Memory/Bus bandwidth estimation (WarpOS/PPC) (c) Karl Churchill 2004

System Info

CPU : 604e [PVR:0x00090204]
CPU : 200.000 MHz
FSB :  66.667 MHz

Fast [cache normal] allocated : 33554432 bytes at 0x09284020
Fast [writethrough] allocated : 33554432 bytes at 0x0B286020
Chip [noncacheable] allocated :  1048576 bytes at 0x00031020
VRAM [noncacheable] allocated :   614400 bytes at 0xE0480000

Estimating VRAM access bandwidth

Read  VRAM (64-bit) : 6116.45 KB/s
Read  VRAM (32-bit) : 5546.04 KB/s
Read  VRAM (16-bit) : 2779.01 KB/s
Read  VRAM  (8-bit) : 1387.67 KB/s
Write VRAM (64-bit) : 20769.57 KB/s
Write VRAM (32-bit) : 18227.42 KB/s
Write VRAM (16-bit) : 9121.02 KB/s
Write VRAM  (8-bit) : 4532.39 KB/s

Estimating fast RAM access bandwidth [normal]

Read  FAST  (64-bit) : 110936.49 KB/s
Read  FAST  (32-bit) : 100887.25 KB/s
Read  FAST  (16-bit) : 88857.64 KB/s
Read  FAST   (8-bit) : 74008.50 KB/s
Write FAST  (64-bit) : 70965.22 KB/s
Write FAST  (32-bit) : 70861.55 KB/s
Write FAST  (16-bit) : 71011.17 KB/s
Write FAST   (8-bit) : 72421.06 KB/s

Estimating fast RAM access bandwidth [writethrough]

Read  FAST  (64-bit) : 111146.99 KB/s
Read  FAST  (32-bit) : 100809.76 KB/s
Read  FAST  (16-bit) : 88909.87 KB/s
Read  FAST   (8-bit) : 74029.16 KB/s
Write FAST  (64-bit) : 69828.65 KB/s
Write FAST  (32-bit) : 35293.11 KB/s
Write FAST  (16-bit) : 17731.50 KB/s
Write FAST   (8-bit) : 8903.42 KB/s

Estimating chip RAM access bandwidth

Read  CHIP  (64-bit) : 4845.28 KB/s
Read  CHIP  (32-bit) : 4848.18 KB/s
Read  CHIP  (16-bit) : 4839.25 KB/s
Read  CHIP   (8-bit) : 4711.79 KB/s
Write CHIP  (64-bit) : 2993.58 KB/s
Write CHIP  (32-bit) : 2988.13 KB/s
Write CHIP  (16-bit) : 2993.89 KB/s
Write CHIP   (8-bit) : 2988.79 KB/s

Estimating fast RAM [normal] to fast RAM [normal] bandwidth

FAST -> FAST (64-bit) : 72721.00 KB/s
FAST -> FAST (32-bit) : 72504.72 KB/s
FAST -> FAST (16-bit) : 45724.55 KB/s
FAST -> FAST  (8-bit) : 23548.53 KB/s

Estimating fast RAM [normal] to fast RAM [writethrough] bandwidth

FAST -> FAST (64-bit) : 45943.85 KB/s
FAST -> FAST (32-bit) : 27903.21 KB/s
FAST -> FAST (16-bit) : 15634.03 KB/s
FAST -> FAST  (8-bit) : 8357.67 KB/s

Estimating fast RAM [normal] to VRAM copy bandwidth

FAST -> VRAM (64-bit) : 17644.07 KB/s
FAST -> VRAM (32-bit) : 15532.70 KB/s
FAST -> VRAM (16-bit) : 8341.75 KB/s
FAST -> VRAM  (8-bit) : 4359.73 KB/s

Estimating VRAM to RAM [normal] copy bandwidth

VRAM -> FAST (64-bit) : 5512.75 KB/s
VRAM -> FAST (32-bit) : 4862.88 KB/s
VRAM -> FAST (16-bit) : 2496.55 KB/s
VRAM -> FAST  (8-bit) : 1262.90 KB/s

Estimating VRAM to RAM [writethrough] copy bandwidth

VRAM -> FAST (64-bit) : 5614.98 KB/s
VRAM -> FAST (32-bit) : 4766.94 KB/s
VRAM -> FAST (16-bit) : 2389.13 KB/s
VRAM -> FAST  (8-bit) : 1196.21 KB/s

Estimating FAST [normal] to CHIP copy bandwidth

FAST -> CHIP (64-bit) : 2846.97 KB/s
FAST -> CHIP (32-bit) : 2897.10 KB/s
FAST -> CHIP (16-bit) : 2891.19 KB/s
FAST -> CHIP  (8-bit) : 2868.34 KB/s

Estimating CHIP to FAST [normal] copy bandwidth

CHIP -> FAST (64-bit) : 4580.72 KB/s
CHIP -> FAST (32-bit) : 4588.76 KB/s
CHIP -> FAST (16-bit) : 4479.70 KB/s
CHIP -> FAST  (8-bit) : 4022.23 KB/s

Estimating CHIP to FAST [writethrough] copy bandwidth

CHIP -> FAST (64-bit) : 4585.77 KB/s
CHIP -> FAST (32-bit) : 4258.50 KB/s
CHIP -> FAST (16-bit) : 3823.43 KB/s
CHIP -> FAST  (8-bit) : 3147.26 KB/s