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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!uwm.edu!ogicse!nabil
- From: nabil@ogicse.ogi.edu (Aaron Nabil)
- Newsgroups: comp.dcom.sys.cisco
- Subject: Which has a faster processor, a 4000 or a CSC/4 based system?
- Message-ID: <47707@ogicse.ogi.edu>
- Date: 24 Dec 92 20:31:38 GMT
- Article-I.D.: ogicse.47707
- Distribution: world
- Organization: Explosive Space Modulators - R - Us
- Lines: 40
-
- I need to know which platform has the fastest processor. Please do not
- answer with...
-
- Well, what you are *really* interested is how fast it routes packets, which
- varies with the interface, cards, cbus controller etc. But if you would tell
- me a little more about what you are trying to do, maybe I can...
-
- Which seems to be the current prefered answer from my local support engineer
- (Seattle). Since I'm not used to letting people think for me, and I'm the
- one with the money, I would prefer an answer to my question instead of "help"
- I neither need nor want.
-
- Let me clarify by what I mean a "faster" processor. By faster, I mean able
- to perform CPU-intensive processes faster, not which has a faster clock. Just
- as a sort of benchmark for the sake of this explanation, lets use as an example
- the amount of time it takes for a bgp process to reload and rehash all of
- the NSFNET routes that it gets when you first turn on a router that is
- peering with the NSF backbone.
-
- I'd prefer results of an actual benchmark, but I'll settle for the following
- if none is availiable. I can compute the rough performance from the
- info below.
-
- What is the processor in a CSC/4 (a 68040, I know that already).
- A 4000? (Some kind of 68030, but is it *exactly* a 68030, or is it one of
- those multifunction jobs?)
-
- What are the CPU to RAM/ROM/flash data path widths? (For the CSC/4, assume we
- are accessing only on-card resources, not going over the multibus)
-
- How many wait states to access RAM/ROM/flash over those paths?
-
- What are the clock speeds? Are they...
- CSC/4 16Mhz
- 4000 40Mhz
-
- Thank you in advance.
- --
- Aaron Nabil
- nabil@cse.ogi.edu
-