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RE: Cygwin is SLOW
- From: "BiDuS" <bidus at free dot fr>
- To: <cygwin at cygwin dot com>
- Date: Tue, 16 Jul 2002 18:03:09 +0200
- Subject: RE: Cygwin is SLOW
I've tried both slow and fast perl scripts on my machine (AMD XP1700, W2K)
If test.file is on a local directory
$ perl slowchm.pl
113.4 chmods per sec
$ perl fastchm.pl
2923.6 chmods per sec
if test.file is on a mounted directory
$ perl slowchm.pl
51.9 chmods per sec
$ perl fastchm.pl
143 chmods per sec
Could anyone explain the performance ratio for both scripts ???
btw, on a "slow" linux p3-866
test.file being on a remote directory
$ perl slowchm.pl
187.8 chmods per sec
$ perl fastchm.pl
3096.8 chmods per sec
test.file being on a local directory
$ perl slowchm.pl
181.7 chmods per sec
$ perl fastchm.pl
263232.5 chmods per sec (arf!)
I got a wider gap for small c program opening and closing about 650 files
It takes 0.750 s for local files and about 2 s for distant files
On the linux machine, it's just 0.1 s for distant files...
Is the _open() routine guilty ?
Is it linked to the unix AND dos path compatibility ?
Anyone as a hint to speed this up ?
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