Re: 5.2 Performer on Irix 4.0.5

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Michael Jones (mtj++at++babar)
Wed, 22 Feb 1995 21:39:04 -0800

On Feb 22, 6:30pm, Jim Helman wrote:
> Subject: Re: 5.2 Performer on Irix 4.0.5
:nat writes:
:
:> pfInit: mmap failed for /dev/zero
:
:hugo writes:
:> mmap failed for /dev/zero
:>
:> You folks at SGI listening? ;-)
:
:Yes, this error message was improved over two years ago.
:I'm impressed that people are still running Performer 1.0.
:
:You know we released Performer 1.2 for 4.0.5 as well as 5.

Jim addressed the problem as posed, but there is something else
that should be said to people who are running IRIX 4.0.5
binaries on IRIX 5.0+ systems, and that is the fact that all
multiprocessing applications are forced to run on a single
CPU. In the case of Performer's APP+CULL+DRAW model,
you'll indeed have three processes, but they'll all be mashed
onto a single physical processor due to multi-process
synchronization and coherency differences between the
two IRIX versions.

This is a terrible situation for anyone running old binaries
on new machines. My advice: upgrade!

-- 


Be seeing you,      Phone:415.390.1455  Fax:415.965.2658 M/S:8U-590
Michael T. Jones    Silicon Graphics, Advanced Graphics Division
mtj++at++sgi.com         2011 N. Shoreline Blvd., Mtn. View, CA 94039-7311

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