大家过年好！我的LINUX拷文件很卡，32bit打开了。哪位知道什么原因，请告之不胜感激。
[root@localhost~]#hdparm-Tt/dev/hda
/dev/hda:
Timingcachedreads:1894MBin2.00seconds=947.64MB/sec
Timingbuffereddiskreads:12MBin3.59seconds=3.34MB/sec
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[root@localhost~]#hdparm-v/dev/hda
/dev/hda:
multcount=16(on)
IO_support=3(32-bitw/sync)
unmaskirq=0(off)
using_dma=0(off)
keepsettings=0(off)
readonly=0(off)
readahead=256(on)
geometry=16383/255/63,sectors=156301488,start=0
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[root@localhost~]#hdparm-i/dev/hda
/dev/hda:
Model=HTS541080G9SA00,FwRev=MB4IC60R,SerialNo=MPBDPAXNHN02TM
Config={HardSectNotMFMHdSw>15uSecFixedDTR>10Mbs}
RawCHS=16383/16/63,TrkSize=0,SectSize=0,ECCbytes=4
BuffType=DualPortCache,BuffSize=7538kB,MaxMultSect=16,MultSect=16
CurCHS=16383/16/63,CurSects=16514064,LBA=yes,LBAsects=156301488
IORDY=on/off,tPIO={min:240,w/IORDY:120},tDMA={min:120,rec:120}
PIOmodes:pio0pio1pio2pio3pio4
DMAmodes:mdma0mdma1mdma2
UDMAmodes:udma0udma1udma2udma3udma4*udma5
AdvancedPM=yes:mode=0x80(128)WriteCache=enabled
Driveconformsto:ATA/ATAPI-7T131532Drevision1:ATA/ATAPI-2ATA/ATAPI-3ATA/ATAPI-4ATA/ATAPI-5ATA/ATAPI-6ATA/ATAPI-7
*signifiesthecurrentactivemode
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