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Why is the ps2sdk network driver so slow?

 
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cosmito



Joined: 04 Mar 2007
Posts: 314
Location: Portugal

PostPosted: Sat Apr 19, 2008 11:24 pm    Post subject: Why is the ps2sdk network driver so slow? Reply with quote

I was wondering about the low speed transfers archived with the ps2sdk network driver. Is it due to the clock speed of the IOP, or is there other additional reason?
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Lukasz



Joined: 19 Jan 2004
Posts: 248
Location: Denmark

PostPosted: Sun Apr 20, 2008 5:12 pm    Post subject: Re: Why is the ps2sdk network driver so slow? Reply with quote

ptek wrote:
I was wondering about the low speed transfers archived with the ps2sdk network driver. Is it due to the clock speed of the IOP, or is there other additional reason?


I'v never really worked with the ps2sdk network code, but I remember being told that the design of some parts of the IOP network code are less than optimal. Partly because of limitations with compatability between the IOP and some of the network code which was ported from other projects. Another reason being that the smap code from the PS2Linux runs on the EE and was then ported to the IOP "quickly". I'm sure the smap driver can be greatly improved, if one took the time to do so :-)

I know the ps2devman worked on a new network adapter (smap) driver - http://forums.ps2dev.org/viewtopic.php?t=6784 . Cody56 (USBD driver author) was (is?) also working on an unreleased smap driver, he told me over IRC that he got a 10x speedup in raw transfer speed, compare to the current driver.
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