So there isn't any problem is it? I saw this thing because of a system that seems to be slower and with more hd access so i assumed the message
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx as something wrong on my system. --- James Sparenberg <[EMAIL PROTECTED]> wrote: > On Mon, 2003-11-17 at 13:12, Angelo Naselli wrote: > > Any idea? why 16 bit ? > > > > [EMAIL PROTECTED] angelo]# /sbin/hdparm -v /dev/hda > > > > /dev/hda: > > multcount = 16 (on) > > This is what I think you are refering to. from the > man page. > > -m Get/set sector count for multiple sector > I/O on the drive. > A setting of 0 disables this feature. Multiple > sector mode > (aka IDE Block Mode), is a feature of most > modern IDE hard > drives, permitting the transfer of multiple sectors > per I/O > interrupt, rather than the usual one sector per > interrupt. > When this feature is enabled, it typically reduces > operating > system overhead for disk I/O by 30-50%. On > many > systems, it also provides increased data throughput > of > anywhere from 5% to 50%. Some drives, however > (most > notably the WD Caviar series), seem to run slower > with multiple mode > enabled. Your mileage may vary. Most > drives support the minimum settings of 2, 4, > 8, or 16 > (sectors). Larger settings may also be possible, > depending > on the drive. A setting of 16 or 32 seems optimal > on many systems. > Western Digital recommends lower settings of 4 to > 8 on many of their drives, due tiny (32kB) > drive buffers > and non-optimized buffering algorithms. The -i > flag can be > used to find the maximum setting supported by > an installed > drive (look for MaxMultSect in the output). Some > drives claim > to support multiple mode, but lose data at > some > settings. Under rare circumstances, such failures > can result > in massive filesystem corruption. > > The 16 bit setting is a least common denominator. A > good number of > drives out there either can't do or if they do, have > no gain going to 32 > bit. 32 bit also increases the chance of data > corruption on drives that > are dicey. So MDK and others pic the method least > likely to cause > problems. 16bit. > > James > > > IO_support = 0 (default 16-bit) > > unmaskirq = 0 (off) > > using_dma = 1 (on) > > keepsettings = 0 (off) > > readonly = 0 (off) > > readahead = 8 (on) > > geometry = 9964/255/63, sectors = 160086528, > start = 0 > > [EMAIL PROTECTED] angelo]# dmesg > > [...] > > Serial driver version 5.05c (2001-07-08) with > HUB-6 MANY_PORTS MULTIPORT > > SHARE_I > > RQ SERIAL_PCI ISAPNP enabled > > ttyS00 at 0x03f8 (irq = 4) is a 16550A > > ttyS01 at 0x02f8 (irq = 3) is a 16550A > > RAMDISK driver initialized: 16 RAM disks of 32000K > size 1024 blocksize > > Uniform Multi-Platform E-IDE driver Revision: > 7.00beta4-2.4 > > ide: Assuming 33MHz system bus speed for PIO > modes; override with idebus=xx > > SIS5513: IDE controller at PCI slot 00:02.5 > > SIS5513: chipset revision 208 > > SIS5513: not 100% native mode: will probe irqs > later > > SIS5513: SiS735 ATA 100 (2nd gen) controller > > ide0: BM-DMA at 0xff00-0xff07, BIOS settings: > hda:DMA, hdb:DMA > > ide1: BM-DMA at 0xff08-0xff0f, BIOS settings: > hdc:DMA, hdd:DMA > > hda: Maxtor 6Y080L0, ATA DISK drive > > blk: queue c0181bc0, I/O limit 4095Mb (mask > 0xffffffff) > > hdc: SAMSUNG DVD-ROM SD-616Q, ATAPI CD/DVD-ROM > drive > > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 > > ide1 at 0x170-0x177,0x376 on irq 15 > > hda: attached ide-disk driver. > > hda: host protected area => 1 > > hda: 160086528 sectors (81964 MB) w/2048KiB Cache, > CHS=9964/255/63, UDMA(33) > > Partition check: > > /dev/ide/host0/bus0/target0/lun0: p1 p2 < p5 p6 > p7 > > > [...] > > > > > > > > > ______________________________________________________________________ > > Want to buy your Pack or Services from > MandrakeSoft? > > Go to http://www.mandrakestore.com > > > > Want to buy your Pack or Services from MandrakeSoft? > > Go to http://www.mandrakestore.com > __________________________________ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree
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