
Channels
Max fs
4
10M
6
6.67M
8
5M


Test Details:

  • Software: LabVIEW 8.0, NI-DAQmx 8.0
  • No data display occurred
  • Data saved in binary
  • Each test ran for a minimum of 1 minute, test at max fs ran for 5 minutes
  • Block size = 16384 -> 32678, buffer size = 5M
  • PXI-8351 was configured with 2x160GB RAID-0 and MXI-Express