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Harald Welte laforge at osmocom.orgOn Sat, Sep 26, 2020 at 07:50:14PM +0200, Harald Welte wrote:
> One idea would be to play with setvbuf(3) to increase stderr buffering
> inside libc.
I just tried; at least for gnome-terminal it did not at all change the
results, even if a 1MByte buffer was used in setvbuf(). I thoght this could
be related to our use of fflush() in stderr logging. But even when removing
the fflush() I could still see those 64..128ms stalls when running the test
program via gnome-terminal. Not sure what's going on, but definitely we
can stop looking at setvbuf() as a solution.
--
- Harald Welte <laforge at osmocom.org> http://laforge.gnumonks.org/
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