> I was relieing on the ll_rw_block layer to correctly handle
> request merging and this was fine in 2.3.26. I would receive
> a single clustered request. In 2.3.39 I actually get two requests,
> one with the first block and a second with the remaining merged.
>
> Surely this isn't the intended effect. Comments?
Plugging appears to be broken for the scsi layer. I suspect its bust in 2.2
as well but 2.3.39 is getting the I/O out faster.
I have lots of raid folks bitching because they cant get nice 64K I/O's
from Linux which is what they all want (that or 128K I/O's). I think its
all related somewhere, but Im not a scsi layer guru
Alan
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