* Hemmann, Volker Armin ([EMAIL PROTECTED]) wrote: > On Sunday 08 June 2003 05:38, Stroller wrote: > > On 8/6/03 3:05 am, "Dhruba Bandopadhyay" <[EMAIL PROTECTED]> wrote: > > > On Sat, 2003-06-07 at 20:06, Stroller wrote:
============================> snip <========================== > > [EMAIL PROTECTED] stroller $ sudo /sbin/hdparm -i /dev/hda > > > > /dev/hda: > > > > Model=IBM-DARA-212000, FwRev=AR4OA53A, SerialNo=AH0AHJ80443 > > Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } > > RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 > > BuffType=DualPortCache, BuffSize=418kB, MaxMultSect=16, MultSect=16 > > CurCHS=17475/15/63, CurSects=16513875, LBA=yes, LBAsects=23579136 > > IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} > > PIO modes: pio0 pio1 pio2 pio3 pio4 > > DMA modes: mdma0 mdma1 mdma2 > > UDMA modes: udma0 udma1 *udma2 udma3 udma4 > > AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled > > Drive conforms to: ATA/ATAPI-4 T13 1153D revision 17: 1 2 3 4 > > > > [EMAIL PROTECTED] stroller $ > > > > Maybe this hard-drive is just a particularly slow one, as Volker > > suggests..? But is seems SO considerably much slower than all the other > > hdparm results I've seen posted. 8-[ How about this for slow: iris root # hdparm -Tt /dev/hde /dev/hde: Timing buffer-cache reads: 128 MB in 1.25 seconds =102.40 MB/sec Timing buffered disk reads: 64 MB in 1.75 seconds = 36.47 MB/sec iris root # hdparm -Tt /dev/hdf /dev/hdf: Timing buffer-cache reads: -3008 MB in 0.00 seconds = -inf kB/sec Timing buffered disk reads: -1504 MB in 0.00 seconds = -inf kB/sec Hmm.. suspicious results: probably not enough free memory for a proper test. Both drives are hooked to an HT370 RAID controller (onboard). RAID is not used, just the UDMA/100 interface. hde is 2 years old, and hdf is two weeks old. Something odd is going on here; I have 512M RAM and only about 256M of that in use. Both drives have identical settings: multcount = 16 (on) IO_support = 1 (32-bit) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 1 (on) readonly = 0 (off) readahead = 8 (on) In fact, the drives are idential WD drives, except that hde the 40G version, and hdf is the 80G version. -- Leslie C. Miller LHH 447 Dept. of Philosophy Mesa State College Grand Junction, CO 81506 -------------------------------------------------------------------- GnuPG KeyID F5F77F94 Key fingerprint = EA66 E27F 1A8D 0316 B4D0 E437 3AE5 61AF F5F7 7F94 gpg --keyserver pgp.mit.edu --recv-keys F5F77F94 --------------------------------------------------------------------
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