X-Surf 100 - Best TCP/IP for Speed?

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Ariandne with MNI gives 155,000 cps and 25% cpu.
X-Surf with SANA2 gives 170,000 cps and 15% cpu.

Is the difference DMA usage? it seems like a significant difference.

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This just tells me that AmigaOS need a new network driver infrastructure..

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It already has that in OS 4.1.

For classic OS that is

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The Amiga network drivers suffers from inefficient buffer handling scheme and proper support for promiscuous and multicast modes. On top of that there's some version requirement too.

It's a mess!

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Only working on some OS versions.

I just think it would be a serious improvement to get a clean and efficient API.

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What do you have in mind, specifically?

 * Option for DMA and various memory setups + bus types (zorro/pci)
 * Proper handling of promiscuous and multicast modes
 * Orthogonal command set. No "S2_MISC" + "EXTRAS_PROMISC" etc..
 * Options for offloading checksum calculations and verifying checksums
 * Support for all AmigaOS versions
 * Option for PPC/ARM/x86
 * Hardware agnostic as possible
 * Backwards compatible with AS225, SANA-II, MNI if possible (so one can use a network card with SANA-II driver with an application that requires MNI etc)

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You can't trust propietary stuff. Add to the mix the mandatory US goverment mandated backdoor.

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Case in point: If you can't inspect it - you can't trust it.

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Memory access and CPU cycles can also limit these things.

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20 Mbit/s on a local LAN seems slow.

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A speed tip is to use a network card built for 1 Gbit/s on a 100 Mbit/s network in order to maxout capacity. Or 10 Gbit/s on 1 Gbit/s network etc.

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I don't recall any 512 byte limit on IP packets in 1995. Perhaps for modem users, but certainly not for Ethernet connections routed to the backbone. I think this is a misunderstanding.

Anyway, looking at TCP traffic a packet limit at 1400 .. 1420 bytes could be worthwhile to try.

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The catch is that real life usage isn't laboratory conditions..

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It means one should try a variarity of situations to test. Even the Monty carlo method comes to mind.