ATI芯片在Linux里的磁盘性能太烂了

含笑半步跌

主板是MSI_RS480M2_7093

1. /dev/hda:
   
2. setting 32-bit IO_support flag to 3
   
3. setting multcount to 16
   
4. setting xfermode to 69 (UltraDMA mode5)
   
5. multcount    = 16 (on)
   
6. IO_support   =  3 (32-bit w/sync)
   
7. YSM:~# hdparm -tT /dev/hda
   
8. 
   
9. /dev/hda:
   
10. Timing cached reads:   2036 MB in  2.00 seconds = 1017.14 MB/sec
    
11. Timing buffered disk reads:    6 MB in  3.14 seconds =   1.91 MB/sec
    

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:comp :comp