From: khan AT xraylith DOT wisc DOT edu (Mumit Khan)
Subject: Re: B19, performance using fopen()/fclose() on FAT16
24 Dec 1998 14:46:05 -0800
Message-ID: <199812242018.OAA23931.cygnus.gnu-win32@modi.xraylith.wisc.edu>
References: <3680FDDC DOT 5923BA32 AT aud DOT alcatel DOT com>
To: John Blanton <john DOT blanton AT aud DOT alcatel DOT com>
Cc: gnu-win32 AT cygnus DOT com

John Blanton <john DOT blanton AT aud DOT alcatel DOT com> writes:
> Conducting performance tests of several porting tools we noticed
> dramatically poor performance for the following case using FAT16 on
> Windows NT:

Thanks for the testcase and the timing results. Very interesting. I
would expect a significant slowdown using Cygwin, but didn't expect
this bad.

Here's what I get on Ppro 200, 128MB, NT SP3/FAT, no CYGWIN env var,
all binary mounts:

Cygwin B20:
    real    1m39.00s
    user    0m29.00s
    sys     1m4.00s

Specifying CYGWIN=nontea drops the time a few seconds.

MSVC
    real    0m15.00s
    user    0m3.00s
    sys     0m10.00s

UWIN
    real    0m53.00s
    user    0m17.00s
    sys     0m36.00s

> GNU-Win32           398.3
> Linux (FAT)                6.2
> Linux (Linux FS)          6.1
> U/WIN                      41.0
> Win32                       14.8

Your Cygwin time is much higher than mine for some reason.

Regards,
Mumit

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