Blackmagic Speed Test Terminal Arguments

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  • Joined: Thu May 29, 2014 2:14 pm

Blackmagic Speed Test Terminal Arguments

PostFri Jan 20, 2017 5:57 pm


I was curious if anyone had any experience with running Blackmagic Speed Test via the command line? I have a number of computers I would like to run Blackmagic Speed Test on, but need to set the Target Drive and the Stress Size on each machine, and have been finding it time consuming to launch the software on each computer and adjust accordingly.

I do see there are some command line arguments for Blackmagic Speed Test, per running
Code: Select all
/Applications/Blackmagic Disk Speed -h
, but have been unsuccessful in figuring out the correct syntax to set the target drive and the stress size.

My attempts to set the target size have resulted in me trying
Code: Select all
/Applications/Blackmagic Disk Speed -d /Users/Shared/SpeedTest/
, but regardless of my folder, including opening it with
Code: Select all
chmod -R 777 /Users/Shared/SpeedTest
(the folder exists on all computers), it's reported that the folder is read/only and cannot be used.

Does anyone have any experience using the command line for running Speed Test?



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  • Joined: Wed Mar 08, 2017 5:59 pm

Re: Blackmagic Speed Test Terminal Arguments

PostWed Aug 21, 2019 1:10 pm

Any updates on this? Would be great to point to a customized location


  • Posts: 48
  • Joined: Tue Jun 25, 2019 2:33 am
  • Real Name: Petter Flink

Re: Blackmagic Speed Test Terminal Arguments

PostFri Aug 23, 2019 11:09 am

I've not found an argument to address which volume to test.
But it appears as if there are no such argument via cl.

-h, --help Displays this help.
-c, --cmd Control via command-line options, not GUI.
-o, --outfile <file> Print result output to <file> (default: stdout).
-s, --size <size> Stress test of <size> GBs (default: 1).
-n, --iterations <N> <N> iterations (default: 1).
Grew up with a Nikon FM - Evolving with a BMMCC

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