Experimental Physics and
Industrial Control System

In message <[email protected]>
   "Re: frc64/frc604RT performance"
   "Marty Kraimer <[email protected]>" wrote:

>.......
>frc40:frc64:frc604RT=1:1.2:5.25
>
>Not sure which way makes most sense but they give similar results.
>
>I am really suprised by the 68060 numbers. Could you please
>tell us the following:
>
>For each cpu give
>   a) Speed of main memory.
>   b) Speed and size of cache memory.

I got some information about the Force boards from the vendor.

   CPU                       	memory(DRAM)	cache	L2cache   
1. CPU-40(68040-25MHz)  	70nsec(60nsec)	4Kbyte	no
2. CPU-64(68060-50MHz)  	60nsec  	8kbyte	no
3. CPU-604RT(ppc-100MHz)	60nsec  	16kbyte	no option(option-256KB)
 
DRAM performance by using burst access:
1.CPU-40
Read	25 MHz = 50 MByte/sec
Write	25 MHz = 50 MByte/sec

2.CPU-60
Read	25/50 MHz = 50 MByte/sec
Write	25/50 MHz = 66 MByte/sec

3.CPU-64
Read	25/50 MHz = 70 MByte/sec.
Write	25/50 MHz = 75 MByte/sec.

-----------------------------------------------------------
Masahiro KAJI
KEKB Accelerator Control Group
National Laboratory for High Energy Physics(KEK), Japan
E-mail:[email protected]
-----------------------------------------------------------

References:

Re: frc64/frc604RT performance Marty Kraimer

Navigate by Date:

Prev: RTYP ? Jeff Hill

Next: Re: alarm-handling questions watson

Index: 1994  1995  <1996>  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 

Navigate by Thread:

Prev: Re: frc64/frc604RT performance Johnny Tang

Next: Re: frc64/frc604RT performance Noboru Yamamoto

Index: 1994  1995  <1996>  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024