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Pokazywanie postów oznaczonych etykietą Pipe. Pokaż wszystkie posty
Pokazywanie postów oznaczonych etykietą Pipe. Pokaż wszystkie posty

wtorek, 19 lutego 2013

clogged pipe

What if? Say you want to execute something in a python sub-process and you want to read and resend all output data, no matter how big they are?

The simplest solution to use pipe is BAD idea - pipe has it's own buffer and what's worse size of this buffer is constant and cannot be changed by using some smart fnctl call any more. Let's run a simple test:



On my laptop I'm not able to send more than 64kB at a time, moreover its completely hanging:



Hmmm... So how can you send more than that? Let's say this way:



Use a simple manager, man! More info here.

There is also possibility  to use shared memory objects (read this), but those are rather for storing not so huge amount of data.

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