At some point back in time someone complained that the network (TCP/IP stack) on OS4 after some update was very slow.

That's just not true. I just tried to copy some large files over FTP from my A1-XE/933 with OS4.1.4 to a slow slaptop PC and I got 6.5MB/s using 68k(!) RC-FTPd as server on the A1. That's the same speed I have meassured for as long as I can remember on my A1.

At 6.5MB/s (about 60Mbit?) the CPU maxes out which is what I would expect. If someone gets much worse numbers it can be a number of reasons like:

1.
The router is misconfigured such that it sends local LAN traffic out to the speed-limiting gateway and back. I used to have this problem where I lived before. But after a while the switch I used "learned" the traffic path and bypassed the gateway letting data flow at full speed directly between the computers.

2.
Buffer configurations in a router or modem mismatches what RoadShow or the other peer has which causes oscillation/pumping in the TCP data flow. This completely kills the performance and you can see the speed jumping between hi and low.

_________________
>Amiga Classic and OS4 developer for OnyxSoft.
>A1-XE/G4, Radeon9250, Sweex 5.1, SII680
-Don't hesitate to contact me about my programs, but please use e-mail instead of PM. E-mails are more likely to be read in time, and easier for me to keep track of.

@Deniil715

I have low speeds compared to my asus laptop. All my x1000/laptop/PS3/Philips Streamium are connected to WNDR4000 router with statip IP inside LAN with ethernetcable. DHCP from the wall to the router, WAN i think its called. Ofcourse my mobilephone to Wifi (also static IP inside LAN).

For example when i do speedtests with x1000 on some speedpages (with OWB) i get mostly down 10mbit while i have 100mbit. On Laptop i get near 100mbit (bredbandstest). Bredbandtest dont work on amigas therefore i tried others. I dont know how reliable they are.

When i use FTP (pftp) to send files to my internet providers space (Bahnhof) i get max 3-400kb/sec while i have 10mbit upload connection. On Asus its much faster uploading with FTP (Filezilla win7), it goes up 10-13mb/sec.

I havent played around much with routers settings etc but they use same settings for all my devices inside LAN. All get static IP like 192.168.1.x. Even my mobilephone get high speeds :)

EDIT:

If i transfer amiga -> Laptop (inside LAN) and the other way the speed is good. On amiga i use pftd/pftp server/client and on the laptop filezilla both server and client.

I dont know if theres any good way to test download speed on amiga. Maybe you have a good example as i dont know if i can trust the result.

Last edited by Kicko on 13-May-2012 at 06:49 PM.
Last edited by Kicko on 13-May-2012 at 06:22 PM.

@Deniil715

I use smbfs 1.74 on my A1 to access a share on my linux box via a wired network. The speed it gets is pretty much what I'd expect for 100Mb LAN connection. Even my A1200 turns in a reasonable speed considering it's using a 10Mb PCMCIA connection.

The only time I've ever experienced unexpected slowness locally is with Windows devices attached wirelessly to the router.

_________________
IBrowse/AWeb user? amiga.org - classic browser edition

@Deniil715
The speed can depend on the software too. The speed tests at Testmy work on Amiga but most other sites use Flash for speed tests and don't work. When I test with OWB I get 2-2.5 Mbps but with MUI-OWB I get 4-4.5 Mbps. For anyone who has a PC and an Amiga it might be interresting to test speeds at the Testmy site to see how they compare.

_________________
SAM Flex 800MZ with 1GB memory & OS4.1u4

Thanks for the Testmy net link. I've always had problems getting an accurate picture of my Amiga network download speed.

Incidentally, I checked the download on my A1-X1000 against my Windows PC. The A1-X1000 under Linux Mint 11 (with the onbaord Ethernet) was (very) slightly faster. Although my local broadband suppler is not particularly fast.

The download test under AmigaOS 4 was the same speed.

TrevorD

_________________
AmigaONE X1000 "The real McCoy"

(Posted from Timberwolf Beta on the AmigONE X1000)

@Deniil715

Well, my program "NetSpeedometer" available from OS4Depot, is a bandwidth meter and it can be used also for benchmarks.
It would be interesting to compare speed results in a dedicated topic.

_________________
SAM440EP-FLEX @ 733 Mhz, AmigaOS 4.1 Update 1

@Kicko Quote:

I have low speeds compared to my asus laptop.

