Secondary unified instruction/data cache size

Secondary unified instruction/data cache size

Post by Bob Haski » Sat, 04 Nov 1995 04:00:00



I have the following INDY machine:

Iris Audio Processor: version A2 revision 4.1.0
1 150 MHZ IP22 Processor
FPU: MIPS R4010 Floating Point Chip Revision: 0.0
CPU: MIPS R4400 Processor Chip Revision: 5.0
On-board serial ports: 2
On-board bi-directional parallel port
Data cache size: 16 Kbytes
Instruction cache size: 16 Kbytes
Secondary unified instruction/data cache size: 1 Mbyte
Main memory size: 64 Mbytes
Integral ISDN: Basic Rate Interface unit 0, revision 1.0
Integral Ethernet: ec0, version 1
Integral SCSI controller 0: Version WD33C93B, revision D
CDROM: unit 6 on SCSI controller 0
Disk drive / removable media: unit 5 on SCSI controller 0
Tape drive: unit 4 on SCSI controller 0: DAT
Disk drive: unit 3 on SCSI controller 0
Disk drive: unit 1 on SCSI controller 0
Graphics board: Indy 24-bit
Vino video: unit 0, revision 0, IndyCam connected

what I need to know. Is there a way to upgrade my
Secondary unified instruction/data cache size to 2 meg. like you have done in
your INDIGO 2's

Bob Haskin, Owner
CADDman
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1. data & instruction cache size upgrade for PI?

We have several 4D/20tg PIs, with differing data and instruction
cache sizes.

The largest have 32K data and 64K instruction, and these are still
quite useable machines for student work.

The smallest have 8K data and 16K instruction, and the lag-time
on the graphical login typeahead is almost unbearable.  I'll not
even mention how bad they perform otherwise.

My question is, what is involved in upgrading the data and instruction
cache sizes of these machines?  Is it a full CPU-board-type swap?  Can
it even be done?  $$??

Tnx in advance.

cheers,
sr.
--
|| Steve Rikli             |||  Visualization Lab               ||

|| 409-845-3465            |||  College Station, TX  77843-3137 ||

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