(At least, the version of the book on the 2004.3 universal CD had such a line.)
rgh.
Alexander Veit wrote:
Hello,
I've built Gentoo from stage 1 with the 2.6.11-gentoo-r5 kernel. The hardware is a VIA EPIA PD6000E board (Samuel 2 processor).
hdparm -t /dev/hda reports slow buffered disk reads compared with values that were measured with Knoppix 3.4 (2.4.23 kernel). The file sytem is xfs.
Gentoo root # hdparm -tT /dev/hda
/dev/hda: Timing cached reads: 272 MB in 2.01 seconds = 135.01 MB/sec Timing buffered disk reads: 54 MB in 3.03 seconds = 17.80 MB/sec
Gentoo root # hdparm -vid /dev/hda
/dev/hda: multcount = 16 (on) IO_support = 1 (32-bit) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 65535/16/63, sectors = 40037760000, start = 0
Model=MAXTOR 4K040H2, FwRev=A08.1500, SerialNo=672123459983 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=16383/16/63, TrkSize=32256, SectSize=21298, ECCbytes=4 BuffType=DualPortCache, BuffSize=2000kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78198750 IORDY=on/off, tPIO={min:120,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-5 T13 1321D revision 1:
* signifies the current active mode
Knoppix root # hdparm -tT /dev/hda
/dev/hda: Timing buffer-cache reads: 280 MB in 2.02 seconds = 138.61 MB/sec Timing buffered disk reads: 98 MB in 3.01 seconds = 32.56 MB/sec
Knoppix root # hdparm -vid /dev/hda
/dev/hda: multcount = 16 (on) IO_support = 1 (32-bit) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 4867/255/63, sectors = 78198750, start = 0
Model=MAXTOR 4K040H2, FwRev=A08.1500, SerialNo=672123459983 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=16383/16/63, TrkSize=32256, SectSize=21298, ECCbytes=4 BuffType=DualPortCache, BuffSize=2000kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78198750 IORDY=on/off, tPIO={min:120,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-5 T13 1321D revision 1:
* signifies the current active mode
---> Gentoo .config --- #... CONFIG_IDE=y CONFIG_BLK_DEV_IDE=y
# # Please see Documentation/ide.txt for help/info on IDE drives # # CONFIG_BLK_DEV_IDE_SATA is not set # CONFIG_BLK_DEV_HD_IDE is not set CONFIG_BLK_DEV_IDEDISK=y CONFIG_IDEDISK_MULTI_MODE=y CONFIG_BLK_DEV_IDECD=y # CONFIG_BLK_DEV_IDETAPE is not set # CONFIG_BLK_DEV_IDEFLOPPY is not set # CONFIG_BLK_DEV_IDESCSI is not set # CONFIG_IDE_TASK_IOCTL is not set
# # IDE chipset support/bugfixes # # CONFIG_IDE_GENERIC is not set # CONFIG_BLK_DEV_CMD640 is not set # CONFIG_BLK_DEV_IDEPNP is not set CONFIG_BLK_DEV_IDEPCI=y CONFIG_IDEPCI_SHARE_IRQ=y # CONFIG_BLK_DEV_OFFBOARD is not set # CONFIG_BLK_DEV_GENERIC is not set # CONFIG_BLK_DEV_OPTI621 is not set # CONFIG_BLK_DEV_RZ1000 is not set CONFIG_BLK_DEV_IDEDMA_PCI=y # CONFIG_BLK_DEV_IDEDMA_FORCED is not set CONFIG_IDEDMA_PCI_AUTO=y # CONFIG_IDEDMA_ONLYDISK is not set # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_BLK_DEV_ALI15X3 is not set # CONFIG_BLK_DEV_AMD74XX is not set # CONFIG_BLK_DEV_ATIIXP is not set # CONFIG_BLK_DEV_CMD64X is not set # CONFIG_BLK_DEV_TRIFLEX is not set # CONFIG_BLK_DEV_CY82C693 is not set # CONFIG_BLK_DEV_CS5520 is not set # CONFIG_BLK_DEV_CS5530 is not set # CONFIG_BLK_DEV_HPT34X is not set # CONFIG_BLK_DEV_HPT366 is not set # CONFIG_BLK_DEV_SC1200 is not set # CONFIG_BLK_DEV_PIIX is not set # CONFIG_BLK_DEV_NS87415 is not set # CONFIG_BLK_DEV_PDC202XX_OLD is not set # CONFIG_BLK_DEV_PDC202XX_NEW is not set # CONFIG_BLK_DEV_SVWKS is not set # CONFIG_BLK_DEV_SIIMAGE is not set # CONFIG_BLK_DEV_SIS5513 is not set # CONFIG_BLK_DEV_SLC90E66 is not set # CONFIG_BLK_DEV_TRM290 is not set CONFIG_BLK_DEV_VIA82CXXX=y # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set CONFIG_IDEDMA_AUTO=y # CONFIG_BLK_DEV_HD is not set #... ---< Gentoo .config ---
Any ideas how to get the same disk performance with Gentoo?
Thanks in advance Alex
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