Messages in this thread | | | Date | Sun, 2 Nov 2003 11:48:18 +0100 | From | Claas Langbehn <> | Subject | RE: VIA IDE performance under 2.6.0-test7/8? (and test9) |
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Hi,
If I cat /proc/ide/via it shows that my harddisc is only using 88,8 MB/s, but it is an U100-disc. hdparm show that its using udma5, is this all correct, or should /proc/ide/via show 99,9 MB/s ?
----------VIA BusMastering IDE Configuration---------------- Driver Version: 3.38 South Bridge: VIA vt8235 Revision: ISA 0x0 IDE 0x6 Highest DMA rate: UDMA133 BM-DMA base: 0xdc00 PCI clock: 33.3MHz Master Read Cycle IRDY: 0ws Master Write Cycle IRDY: 0ws 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 yes Enabled: yes yes Simplex only: no no Cable Type: 80w 80w -------------------drive0----drive1----drive2----drive3----- Transfer Mode: UDMA PIO UDMA PIO Address Setup: 120ns 120ns 120ns 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: 22ns 600ns 60ns 600ns Transfer Rate: 88.8MB/s 3.3MB/s 33.3MB/s 3.3MB/s
# hdparm -i /dev/hda
/dev/hda:
Model=ST3120023A, FwRev=3.33, SerialNo=3KA1ERGQ Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=234441648 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 *udma5 AdvancedPM=no WriteCache=enabled Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2:
* signifies the current active mode
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