Voici les résultats (pour info, c'est un disque SAT 5400 trs/min) :
Disque IDE :
6.Workbench:> c:scsispeed DRIVE a1ide.device:0 FAST BUF1=8192 BUF2=16384 BUF3=32768 BUF4=65536
MKSoft ScsiSpeed 4.2 Copyright ? 1989-92 MKSoft Development
AmigaOS4 port by Stéphane Guillard
------------------------------------------------------------
CPU: 68020 AmigaOS Version: 53.8
Device: a1ide.device:0
Testing with a 8192 byte, MEMF_FAST, LONG-aligned buffer.
Read from SCSI: 25534873 bytes/sec
Testing with a 16384 byte, MEMF_FAST, LONG-aligned buffer.
Read from SCSI: 28804710 bytes/sec
Testing with a 32768 byte, MEMF_FAST, LONG-aligned buffer.
Read from SCSI: 30962483 bytes/sec
Testing with a 65536 byte, MEMF_FAST, LONG-aligned buffer.
Read from SCSI: 32794214 bytes/sec
Disque SATA :
6.Workbench:> c:scsispeed DRIVE sii3114ide.device:3 FAST BUF1=8192 BUF2=16384 BUF3=32768 BUF4=65536
MKSoft ScsiSpeed 4.2 Copyright ? 1989-92 MKSoft Development
AmigaOS4 port by Stéphane Guillard
------------------------------------------------------------
CPU: 68020 AmigaOS Version: 53.8
Device: sii3114ide.device:3
Testing with a 8192 byte, MEMF_FAST, LONG-aligned buffer.
Read from SCSI: 24494489 bytes/sec
Testing with a 16384 byte, MEMF_FAST, LONG-aligned buffer.
Read from SCSI: 31824281 bytes/sec
Testing with a 32768 byte, MEMF_FAST, LONG-aligned buffer.
Read from SCSI: 37850316 bytes/sec
Testing with a 65536 byte, MEMF_FAST, LONG-aligned buffer.
Read from SCSI: 41022259 bytes/sec
La grosse différence néanmoins est dans l'utilisation CPU, bien moindre en SATA qu'en IDE.
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AmigaONE X1000/1,8 Ghz (A-Eon), Radeon RX560, 2 Go de Ram et OS4.1 FE