Setup guide
For example, to test read performances for 10-bit HD on the partition7:
./sw_io_perf_tool -p 7 -v HDTV -d 10
You may also use sw_io_perf_tool with custom resolutions. For example,
to test read performances for frames with a width of 1600 pixels and a
height of 900 pixels:
./sw_io_perf_tool -p7 -v 1600,900
The command displays the throughput (in MB/sec) and maximum IO
latency detected (in ms), as shown below:
Running Stone+Wire IO Performance Test (Partition 7)
Video: 1 stream(s) of HDTV @ 10bit
Proxy: None
Audio: None
This test will take approximately 11 seconds
*** Read Test ***
Bandwidth: 275.456 MB/s
Frame Rate: 39.351 Frames/s
Max Latency: 335.284 ms
Notes:
■ The command can be run while other operations are ongoing to simulate
how the application will behave under these conditions.
■ The media used by sw_io_perf_tool is allocated and freed automatically.
■ sw_io_perf_tool will not reserve any bandwidth on the storage device.
■ Partitions/Volumes must be properly configured in the Stone and Wire
configuration file.
214 | Chapter 6 Advanced Configuration and Troubleshooting