Bug #15269: Process.setproctitle has odd behaviour on Mac OS X

• Status: Third Party's Issue
• Assignee: -
• Target version: -
• ruby -v: 2.5.1p57
• Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN

[ioquatix (Samuel Williams)]

On Mac OS X, using Process.setproctitle does seem to update when inspecting the process using ps but doesn't seem to update the process title in htop.

I don't know why.

Here is my test script.

#!/usr/bin/env ruby

Process.setproctitle "Preparing for sleep..."

10.times do |i|
	puts "Counting sheep #{i}"
	Process.setproctitle "Counting sheep #{i}"
	
	sleep 10
end

puts "Zzzzzzz"

If I restart htop it updates.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Third Party's Issue

It isn't ruby specific.
Seems like an issue of htop, it just does not update the info.

[ioquatix (Samuel Williams)]

I will test on another language, e.g. Python and see if it works or not.