That is entirely expected, and not what is being discussed by Deniil!

The design of the Amiga's TCP/IP stack (inc all Amiga clones/flavours) has a lot of historical baggage that (without going into detail) means it is a lot slower than on other modern OSes. But what Deniil was discussing was that someone claimed an Update to OS4 caused their network speed to be much slower than it used to be.

Last edited by ChrisH on 14-May-2012 at 09:25 AM.
Last edited by ChrisH on 14-May-2012 at 09:24 AM.

_________________
Author of the PortablE programming language.
I love using Amiga OS4.1 on my A1-X1000 & Sam440
Don't forget the official support forum for OS4!

@Kicko

When you experice this slow speed, how much is the CPU load?

If the CPU load is 100% it means the TCP/IP stack is written in a very unefficient way and uses a lot of power to do very little. However, if the CPU is also low, it means there is a configuration issue with buffer settings or TCP windows or similar.

If you for example have an application that sends one byte at a time, and the TCP/IP stack doesn't buffer but sends one TCP packed for each single byte it will be very inefficient of course. Hard to know though, and probably not very likely that any app will do that for any larger data transfer.

RoadShow, or the X1000 network drivers may be unfavourably configured by default causing bad performance against certain devices. But if you have Bahnhof you have fiber in the house I suppose so there should not be any modem with a firmware speed limiter of any kind in between. Only a normal switch or router going full speed.

_________________
>Amiga Classic and OS4 developer for OnyxSoft.
>A1-XE/G4, Radeon9250, Sweex 5.1, SII680
-Don't hesitate to contact me about my programs, but please use e-mail instead of PM. E-mails are more likely to be read in time, and easier for me to keep track of.

@Deniil715

Quote:

Deniil715 wrote: At some point back in time someone complained that the network (TCP/IP stack) on OS4 after some update was very slow.

Hmmm, may've been me. Back when I was on dial-up, OS4 had a terrible time. It was slow, and would often drop the line. By comparion, my A1200 with Miami was much faster and had no problems. I even tried the same jack, same cable, same modem connected to my A1200 on the A1, but it was just as bad.

I eventually got broadband and the stack is pretty good (the browsers have stability issues :( ). At the time, dial-up was my only option. I don't know if it was the stack, or the parallel port, or what, but trying to get the A1 to work well was one of the most frustrating experiences of my computing life (including Windows).

Another user agreed with me, and noted something about Roadshow being better on an older version of OS4.

I must underscore this was dial-up that was causing me grief. The A1 on broadband has been a pleasure to use.

_________________
---------------
AmigaOne G4 800mhz, OS 4.1
A1200T 68040 OS 3.9

@Deniil715

I don't know if you're refering to me but I did "complain" or rather state how I experience the network speed over internet with different software. FTP has been at the speed that you say since update 4 for AOS 4.0 IIRC, however when it comes to downloading using a browser or torrent it doesn't get anywhere near the speeds on my other computers (a PC using Windows 8/Linux and my PowerMac using MacOS X 10.5.8). AFAIHS this is the same for everyone and if it happens even on the X1000 something isn't right? Not being too technical but the X1000 should be faster than my PowerMac.

Would be interesting to do some tests with Linux on the X1000 and compare using Firefox, Chromium or whatever.

I also got 100Mbit and on the PC it isn't rare to see download speeds of 5-10MB/s when downloading files using Firefox and I believe the same can be said about the PowerMac.

@daveyw

The dial-up driver or whatever had probably not been tested, developed and fine-tuned as much as the ethernet driver I suppose.

I went fiber LAN a few years before the A1 and OS4 were released.

@hotrod

Downloading through IBrowse has always worked fine on the A1200, similar speeds as FTP. Haven't done much such downloads using a browser on OS4 that I can say this or that though.

However, from the TCP/IP's (RoadShow's) point of view there is no difference if it is FTP or HTTP data going over the socket. So the only thing I can think of here is that the probsers implement their data transfers a lot less efficiently, perhaps using much smaller buffer, updating the GUI more often or whatever. But as I said, on the A1200 I noticed little difference between IBrowse and FTP.

Torrent did suck a lot, until they stopped working 5 years ago and consequently sucked infinitly hard, but there were occasions when I got several MB/s over amitorrent, but only when I downloaded something very popular with many seeders.

