Messages in this thread | | | From | Brendan Pike <> | Subject | Re: IDE Harddrive Performance | Date | Thu, 20 Dec 2001 09:12:28 -0400 |
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Well i really cant explain this,
[root@spikes spike]# /sbin/hdparm -t /dev/hda /dev/hda: Timing buffered disk reads: 64 MB in 6.65 seconds = 9.62 MB/sec
[root@spikes spike]# cat /proc/ide/via ----------VIA BusMastering IDE Configuration---------------- Driver Version: 3.29 South Bridge: VIA vt82c586b Revision: ISA 0x47 IDE 0x6 Highest DMA rate: UDMA33 BM-DMA base: 0xe000 PCI clock: 33MHz Master Read Cycle IRDY: 1ws Master Write Cycle IRDY: 1ws BM IDE Status Register Read Retry: yes Max DRDY Pulse Width: No limit -----------------------Primary IDE-------Secondary IDE------ Read DMA FIFO flush: yes yes End Sector FIFO flush: no no Prefetch Buffer: yes yes Post Write Buffer: yes no Enabled: yes yes Simplex only: no no Cable Type: 40w 40w -------------------drive0----drive1----drive2----drive3----- Transfer Mode: UDMA PIO UDMA PIO Address Setup: 30ns 120ns 30ns 120ns Cmd Active: 90ns 90ns 90ns 90ns Cmd Recovery: 30ns 30ns 30ns 30ns Data Active: 90ns 330ns 90ns 330ns Data Recovery: 30ns 270ns 30ns 270ns Cycle Time: 60ns 600ns 60ns 600ns Transfer Rate: 33.0MB/s 3.3MB/s 33.0MB/s 3.3MB/s
[root@spikes spike]# /sbin/hdparm -i /dev/hda
/dev/hda:
Model=FUJITSU MPG3409AT E, FwRev=82B9, SerialNo=VH06T1408HST Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=80063424 IORDY=yes, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4 udma5
[root@spikes spike]# /sbin/hdparm /dev/hda
/dev/hda: multcount = 16 (on) I/O support = 3 (32-bit w/sync) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 4983/255/63, sectors = 80063424, start = 0
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