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- Path: sparky!uunet!usc!elroy.jpl.nasa.gov!ames!agate!dog.ee.lbl.gov!lbl.gov!vxwexplo
- From: stan@rti.com (Stan Schneider)
- Newsgroups: comp.os.vxworks
- Subject: re: VME backplane speedup
- Date: Thu, 20 Aug 92 21:36:53 PDT
- Organization: Lawrence Berkeley Laboratory, Berkeley CA
- Lines: 30
- Sender: vxwexplo@lbl.gov
- Message-ID: <9208210436.AA19381@rti.com>
- NNTP-Posting-Host: 128.3.112.16
- Originator: daemon@vxw.ee.lbl.gov
-
- >> Submitted-by cnaka@amd-1s.hac.com Thu Aug 20 17:01:28 1992
- >> Submitted-by: cnaka@amd-1s.hac.com (Cary Nakamura)
- >>
- >>
- >>
- >>
- >> I have a VME-based system which is sending data between
- >> a Motorola MVME167 ('040, 33 Mhz) and a second board using
- >> an '030. The VxWorks sockets mechanism of data transfer
- >> between two processes, each running on a different VME board
- >> is too slow for the amount of data I am transferring.
- >>
- >> For example, has anyone implemented a way to use the 167s DMA
- >> transfer capability to boost data transfer?
-
- We have a little "shared memory server" that will allow your boards to export &
- import shared memory segments. All it does is allocate memory that both sides
- can use & communicate the address; the actual transfer is up to you. It's not
- elegant, but...
-
- -- Stan
-
-
- ===============================================================================
- = = =
- = Stan Schneider = email: stan@rti.com =
- = Real-Time Innovations, Inc. = Phone: (408) 720-8312 =
- = 954 Aster, Sunnyvale, CA 94086 = Fax: (408) 720-8419 =
- = = =
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