Blako Posted March 16, 2005 CID Share Posted March 16, 2005 I understand all the lingo but cant find it in my Registry, I looked in; HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpipParameters and cant find something to change my Receive Window or my Window Scaling. Receive Window (RWIN): 65535 Window Scaling: off Path MTU Discovery: OFF RFC1323 Window Scaling: OFF RFC1323 Time Stamping: OFF Selective Acks: ON MSS requested: 1460 TTL: unknown TTL remaining: 109 http://ttester.broadbandreports.com/tweak/block:5185dfe?service=cable&speed=4000&os=win2k&via=normal Quote Link to comment Share on other sites More sharing options...
VanBuren Posted March 16, 2005 CID Share Posted March 16, 2005 download cablenut, thats all you need to edit the registry here is all the definitions http://www.dslnuts.com/2kxp.shtml VanBuren Quote Link to comment Share on other sites More sharing options...
cholla Posted March 16, 2005 CID Share Posted March 16, 2005 Hey Blako : Like Van Buren said Cablenut will make the settings in your registry.I did notice it used a different RWIN than yours.Since the broadband test said yours is in good range maybe you should use that one or try the cablenut to see if it works better & put your old one back if it doesn't.If you still want to find these in your registry Use the registry find It should be in the edit pulldown.Type in DefaultReceiveWindow then select find.Do the same with GlobalMaxTCPWindowSize. I have Windows ME but I bet your 2000 registry has a simular find function.Then you can decide if you need to do anything with them. Cholla Quote Link to comment Share on other sites More sharing options...
Blako Posted March 17, 2005 Author CID Share Posted March 17, 2005 Okay, I downloaded Cablenut and VanBurens cablenut setting version 6. Should I round up or round down to the closest setting? Quote Link to comment Share on other sites More sharing options...
cholla Posted March 17, 2005 CID Share Posted March 17, 2005 Hey Blako: I would try it like it is first to see how it worked on your OS.Then if you don't like it try your old RWIN setting to see how it does.DefaultReceiveWindow &GlobalMaxTCPWindowSize are the RWIN settings.Use the CCS file that is closest to your connection.If you have problems Van Buren can do a custom one for you.Vans the real expert on Cablenut. Cholla Quote Link to comment Share on other sites More sharing options...
Blako Posted March 17, 2005 Author CID Share Posted March 17, 2005 My burst speed has jumped but my average speed has not changed. Quote Link to comment Share on other sites More sharing options...
Blako Posted March 17, 2005 Author CID Share Posted March 17, 2005 Do you normaly have a "jumpy" load bar with a large RWIN? Does a Larger recive window put a larger load on a wimpy 730Mhz cpu? Quote Link to comment Share on other sites More sharing options...
xs1 Posted March 17, 2005 CID Share Posted March 17, 2005 Mines extremely "jumpy"...almost annoyingly so..but the results still come out accurate most of the time. Quote Link to comment Share on other sites More sharing options...
cholla Posted March 17, 2005 CID Share Posted March 17, 2005 Hey Blako: I'm not the expert here Van Buren is but he's offline so try this.Go to this site run their TCP Analyzer.It link is on the left of their page about middle.select this it will run automatically.It will tell you what MTU & MSS your OS is using It will tell you what RWIN tou are using & give you a list of multiples of MSS try these to see if it helps.Larger to smaller until you get the smoother operation you are after.I beleive your MTU should be 1500 & MSS 1460.Also I am not sure about windows 2000 but on 98 & ME windows scaling needs to be enabled on RWIN larger than 65535 in Cablenut this would be TCP1323Opts set at 1 . this is the link: https://www.speedguide.net/ Quote Link to comment Share on other sites More sharing options...
Blako Posted March 17, 2005 Author CID Share Posted March 17, 2005 Another Question for Van, In cablenut tweak screen: DefaultReceiveWindow .......= 549888 GlobalMaxTcpWindowSize = 124100 TcpWindowSize...................= 124100 TCP1323Opts.......................= 1 These are VanBurens preset setting for 4000/512 found in cablenut verson 6 Both dslreports.com/tweaks and speedguide.net/analyzer report my RWIN: 124100 I know that what you (Cholla) said on MTU & MSS is correct and I have those settings. Are you saying the "TCP1323Opts" is the scale "multiplier"? Okay, Van... How do I set my personal RWIN using Cablenut? Quote Link to comment Share on other sites More sharing options...
