Earlier start of threads did not help. I'm thinking about to rewrite the script without threads, but I'm afraid it wont help much. To speed up the start by factor 4 would really solve the problem. But to make the whole perl from source for static linking is probably on a raspberry pi a never ending story. I'll give a try. Thank you for the hint.

In reply to Re^4: Slow startup on raspberry pi by vivat
in thread Slow startup on raspberry pi by vivat

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