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sata silicon image 3114 has a bad performance. what's wrong?
i use a bamboo board(ppc44ep).
i use sil3114 sata controller and hitachi hdd.
if i use pci external arbiter, the hdd performance is bad.
(test hdparm, speed is about 14M~15M)
But if i use pci internal arbiter, the hdd performance is good
speed is about 45~50MB
all kernel is same, version 2.6.19, 2.6.21
what is wrong? why speed is different?
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