[comp.realtime] VxWorks with pSOS

adoyle@bbn.com (Allan Doyle) (12/09/89)

I would like to solicit people's opinions about the VxWorks / pSOS combination.
How well does it work? In particular, does it work with pHILE and pRISM,
the Software Components Group real-time file system and multi-cpu software?

Thanks,

	Allan Doyle



Allan Doyle                                              adoyle@bbn.com
BBN Systems and Technologies Corporation		 (617) 873-3398
70 Fawcett Street,   Cambridge, MA 02138

linimon@attctc.Dallas.TX.US (Mark Linimon) (12/12/89)

In article <49439@bbn.COM> adoyle@BBN.COM (Allan Doyle) writes:
>I would like to solicit people's opinions about the VxWorks / pSOS combination.
>How well does it work? In particular, does it work with pHILE and pRISM,
>the Software Components Group real-time file system and multi-cpu software?

When vxWorks is built on top of either the pSOS or VRTX kernels, all that is
used out of either of those products is the kernel itself.  If neither is
used then the generic 'wind' kernel is used.  A corollary is that a VRTX/pSOS
port for a board does not help you in generating a vxWorks port and
vice versa (other than in a generic sense).

A diagram may be helpful.

----------------------------------------------------------------------------
|                                                                          |
|                     user level, I/O system, etc.                         |
|                                                                          |
----------------------------------------------------------------------------
                 ||                    ||                    ||
         -----------------     ------------------            ||
         |               |     |                |            ||
         | configVrtx.c  |     |  configPsos.c  |            ||
         |               |     |                |            ||
         -----------------     ------------------            ||
                 ||                    ||                    ||
         -----------------     ------------------     ----------------
         |               |     |                |     |              |
         |  VRTX kernel  |     |  pSOS kernel   |     | wind kernel  |
         |               |     |                |     |              |
         -----------------     ------------------     ----------------

I don't think I know enough about relative performance to comment.

Mark Linimon
Mizar, Inc.
linimon@mizarvme