My Linux drive is showing up as PIO4 mode under windows. I hope it is not doing this under Linux, as no DMA would kill performance. It seems that DMA is working under Linux - what is a foolproof way of checking? hdparam?
many thanks
PIO Only on EXT3 drive under Windows?
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themacmeister
PIO Only on EXT3 drive under Windows?
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
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DrHu
Re: PIO Only on EXT3 drive under Windows?
http://club.cdfreaks.com/f43/plextor-pi ... mal-49041/
http://www.tomshardware.com/forum/15680 ... -runs-mode
--windows, usually only for slower speed devices, like cd/dvd drives..
In Linux, Yes hdparm or sdparm or the bios of the machine, shows DMA is enabled
Also dmesg
http://www.tomshardware.com/forum/15680 ... -runs-mode
--windows, usually only for slower speed devices, like cd/dvd drives..
In Linux, Yes hdparm or sdparm or the bios of the machine, shows DMA is enabled
Also dmesg
- dmesg | grep DMA
[ 0.000000] DMA 0x00000010 -> 0x00001000
[ 0.000000] DMA zone: 32 pages used for memmap
[ 0.000000] DMA zone: 0 pages reserved
[ 0.000000] DMA zone: 3951 pages, LIFO batch:0
[ 1.519602] ata1: PATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0xf000 irq 14
[1.519605] ata2: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xf008 irq 15