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Network Adapter throughput question

 
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cory1492



Joined: 10 Dec 2004
Posts: 216

PostPosted: Sun Apr 10, 2005 2:12 am    Post subject: Network Adapter throughput question Reply with quote

OK, I transferred a 2mb elf through ps2link today and it ran up to around 400k/s, although I am not entirely certain that is accurate.

Is the broadband adapter based on some odd standard or is it 10/100? Anyone know what the max throughput should be (I mean actual not theory/spec of course - even if it is only tested with the linux kit Id still like to know).

I know it depends on compression and other factors (like hardware bottlenecks), but I am still curious as to why currently available FTP apps are only getting up to around 110k/s if it is a true 10/100 connect.

I finally have a compiler working right under Gentoo flavored linux and really was just wondering hardware wise if it would be a waste of time to try and optimize ftpd for better speeds or if that has been done to its fullest already.
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PostPosted: Sun Apr 10, 2005 6:37 am    Post subject: Reply with quote

The broadband adapter can correctly negotiate 10/100Mb modes.

However, that has absolutely nothing to do with the throughput it can achieve.

Maximum throughput available to an application is purely a function of two things :

1. The efficiency of the underlying OS and its IP stack.
2. The amount of CPU power available in hardware.

The 33/36Mhz IOP is *not* going to go anywhere near 100Mb/s, even if it negotiated to that rate. You are lucky if you can even reach 10Mb/s.
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blackdroid



Joined: 17 Jan 2004
Posts: 564
Location: Sweden

PostPosted: Mon Apr 11, 2005 5:26 am    Post subject: Reply with quote

400KB/s is roughly what you get with current ps2ip, until someone steps up and shapes it up.
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