Re: Fixing the SCSI layer

[Marc SCHAEFER]

Mark Veteikis <[EMAIL PROTECTED]> wrote:
> Besides, cleaning up the code, has anyone identified specific performance 
> problems that need to be fixed in the SCSI mid-layer? For some reason the 
> Interphase FC adapter is topping out at ~72MB/s on sequential reads, 
> this seems rather low, knowing that we can get 90+ with identical hardware 
> under NT.

DId you try with the benchio raw benchmark (available on sunsite). benchio
just sends commands from a fixed-size 64k buffer, read and write, directly
to the first low-level SCSI host adapter (through queuecommand()) and
the first disk.

This can be used to evaluate top raw performance. Nothing else.


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