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Message-ID: <3F7D731C.1020304@lapo.it>
Date: Fri, 03 Oct 2003 15:01:16 +0200
From: Lapo Luchini <lapo AT lapo DOT it>
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To: Mailing List: CygWin <cygwin AT cygwin DOT com>
Subject: invocation "slowness"?
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Hi.

Yes, I've read http://cygwin.com/faq/faq_4.html#SEC33
No, I have no network share in path 0=)

I'm writing this message because it *seems* to be that this issue is not 
very old, but I couln't say if this is exact, expected, or always was.

$ cat do-something.sh
#!/bin/bash
for ((i=0; i<10; i++)); do echo -n $i; done; echo

On CygWin:
$ time for ((i=0; i<10; i++)); do echo -n $i; done; echo
0123456789
real    0m0.001s
user    0m0.000s
sys     0m0.000s
$ time ./do-something.sh
0123456789
real    0m0.686s
user    0m0.062s
sys     0m0.015s

While, e.g. on FreeBSD:
$ time for ((i=0; i<10; i++)); do echo -n $i; done; echo
0123456789
real    0m0.000s
user    0m0.000s
sys     0m0.000s
$ time ./do-something.sh
0123456789
real    0m0.004s
user    0m0.001s
sys     0m0.002s

OK, I know that Windows doesn't have pipes and cygwin, in emulating 
them, *cannot be* as fast, BUT I don't remember CygWin taking almost 1 
second to spawn, in the past.

But, I repeat, maybe I only forgot the past... but it really didn't seem 
to take "5 minutes" to complete a typical cofngiure script (which 
involves LOTS of spawning.)

Is is not, btw, the "priority" sisue that it was some time ago, as the 
700ms time is the same either the CPU being 0% or 100% (with idle tasks).

Seems really strange to me... ?_?

Even a single "echo" takes up to 500ms:
$ time /bin/echo 1
1
real    0m0.442s
user    0m0.030s
sys     0m0.030s

-- 
Lapo 'Raist' Luchini
lapo AT lapo DOT it (PGP & X.509 keys available)
http://www.lapo.it (ICQ UIN: 529796)



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