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 0x08BC7020
Fast [writethrough] allocated : 33554432 bytes at 0x0ABC9020
Chip [noncacheable] allocated :  1048576 bytes at 0x0001B020
VRAM [noncacheable] allocated :   614400 bytes at 0xE0180000

Estimating VRAM access bandwidth

Read  VRAM (64-bit) : 5945.97 KB/s
Read  VRAM (32-bit) : 5382.53 KB/s
Read  VRAM (16-bit) : 2697.73 KB/s
Read  VRAM  (8-bit) : 1348.26 KB/s
Write VRAM (64-bit) : 20968.97 KB/s
Write VRAM (32-bit) : 18561.55 KB/s
Write VRAM (16-bit) : 9260.72 KB/s
Write VRAM  (8-bit) : 4615.46 KB/s

Estimating fast RAM access bandwidth [normal]

Read  FAST  (64-bit) : 113234.86 KB/s
Read  FAST  (32-bit) : 102888.18 KB/s
Read  FAST  (16-bit) : 90371.91 KB/s
Read  FAST   (8-bit) : 75114.60 KB/s
Write FAST  (64-bit) : 72235.88 KB/s
Write FAST  (32-bit) : 72339.49 KB/s
Write FAST  (16-bit) : 72349.21 KB/s
Write FAST   (8-bit) : 73998.80 KB/s

Estimating fast RAM access bandwidth [writethrough]

Read  FAST  (64-bit) : 113511.72 KB/s
Read  FAST  (32-bit) : 102943.84 KB/s
Read  FAST  (16-bit) : 90376.46 KB/s
Read  FAST   (8-bit) : 75158.52 KB/s
Write FAST  (64-bit) : 71328.31 KB/s
Write FAST  (32-bit) : 35958.89 KB/s
Write FAST  (16-bit) : 18054.35 KB/s
Write FAST   (8-bit) : 9057.09 KB/s

Estimating chip RAM access bandwidth

Read  CHIP  (64-bit) : 4887.01 KB/s
Read  CHIP  (32-bit) : 4890.08 KB/s
Read  CHIP  (16-bit) : 4882.03 KB/s
Read  CHIP   (8-bit) : 4720.74 KB/s
Write CHIP  (64-bit) : 3018.31 KB/s
Write CHIP  (32-bit) : 3016.61 KB/s
Write CHIP  (16-bit) : 3018.67 KB/s
Write CHIP   (8-bit) : 3016.08 KB/s

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

FAST -> FAST (64-bit) : 74173.24 KB/s
FAST -> FAST (32-bit) : 74180.73 KB/s
FAST -> FAST (16-bit) : 46290.61 KB/s
FAST -> FAST  (8-bit) : 23675.42 KB/s

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

FAST -> FAST (64-bit) : 46845.40 KB/s
FAST -> FAST (32-bit) : 28445.26 KB/s
FAST -> FAST (16-bit) : 15930.64 KB/s
FAST -> FAST  (8-bit) : 8486.99 KB/s

Estimating fast RAM [normal] to VRAM copy bandwidth

FAST -> VRAM (64-bit) : 17946.86 KB/s
FAST -> VRAM (32-bit) : 15772.46 KB/s
FAST -> VRAM (16-bit) : 8476.11 KB/s
FAST -> VRAM  (8-bit) : 4419.31 KB/s

Estimating VRAM to RAM [normal] copy bandwidth

VRAM -> FAST (64-bit) : 5290.89 KB/s
VRAM -> FAST (32-bit) : 4692.30 KB/s
VRAM -> FAST (16-bit) : 2401.99 KB/s
VRAM -> FAST  (8-bit) : 1212.07 KB/s

Estimating VRAM to RAM [writethrough] copy bandwidth

VRAM -> FAST (64-bit) : 5390.73 KB/s
VRAM -> FAST (32-bit) : 4577.51 KB/s
VRAM -> FAST (16-bit) : 2292.76 KB/s
VRAM -> FAST  (8-bit) : 1146.43 KB/s

Estimating FAST [normal] to CHIP copy bandwidth

FAST -> CHIP (64-bit) : 2894.55 KB/s
FAST -> CHIP (32-bit) : 2940.40 KB/s
FAST -> CHIP (16-bit) : 2933.82 KB/s
FAST -> CHIP  (8-bit) : 2923.11 KB/s

Estimating CHIP to FAST [normal] copy bandwidth

CHIP -> FAST (64-bit) : 4573.84 KB/s
CHIP -> FAST (32-bit) : 4637.28 KB/s
CHIP -> FAST (16-bit) : 4508.59 KB/s
CHIP -> FAST  (8-bit) : 4045.25 KB/s

Estimating CHIP to FAST [writethrough] copy bandwidth

CHIP -> FAST (64-bit) : 4635.19 KB/s
CHIP -> FAST (32-bit) : 4294.80 KB/s
CHIP -> FAST (16-bit) : 3862.64 KB/s
CHIP -> FAST  (8-bit) : 3184.47 KB/s