Last edited by Deniil715 on 14-May-2012 at 01:43 PM.

_________________
>Amiga Classic and OS4 developer for OnyxSoft.
>A1-XE/G4, Radeon9250, Sweex 5.1, SII680
-Don't hesitate to contact me about my programs, but please use e-mail instead of PM. E-mails are more likely to be read in time, and easier for me to keep track of.

@Deniil715

I get about 6-7MB/s with FTP and with IBrowse I think it's slightly over 2MB/s and with muiowb it's about 1.3MB/s and this is if I test a fast site like for example sunet. I think that this is also true if you use the FTP protocol in browsers, that won't make a difference (has been a while since I tried so going from my poor memory).

When I used my old a4k I had only ADSL 0.5Mbit and with that kind of speed you won't notice any slowdowns. When used localy I got 600-700kb/s with a 10Mbit networkcard (Zorro-III) and 800-900kb/s with a 100Mbit PCI networkcards using Genesis TCP/IP-stack, Miami Dx was slower. This was using FTP and local network (100Mbit) and the speed was limited by the hardware.

With some early beta of AOS 4 and early etherent drivers I got about 6-7MB/s when using FTP over a local network but when downloading something over internet (10Mbit) I got about 150kb/s back then so it has been improved a lot since then. So for some reason FTP has always been fast.

This is what I've found so far but I haven't tweaked any settings regarding Roadshow. The speed has been improved a lot over time and I think that it got faster with 4.1 upd 3 as well when downloading from browsers.

Using IBrowse I get about 2MB/s and that is what I've gotten using a popular torrent too and transmissioncli while on the PC the same torrent will download at about 5-10MB/s and the same is true for MacOS X.

It's never been a complaint but rather what I've noticed. I can live with 2MB/s, I rarely download huge files on the Amiga so to me it isn't a big issue but I do find it interesting.

@Deniil715

The maxium I have got is about 2MB/s and I can't break it. This is an FTP transfer from my old Mac to my A1. It's a G3 iBook. I also have tried a PC which would have 100Mbit but still no speed increase.

There were some tweaks posted a while back that I applied but I didn't see much of a change that I recall.

@Kicko

I wonder if this because modern devices would be using UPnP to open up ports? I wouldn't expect Amiga software to do that unless they used some kind of upnp library.

Of course, this only matters on the outside world. On the inside within the LAN the router should allow the machines access to each others ports unless not told too.

@daveyw

An Amiga friend had this exact problem you describe prior to shifting to broadband last year. Infact it was so bad that he worked out how to drop Roadshow and hack Miami back into the system. His dial up then ran fine. Unfortunately OS4 software like iBrowse and modern browsers refused to work because they needed the OS4 TCP/IP stack.

Now, given Miami was okay, this would indicate the serial driver was okay and put the blame on Roadhow.

Hostorcally Roadshow has had bugs. Such as being unable to shut down the network. And needing to reset because of an unplugged cable due to the last sitution.

I tried the testmy.net and i got highest download 2.8Mbps. Often lower. For upload i got highest 1.4Mbit. As said i have 100/10mbit connection and i have a splitter in the wall for fibre connection. I can choose many providers but i run Bahnhof as its fast and cheap. The router is then connected to the splitter. As said my Laptop does get almost full speed.

For the cpu load i dont know what app to try with. But i use my practical sense. While uploading file to bahnhof ftp i try to run owb and surf pages and its really fast so my cpu isnt near anything full :)

Dont know what it is. Maybe i need to set something in the router config.

EDIT:
I tried putting the x1000 under DMZ server but that didnt help.
Samo for port forwarding for FTP with my 192.168.1.10 (x1000). Didnt help.

Netspeedometer showed mostly between 200-500kbps. Mostly in the middle. Max was 540kbps. pftp shows around 200-400kbps.

Last edited by Kicko on 14-May-2012 at 09:16 PM.
Last edited by Kicko on 14-May-2012 at 09:10 PM.

@Kicko

Just for info, I got the same as you, Bahnhof 100/10. I got a D-link DIR-655 which all computers are connected to so no difference other than hardware and OS. Just visited ftp.sunet.se on both IBrowse and muiowb and the speed is the same as for any other site. With AmiFTP or pFTP I get 6-7MB/s if downloaded to RAM: