Change select(2) to kevent(2) on script(1)...
sobomax at FreeBSD.org
Mon Dec 22 20:58:14 UTC 2008
Norikatsu Shigemura wrote:
> Hi sobomax!
> On Mon, 22 Dec 2008 03:03:42 -0800
> Maxim Sobolev <sobomax at freebsd.org> wrote:
>> Roman Divacky wrote:
>>> I believe other OSes should be able to do the porting effort when they
>>> want to use FreeBSD software.
>>> if kqueue-in-script makes any improvement go for it.
>> I really doubt there would be any. It's just 2 descriptors, and if
>> select(2) can't handle 2 descriptors efficiently them perhaps it is
>> broken and has to be fixed instead.
> I think that performance improvement is significant(I don't
> think performance improved by my patch). But my patch is the
And can you explain where that "significant improvement" comes from? Are
you saying that tty layer / pseudo-terminal driver is somehow much more
efficient with kqeue(2) compared to select(2)/poll(2)? There is
something broken about it if so.
In any case without any numbers this discussion is pretty much pointless.
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