> parallel: Warning: Finding the maximal command line length. This may take up to 1 minute.

> So I wait a few seconds [snip]

This warning is only ever printed if running in Cygwin, not Linux or macOS or elsewhere. Cygwin is notoriously slow.

    # This is slow on Cygwin, so give Cygwin users a warning
    if($^O eq "cygwin" or $^O eq "msys") {
    ::warning("Finding the maximal command line length. ".
          "This may take up to 1 minute.")
    }

Also note that it only figures this out first time, after which it’s cached on disk.

▲ dataflow 8 hours ago | parent [-]

This is on MSYS2, yes, and that excuses absolutely nothing, because this shouldn't be happening in the first place for speed to be even relevant. At the risk of repeating myself thrice: the messages are confusing, the Ctrl+C handling is just utterly broken, the citation message adds to the confusion while being frankly obnoxious, and all of the delays and outputs are unnecessary in the first place as proven by literally every other program that doesn't make me wait a minute before I can use it the first time, including xargs. If Microsoft's own Windows tools did this, everybody would bash them (no pun intended) till the end of time. But since it's GNU Parallel and not Microsoft Parallel, it's Windows's fault for being slow and also my fault for having the audacity to expect better, apparently.

	▲	MrDOS 4 hours ago \| parent [-]
		> the messages are confusing > while being frankly obnoxious Try reading some time. It's pretty great. > the Ctrl+C handling is just utterly broken That's your terminal, not parallel. > and all of the delays Your terminal is adding the delay, not parallel. parallel is just warning you about your broken terminal. You're shooting the messenger here.