Re: Poor IFS performance? (The answer / not a rant)

["Peter Dow" <pcdow@xxxxxxxxx>]

Thanks Patrick. For awhile there I was beginning to think the PC version
using the mapped drive was as fast as using the local drive! That really is
terrible performance. How about mapping to a shared folder (DLO)? Probably
even worse. I remember asking someone at COMMON some years ago why shared
folder performance was so terrible and I seem to recall the answer was
mainly security -- checking for authorities apparently had pretty horrendous
overhead. Could checking authorities really be that bad though!? Especially
on a dedicated machine that presumably has so much more horsepower that if
it were a tractor pull...


----- Original Message -----
From: Patrick Townsend <townsend@patownsend.com>
To: <MIDRANGE-L@midrange.com>
Sent: Wednesday, March 01, 2000 4:17 PM
Subject: Re: Poor IFS performance? (The answer / not a rant)


> Peter,
>
> Here are the timings:
>
>    PC version (local hard drive):       25 seconds
>    PC version (mapped IFS drive):       4 minutes 8 seconds
>    AS/400 version (IFS drive):          4 minutes 14 seconds
>
> Patrick
>
> Peter Dow wrote:
> >
> > A few seconds faster than which one? The PC version running against a
local
> > drive or the AS/400 version?
> >
> > ----- Original Message -----
> > From: Patrick Townsend <townsend@patownsend.com>
> > To: <MIDRANGE-L@midrange.com>
> > Sent: Wednesday, March 01, 2000 9:04 AM
> > Subject: Re: Poor IFS performance? (The answer / not a rant)
> >
> > >
> > > The PC version running with the mapped drive was a few seconds faster.
> > > Go figure...
> > >
> > > Patrick
> > >
> > > Peter Dow wrote:
> > > >
> > > > Hi Patrick,
> > > >
> > > > You mentioned in your original post that you also ran the PC version
> > using a
> > > > mapped drive. What was the timing on that?
> > > >
> > > > Peter Dow
> > > > Dow Software Services, Inc.
> > > > 909 425-0194 voice
> > > > 909 425-0196 fax
> > > >
> > > > From: Patrick Townsend <townsend@patownsend.com>
> > > > > The data is in ASCII in an IFS file system and I'm running an ILE
C
> > > > > application against it. The application takes 4 minutes 14 seconds
to
> > > > > execute on a dedicated RISC AS/400 (model 150, but same results on
> > > > > larger systems). The very same application compiled on a 200 mhz
Dell
> > NT
> > > > > running against the same file on the local hard drive takes 25
seconds
> > > > > to execute.
> > > >
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