Mail Archives: cygwin-developers/2001/01/15/13:33:30
Christopher Faylor wrote:
>
> On Mon, Jan 15, 2001 at 12:14:58PM -0500, Earnie Boyd wrote:
> >I just wanted to praise you for speeding up Cygwin. It's at least 15
> >percent faster or more. In my timing tests I currently get a faster
> >initial output from `ls --color -l /bin' than I do in repeating the
> >command. I once had an initial timing of .65 seconds user time on an
> >initial display; this was after having exited Cygwin processes, did some
> >Netscape work, read some email and then restarted a Cygwin process.
>
> Wow, thanks. Where is cygwin faster? Is this a recent change is the
> snapshot faster than 1.1.7? Or is 1.1.7 faster than 1.1.4? I did
> add some code to read to bypass signal interruption if there were
> no signal handlers present which should have some speed improvements
> but that was added in 1.1.6.
>
I'm noticing the improvement in the current CVS as compared to 1.1.7.
> I also just implemented SA_RESTART but I don't that would have an effect
> on anything since it requires a reconfiguration and recompilation.
>
A recompilation and reconfiguration of what, Cygwin? I do that with
make clean && make
so if that is what you mean that is what I'm testing.
> DJ also did some performance analysis and targetted some areas that
> needed tweaking. This should have shown up in 1.1.6. I was never
> certain that there was a clear improvement, though, or I would have
> announced this as a 1.1.6 change.
>
Well then, it wasn't that. Perhaps some of Corinna's mmap changes have
something to do with it and the thanks belongs to her. I was just
assuming that your change to the read function was what the cause and
affect was but maybe it's elsewhere. However, the change is definitely
noticeable.
Cheers,
Earnie.
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