Thread: ACA500 tested
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Old 23 December 2013, 16:13   #233
BarryB
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Join Date: Dec 2009
Location: UK
Posts: 2,414
Result using FAST CHIP ROM options from my ACA500+ACA1232:
Code:
BusSpeedTest 0.19 (mlelstv)   Buffer:     262144 Bytes, Alignment: 32768
========================================================================
memtype   addr       op         cycle     calib         bandwidth
fast      $08248000  readw     126.5 ns   normal      15.8 * 10^6 byte/s
fast      $08248000  readl     154.7 ns   normal      25.9 * 10^6 byte/s
fast      $08248000  readm     138.9 ns   normal      28.8 * 10^6 byte/s
fast      $08248000  writew    100.8 ns   normal      19.8 * 10^6 byte/s
fast      $08248000  writel    101.1 ns   normal      39.6 * 10^6 byte/s
fast      $08248000  writem     90.1 ns   normal      44.4 * 10^6 byte/s
chip      $00040000  readw    2188.9 ns   normal       0.9 * 10^6 byte/s
chip      $00040000  readl    3747.8 ns   normal       1.1 * 10^6 byte/s
chip      $00040000  readm    3032.1 ns   normal       1.3 * 10^6 byte/s
chip      $00040000  writew   1495.4 ns   normal       1.3 * 10^6 byte/s
chip      $00040000  writel   2993.0 ns   normal       1.3 * 10^6 byte/s
chip      $00040000  writem   2982.3 ns   normal       1.3 * 10^6 byte/s
rom       $00F80000  readw     126.2 ns   normal      15.8 * 10^6 byte/s
rom       $00F80000  readl     152.7 ns   normal      26.2 * 10^6 byte/s
rom       $00F80000  readm     139.4 ns   normal      28.7 * 10^6 byte/s
Result using FAST CHIP ROM options from my A1200+MX1230 (No MMU):
Code:
BusSpeedTest 0.19 (mlelstv)   Buffer:     262144 Bytes, Alignment: 32768
========================================================================
memtype   addr       op         cycle     calib         bandwidth
fast      $08338000  readw     159.8 ns   normal      12.5 * 10^6 byte/s
fast      $08338000  readl     204.2 ns   normal      19.6 * 10^6 byte/s
fast      $08338000  readm     193.5 ns   normal      20.7 * 10^6 byte/s
fast      $08338000  writew    155.6 ns   normal      12.9 * 10^6 byte/s
fast      $08338000  writel    156.3 ns   normal      25.6 * 10^6 byte/s
fast      $08338000  writem    142.3 ns   normal      28.1 * 10^6 byte/s
chip      $00068000  readw    1208.2 ns   normal       1.7 * 10^6 byte/s
chip      $00068000  readl    1209.0 ns   normal       3.3 * 10^6 byte/s
chip      $00068000  readm     881.8 ns   normal       4.5 * 10^6 byte/s
chip      $00068000  writew    849.3 ns   normal       2.4 * 10^6 byte/s
chip      $00068000  writel    856.5 ns   normal       4.7 * 10^6 byte/s
chip      $00068000  writem    843.8 ns   normal       4.7 * 10^6 byte/s
rom       $00F80000  readw     356.7 ns   normal       5.6 * 10^6 byte/s
rom       $00F80000  readl     356.2 ns   normal      11.2 * 10^6 byte/s
rom       $00F80000  readm     322.1 ns   normal      12.4 * 10^6 byte/s
Result using FAST CHIP ROM options from my A1200+ACA1232 (MMU):
Code:
BusSpeedTest 0.19 (mlelstv)   Buffer:     262144 Bytes, Alignment: 32768
========================================================================
memtype   addr       op         cycle     calib         bandwidth
fast      $083E8000  readw     126.8 ns   normal      15.8 * 10^6 byte/s
fast      $083E8000  readl     153.3 ns   normal      26.1 * 10^6 byte/s
fast      $083E8000  readm     138.9 ns   normal      28.8 * 10^6 byte/s
fast      $083E8000  writew    101.4 ns   normal      19.7 * 10^6 byte/s
fast      $083E8000  writel    101.4 ns   normal      39.4 * 10^6 byte/s
fast      $083E8000  writem     90.2 ns   normal      44.3 * 10^6 byte/s
chip      $00060000  readw    1200.4 ns   normal       1.7 * 10^6 byte/s
chip      $00060000  readl    1199.2 ns   normal       3.3 * 10^6 byte/s
chip      $00060000  readm     875.4 ns   normal       4.6 * 10^6 byte/s
chip      $00060000  writew    839.0 ns   normal       2.4 * 10^6 byte/s
chip      $00060000  writel    842.6 ns   normal       4.7 * 10^6 byte/s
chip      $00060000  writem    842.9 ns   normal       4.7 * 10^6 byte/s
rom       $00F80000  readw     126.9 ns   normal      15.8 * 10^6 byte/s
rom       $00F80000  readl     152.5 ns   normal      26.2 * 10^6 byte/s
rom       $00F80000  readm     139.4 ns   normal      28.7 * 10^6 byte/s
The chip speed issue has put me off getting an ACA1232 for my A1200, what's puzzling is that bustest shows the same access speed to chip as my MX1230 yet it clearly takes longer to load Turrican?
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