B19, performance using fopen()/fclose() on FAT16

Will Mooar willm@ihug.co.nz
Sat Dec 26 02:14:00 GMT 1998


Just a thought - do you have any form of virus checker on your system?  If
so, try disabling it before running the tests.

I found that NAV _severely_ impacted performance when compiling.

Kind regards - Will.
_______________________________
Will Mooar
System Analyst
willm@ihug.co.nz

----- Original Message -----
From: Mumit Khan <khan@xraylith.wisc.edu>
To: John Blanton <john.blanton@aud.alcatel.com>
Cc: <gnu-win32@cygnus.com>
Sent: Friday, 25 December 1998 09:18
Subject: Re: B19, performance using fopen()/fclose() on FAT16


>John Blanton <john.blanton@aud.alcatel.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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