Okay I will try that too and let you know.
Thank you.
Jerome
----- Original Message -----
From: "Michael S. Tsirkin" <[EMAIL PROTECTED]>
To: "Roland Dreier" <[EMAIL PROTECTED]>
Cc: "Jerome Pioux" <[EMAIL PROTECTED]>; "Tom Duffy"
<[EMAIL PROTECTED]>; <[email protected]>
Sent: Monday, September 26, 2005 8:05 PM
Subject: Re: FW: SDP problems with 64K page size
Quoting r. Roland Dreier <[EMAIL PROTECTED]>:
Subject: Re: FW: SDP problems with 64K page size
Jerome> Just an open question: Do you think that we could get
Jerome> better performance if we would go with u32 instead of
Jerome> reducing the buffer to 16K?
Not sure. One easy test you could try would be increasing 16384 to
32768 in my patch.
I would replace 16384 with 4096 instead, and see whether the performance
decreases. Other approaches need changing more places.
If that works and improves performance, then
further increases would probably be worthwhile also.
My worry would be sign extention kicking in at this point,
since we are doing math on these numbers.
You could also try changing recv_size and send_size from u16 to s32 in
the declaration in sdp_conn.h.
Some other places need cleaning up for this to work.
BTW, I say all of this with only the vaguest understanding of the SDP
code base, so it might be complete nonsense.
- R.
--
MST
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