WANTED: Experience in developing large commercial applications on linux

WANTED: Experience in developing large commercial applications on linux

Post by Stefan Freit » Wed, 06 Sep 1995 04:00:00


currently I'm looking for people that either ported a commercial product
to linux already or are doing that right now.
This is because I would like to have information about problems that
are specific to this OS. And of course I don`t want to reinvent the wheel...

So, I'm interested in portings of applications with properties as below:
 - Motif2.0 based
 - high end 3D graphics support
   - 2 Million+ 3D-polygons per second
   - 2 X 8 bit (double buffering): at least
   - 12 bit double buffering, hardware Z-buffer, Gouraud shading: recommended
   - 24 bit       "                   "                 "       : a good choice
 - code mixture of C++, C, LISP
 - reimplementations of malloc and free (new and delete)
   - free will never give memory back to the OS
   - malloc will reuse it later
 - 2 Millions lines of code
 - 32000 files in 6000 directories
 - sophisticated development (ksh) tools to
   - enable access to SCCS/RCS for 100+ developers
   - set up hardware independant development environments
   - generate Makefiles automatically
   - support distributed compilation in workstation clusters
   - support incremental linking
 - multi language support (multi byte characters)
   - us english, german, french, italian, japanese: kanji (!)
 - binary size (of the PA/RISC executable):
   a)     debug version 74 MByte
   b) NON debug version 32 MByte
 - RAM required (NON debug version):
   48  MB to start it up
   128 MB to work with it
   256 MB make sense, the more the better ...
 - swap space required (NON debug version):
   50  MB to start it up
   300 MB recommended
   1   GB ok, the more the better ...

If you have experience with a system like this, please send an email
directly to me.
Especially I'm interested in
 a) system call compatibility (e.g sbreak),
 b) compiler bugs,
 c) ksh <-> bash compatibility,
 d) nmake performance with deeply nested directory structures,
 e) more general information about how the OS's reliability will be
    if there is a high swap load and much traffic on the net.

How often occur FS crashes and how reliable deals fsck with them?
Can I have mirror disks to reduce the risk of disk crashes?
Does linux support VFS? e.g. can I define a file system with
2 GB if I have a 1 GB disk and two 500 MB disks?

Thanks in advance for any comment,
  Stefan Freitag, Mechanical Design Division,
  3D CAD Kernel Development, Blending and Parametrics
  Hewlett-Packard GmbH Germany, Herrenberger Str. 130, Boeblingen


1. experiences with large (journaling) filesystems wanted


we are going to setup a fileserver with a volume/partition size of about 1
TB. I checked there are the following large journaling fs available:

Can anyone give me a hint which one best to use? We will produce a lot of
large tif files. What is the tool support of these fs about? How stable are
they? What about ACLs (as UFS has)? What about performance? ... in a Samba
and NFS environment?

Any comments welcome



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