cholla Posted March 17, 2005 CID Share Posted March 17, 2005 Hey Blako: I'm not sure if it is called the multiplier .If set to 0 windows 98&ME Automatically limit the max RWIN to 65535. I'm not sure about windows 2000.If you set it to 1 then the windows will scale.There is also a ms update that is necessary for 98 to do this but it probably isn't nessary for 2000.Did you try the TCP analyzer here: https://www.speedguide.net/ it shold tell you if your scaling is working.In its RWIN area. These are the 3 RWIN settings in Cablenut set your personal ones there to what you want then use the"save to registry "button at the bottom of the Cablenut adjuster. DefaultReceiveWindow .......= GlobalMaxTcpWindowSize = TcpWindowSize...................= your settings here are different I beleive they should both be the same.The TCP analyzer has RWIN suggestions based on your MSS.You might try these to see if they perform better. It should show what your rwin scales to & the number of times it scales.Post again after trying this . Cholla Quote Link to comment Share on other sites More sharing options...
VanBuren Posted March 17, 2005 CID Share Posted March 17, 2005 Another Question for Van, In cablenut tweak screen: DefaultReceiveWindow .......= 549888 GlobalMaxTcpWindowSize = 124100 TcpWindowSize...................= 124100 TCP1323Opts.......................= 1 These are VanBurens preset setting for 4000/512 found in cablenut verson 6 Both dslreports.com/tweaks and speedguide.net/analyzer report my RWIN: 124100 I know that what you (Cholla) said on MTU & MSS is correct and I have those settings. Are you saying the "TCP1323Opts" is the scale "multiplier"? Okay, Van... How do I set my personal RWIN using Cablenut? with windows 2k and XP sp 1 the tweaktester will read TcpWindowsize and with XP SP2 it will read DefaultReceivewindow to make personal settings i suggest to test this http://j79zlr.com/cablenutXP2k.php and use the Defenitions link in my previous post VanBuren Quote Link to comment Share on other sites More sharing options...
Blako Posted March 18, 2005 Author CID Share Posted March 18, 2005 I used cablenut on my slower computer because my dad needs a fully fuctioning computer to do his audio recordings and studio mixing. I am going (physicaly) slow today because my wisdom teeth got pulled out 2 hours after Van's last post....Hold on, my mouth is filling with blood...Ok better. I think that one of the other settings that cablenut changes is making problems for me. On all the tests post-cablenut, the test pauses for 2-4 seconds during testing and I have been geting scores such as 2500Kbps rather then 4000Kbps. Only once did the test go perfect and I noticed a 10% increase as I hit 4400Kbps. I will be back to post my tweeked settings from the other computer. I read up on the defiitions Van posted and its kinda fun in a brain twisting way. Um, Van, what are the pros and cons for having the recive window larger then the Tcpwindow? At the tweeked computer is 730Mhz and the cpu load is substantial during testing. Thanks guys for the info. Type to ya later Quote Link to comment Share on other sites More sharing options...
Blako Posted March 18, 2005 Author CID Share Posted March 18, 2005 From SpeedGuide.net MTU = 1500 MTU is fully optimized for broadband. MSS = 1460 Maximum useful data in each packet = 1460, which equals MSS. Default Receive Window (RWIN) = 256960 RWIN Scaling (RFC1323) = 2 bits (scale factor of 4) Unscaled Receive Window = 64240 RWIN is a multiple of MSS Other values for RWIN that might work well with your current MTU/MSS: 513920 (MSS x 44 * scale factor of 8 ) 128480 (MSS x 44 * scale factor of 2 ) 64240 (MSS x 44) Quote Link to comment Share on other sites More sharing options...
Blako Posted March 18, 2005 Author CID Share Posted March 18, 2005 From SpeedGuide.net MTU = 1500 MTU is fully optimized for broadband. MSS = 1460 Maximum useful data in each packet = 1460, which equals MSS. Default Receive Window (RWIN) = 128480 RWIN Scaling (RFC1323) = 1 bits (scale factor of 2) Unscaled Receive Window = 64240 RWIN is a multiple of MSS Other values for RWIN that might work well with your current MTU/MSS: 513920 (MSS x 44 * scale factor of 8 ) 256960 (MSS x 44 * scale factor of 4 ) 64240 (MSS x 44) Quote Link to comment Share on other sites More sharing options...
cholla Posted March 18, 2005 CID Share Posted March 18, 2005 Hey Blako:it looks like the smaller window had less delay.This is the info I wanted to see: Default Receive Window (RWIN) = 128480 RWIN Scaling (RFC1323) = 1 bits (scale factor of 2) Unscaled Receive Window = 64240 It shows your OS scaled 1 time& your unscaled window is 64240 this should be correct. You might try 64240 as your RWIN & turn off scaling like this:Tcp13230ps=0 See if this works better for your OS with no delay.If this causes a slowdown because of the smaller RWIN you can change it back.This would only be slightly smaller than the RWIN you started with 65535 before tweaking.The difference is 64240 is a multiple of your MSS.this is where you should get better performance because thie matches packet size.Less or no resizing & fewer retransmits. Cholla Quote Link to comment Share on other sites More sharing options...
