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×÷Õß: hai_sss    •r(sh¨ª)ég: 2007-08-01 17:18
˜Ë(bi¨¡o)î}: Õˆ(q¨«ng)†–(w¨¨n)ÔÚAS4U2£¬´®¿ÚÓ²±P(p¨¢n)£¬Ôõô²ÅÄ܆¢„Ó(d¨°ng)DMA£¿
ÎÒÔÚAS4U2£¬´®¿ÚÓ²±P(p¨¢n)£¬œy(c¨¨)Ô‡ hdparm -t /dev/hdc
/dev/hdc:
Timing buffered disk reads:   18 MB in  3.22 seconds =   5.58 MB/sec
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×÷Õß: hai_sss    •r(sh¨ª)ég: 2007-08-01 17:29
[root@outside ~]# hdparm -d1 /dev/hdc

/dev/hdc:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma    =  0 (off)
×÷Õß: iorifreedom    •r(sh¨ª)ég: 2007-08-03 16:38
Èç¹û´®¿ÚÓ²±P(p¨¢n)£¬Ïµ½y(t¨¯ng)×R(sh¨ª)„ežé/dev/sdX£¬¶øÇÒhdparam²»ÄÜŒ¦(du¨¬)´®¿ÚÓ²±P(p¨¢n)ÔO(sh¨¨)Öã¬Òò?y¨¤n)é²»ÐèÒªÔO(sh¨¨)ÖÃ
×÷Õß: maluyao    •r(sh¨ª)ég: 2007-08-03 16:54
hdc Êǹâ±P(p¨¢n)°É?
×÷Õß: wheel    •r(sh¨ª)ég: 2007-08-13 14:25
hdparm  -Tt /dev/sda

/dev/sda:
Timing cached reads:   2892 MB in  2.00 seconds = 1446.26 MB/sec
Timing buffered disk reads:  218 MB in  3.01 seconds =  72.43 MB/sec

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