Date: Fri, 15 Oct 2004 19:39:51 +0200 From: fandino <fandino@ng.fadesa.es> To: freebsd-questions@freebsd.org Subject: Re: FreeBSD and poor ata performance Message-ID: <41700B67.4090107@ng.fadesa.es> In-Reply-To: <b2807d04041015100129210a6@mail.gmail.com> References: <416EB6B1.6060405@ng.fadesa.es> <416F849F.8020508@solid-state-logic.com> <416F90E6.10108@ng.fadesa.es> <200410151223.33355.howells@kde.org> <416FF477.4010408@ng.fadesa.es> <b2807d04041015100129210a6@mail.gmail.com>
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Subhro wrote:
> sysctl -a | grep dma ?
vfs.iodmaxidle: 120
vfs.nfs.iodmax: 20
hw.ata.ata_dma: 1
hw.ata.atapi_dma: 1
hw.busdma.free_bpages: 128
hw.busdma.reserved_bpages: 0
hw.busdma.active_bpages: 0
hw.busdma.total_bpages: 128
hw.busdma.total_bounced: 0
hw.busdma.total_deferred: 0
dev.atdma.0.%driver: atdma
dev.atdma.0.%location: handle=\_SB_.PCI0.PX40.DMA1
dev.atdma.0.%pnpinfo: _HID=PNP0200 _UID=0
dev.atdma.0.%parent: acpi0
# atacontrol list
ATA channel 0:
Master: ad0 <ST340823A/3.32> ATA/ATAPI revision 4
Slave: acd0 <HL-DT-ST DVDRAM GSA-4081B/A100> ATA/ATAPI revision 5
ATA channel 1:
Master: ad2 <ST340810A/5.33> ATA/ATAPI revision 6
Slave: acd1 <TOSHIBA DVD-ROM SD-M1612/1004> ATA/ATAPI revision 5
ATA channel 2:
Master: ad4 <ST340014A/3.54> ATA/ATAPI revision 6
Slave: ad5 <Maxtor 6E040L0/NAR61EA0> ATA/ATAPI revision 7
ATA channel 3:
Master: ad6 <ST340014A/3.06> ATA/ATAPI revision 6
Slave: ad7 <Maxtor 6E040L0/NAR61EA0> ATA/ATAPI revision 7
# atacontrol mode 0
Master = UDMA100
Slave = UDMA33
# atacontrol mode 1
Master = UDMA100
Slave = UDMA33
# atacontrol mode 2
Master = UDMA100
Slave = UDMA100
# atacontrol mode 3
Master = UDMA100
Slave = UDMA100
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