Determining Linux Video Driver Refresh Rates

I found this cool command called glxgears that you can run under X.

$ glxgears
10524 frames in 5.0 seconds = 2104.650 FPS
10003 frames in 5.0 seconds = 2000.501 FPS
8417 frames in 5.0 seconds = 1683.340 FPS    * Moved the window from left to right
10538 frames in 5.0 seconds = 2107.443 FPS
5639 frames in 5.0 seconds = 1120.850 FPS   * Moved the window around constantly
X connection to :0.0 broken (explicit kill or server shutdown).
$ glxgears --help
Warrning: unknown parameter: --help

Note the spelling error in “Warrning”.

Tagged with: General Linux

Related Posts

Improving container security in your CI/CD pipeline

At PyCon AU 2026 , the presentation Your Python container is 90% stuff you didn’t ask for by Scott Norris at Chainguard really exposed the impact of being lazy in container management for security purposes.

Read more

My take on PyCon Australia 2026

PyCon AU 2026 held in Brisbane this week was a five day event for the Python community. With specialized tracks and dedicated tutorial and engineering days there was a wide variety of content available.

Read more

Fixing Old Software Bugs Without Thinking

I previously came across an issue in my benchmarking work where I relied on the Latency Histogram section of sysbench output. On Linux it worked fine — I generally ran my workload there, so it never mattered.

Read more