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zdarvim vsechny,

dnes jsem tak cvicne zjistoval jakou ze maji moje disky rychlost na takovemto hw/sw:

# uname -r

2.6.16-gentoo-r13

# lsmod | grep ata

ata_piix               12292  0
sata_vsc                9668  0
sata_sis                9348  0
sata_sx4               14980  0
sata_nv                10948  5
sata_via                9924  0
sata_svw                9156  0
sata_sil               12104  0
sata_promise           13444  0
libata                 64856  9 ata_piix,sata_vsc,sata_sis,sata_sx4,sata_nv,sata_via,sata_svw,sata_sil,sata_promise

disky jsou:

*-storage:0
          description: RAID bus controller
          product: CK804 Serial ATA Controller
          vendor: nVidia Corporation
          physical id: 7
          bus info: pci@00:07.0
          logical name: scsi0
          version: f3
          width: 32 bits
          clock: 66MHz
          capabilities: storage bus_master cap_list emulated
          configuration: driver=sata_nv latency=0 maxlatency=1 mingnt=3
          resources: ioport:9f0-9f7 ioport:bf0-bf3 ioport:970-977 ioport:b70-b73 ioport:cc00-cc0f iomemory:fe02b000-fe02bfff irq:18
        *-disk
             description: SCSI Disk
             product: ST3250823AS
             vendor: ATA
             physical id: 0.0.0
             bus info: scsi@0:0.0.0
             logical name: /dev/sda
             version: 3.03
             serial: 3ND1NTYX
             size: 232GB
             capabilities: partitioned partitioned:dos
             configuration: ansiversion=5
      
     *-storage:1
          description: RAID bus controller
          product: CK804 Serial ATA Controller
          vendor: nVidia Corporation
          physical id: 8
          bus info: pci@00:08.0
          logical name: scsi2
          version: f3
          width: 32 bits
          clock: 66MHz
          capabilities: storage bus_master cap_list emulated
          configuration: driver=sata_nv latency=0 maxlatency=1 mingnt=3
          resources: ioport:9e0-9e7 ioport:be0-be3 ioport:960-967 ioport:b60-b63 ioport:b800-b80f iomemory:fe02a000-fe02afff irq:19
        *-disk
             description: SCSI Disk
             product: WDC WD3200KS-00P
             vendor: ATA
             physical id: 0.0.0
             bus info: scsi@2:0.0.0
             logical name: /dev/sdb
             version: 21.0
             serial: WD-WCAPD1481709
             size: 298GB
             capabilities: partitioned partitioned:dos
             configuration: ansiversion=5

rychlost dle hdparm celkem obstojna, nicmene pro SATA jsou na windows mnohem lepsi vysledky nez:

# hdparm -tT /dev/sda /dev/sdb

/dev/sda:
 Timing cached reads:   3212 MB in  2.00 seconds = 1605.19 MB/sec
 Timing buffered disk reads:  188 MB in  3.02 seconds =  62.34 MB/sec

/dev/sdb:
 Timing cached reads:   3200 MB in  2.00 seconds = 1599.97 MB/sec
 Timing buffered disk reads:   184 MB in  3.01 seconds =  61.20 MB/sec

no a ted otazka, je mozne disky jeste nejak zrychlit, respektive dostal nekdo nekdy z neceho vic :)

vim ze se chystaji zmeny v SATA v novych jadrech a taky jsem si vedom, ze Nvidia zakazala pouziti NCQ ... mohl by nekdo jeste poskytnout nejake poznatky teto problematice?

diky.