VanBuren Posted March 18, 2005 CID Share Posted March 18, 2005 Okay, I downloaded Cablenut and VanBurens cablenut setting version 6. Should I round up or round down to the closest setting? i suggest you try the 4000 384 file first and then try 3000 384 and then 5000 384 and compare what work best for you VanBuren Quote Link to comment Share on other sites More sharing options...
Blako Posted March 18, 2005 Author CID Share Posted March 18, 2005 Test of Van's Cablenut Settings All tests done with 2992KB unless otherwise noted Cablenut 3000/384 2754 Kbps 2924 Kbps 3748 Kbps 3182 Kbps 3150 Kbps AVERAGE = 3151Kbps Cablenut 4000/384 3343 Kbps 4287 Kbps 4442 Kbps 5897 Kbps 4103 Kbps via 5983KB 2804 Kbps AVERAGE = 3462 Kbps Cablenut 5000/384 2353 Kbps 3307 Kbps 3367 Kbps 4557 Kbps 3476 Kbps AVERAGE = 3412 Kbps My 30 day average is 3800Kbps down, also see my sig. Quote Link to comment Share on other sites More sharing options...
VanBuren Posted March 19, 2005 CID Share Posted March 19, 2005 if you have a router, bypass it and connect PC direct to modem via ethernet use the 4000 384 file and test again VanBuren Quote Link to comment Share on other sites More sharing options...
Blako Posted March 19, 2005 Author CID Share Posted March 19, 2005 730Mhz Celeron processor using Cablenut 4000/384 Router vs. Direct connect With router in Kbps: 3476 & 2442 & 3056 & 2595 & 2260 & 2162 & 2966 & 3885 & 2392 & 3993 WITH ROUTER AVERAGE = 2923Kbps Direct Connect to Modem in Kbps: 2329 & 3663 & 2235 & 2462 & 5141 & 3476 & 4466 & 2584 & 2753 DIRECT CONNECT AVERAGE = 3234Kbps Quote Link to comment Share on other sites More sharing options...
VanBuren Posted March 19, 2005 CID Share Posted March 19, 2005 set your NIC to 10 Mbps half duplex when connecting direct to modem, and set your NIC to 100 Mbps full duplex when your using a router VanBuren Quote Link to comment Share on other sites More sharing options...
Blako Posted March 21, 2005 Author CID Share Posted March 21, 2005 Full duplex has never worked for me. The tests take forever to load. :::.. Download Stats ..::: Connection is:: 11266 Kbps about 11.3 Mbps (tested with 12160 kB) Download Speed is:: 1375 kB/s Tested From:: http://www.testmy.net/ Test Time:: Sun Mar 20 17:05:07 PST 2005 Bottom Line:: 201X faster than 56K 1MB download in 0.74 sec Diagnosis: Awesome! 20% + : 312.52 % faster than the average for host (adelphia.net) Validation Link:: https://testmy.net/stats/id-E1PQH0G42 :::.. Download Stats ..::: Connection is:: 7428 Kbps about 7.4 Mbps (tested with 5983 kB) Download Speed is:: 907 kB/s Tested From:: http://www.testmy.net/ Test Time:: Sun Mar 20 17:03:00 PST 2005 Bottom Line:: 133X faster than 56K 1MB download in 1.13 sec Diagnosis: Awesome! 20% + : 171.99 % faster than the average for host (adelphia.net) Validation Link:: https://testmy.net/stats/id-Y79DVWAES Quote Link to comment Share on other sites More sharing options...
VanBuren Posted March 21, 2005 CID Share Posted March 21, 2005 nice speed VanBuren Quote Link to comment Share on other sites More sharing options...
Blako Posted March 22, 2005 Author CID Share Posted March 22, 2005 Its not real. Im caped at 4.7Mbps and the tests took 2 min to load! Quote Link to comment Share on other sites More sharing options...
php Posted March 22, 2005 CID Share Posted March 22, 2005 how did you get those results? refresh or back button, or what? Quote Link to comment Share on other sites More sharing options...
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