Re: [dev] [st] Removing timeouts in main loop

From: Christoph Lohmann <20h_AT_r-36.net>
Date: Sun, 16 Sep 2012 14:00:44 +0200

Hello.

On Sun, 16 Sep 2012 14:00:44 +0200 Aurélien Aptel <aurelien.aptel_AT_gmail.com> wrote:
> On Sun, Sep 16, 2012 at 12:26 PM, Christoph Lohmann <20h_AT_r-36.net> wrote:
> > If there is something to read from the tty, handle it, then wait for
> > five microseconds in select() and see if the buffer filled again. If
> > yes, handle this and do it again. After a certain amount of such loops
> > (1000) break and redraw the terminal. This arbitary break is there be‐
> > cause without it the user would see a stuttering in the output and it
> > seems to go wrong. This loop number is related to my development machine
> > and a better solution to calculate or replace it with a more natural
> > value would be more fitting solution.
>
> I'm not really sure it's simpler then. I will look into it tonight.
>
> > In the benchmark you proposed (count=500) I could reproduce the same
> > times as urxvt with the above changes.
>
> I've made a mistake in the command, you should use /dev/urandom
> instead of /dev/random because the latter can block on read, see $ man
> 4 random.

Yes, thanks. I forgot to mention that I changed it to /dev/urandom when
doing the comparison. Thinkpads don’t have the magic entropy device yet.
:(


Sincerely,

Christoph
Received on Sun Sep 16 2012 - 14:00:44 CEST

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