Couple of problems with speed

reeo · Post by **reeo** » Sun Oct 05, 2003 11:01 pm

First of all here is my settings with Cable nut & SG tweak for widows ME, 512 DDR ram and 1 gig Athlon.

TCP properties for IP = 68.x.xxx.xxx ()
Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows 98; Win 9x 4.90; T312461; Cox High Speed Internet Customer)
Notes: Read the Analyzer FAQ if the above is not your IP address.

TCP options string = 020405b40103030201010402
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)
bandwidth * delay product:

Your RcvWindow limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 54 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000

The last couple of weeks I've had a problem on a couple of forums. It's like I'm on a 14.4 and it drags to a crawl or stops on some forums. It opens up the address but hangs inbetween threads. Recently I switched to IE 6 but it allready was having problems with IE 5.5. I think it is worse with 6 but hard to say. I just checked speed at speakeasy with a 2942/215. You couldn't tell it was any where near that speed. I had a couple of glitches here but overall it is fast here. I'm just talking out loud and wondering if anyone has any ideas. Thanks for any suggestions.

reeo

mccoffee · Post by **mccoffee** » Sun Oct 05, 2003 11:56 pm

Who is ur provider??

reeo · Post by **reeo** » Mon Oct 06, 2003 1:13 am

Thanks for the reply, Cox Cable.

mccoffee · Post by **mccoffee** » Mon Oct 06, 2003 9:23 am

Try the following in cablenut apply changes and reboot

BcastNameQueryCount - 1
BcastQueryTimeout - 100
BSDUrgent - 1
CacheTimeout - 600000
DefaultRecvWindow 64240
DefaultTTL - 64
EnableDNS - 0
GlobalMaxTcpWindoSize64240
KeepAliveInterval - 500
KeepAliveTime - 14400000
Lanabase - 0
LocalCopyMade - 1
MaxConnections - 64
MaxConnectRetries - 5
MaxDataRetries - 99
NameTableSize - 255
NameSrvQueryTimeout - 100
PMTUBlackHoleDetect - 0
PMTUDiscovery - 1
RoutingBufSize - 146432
RoutingPackets - 100
SackOpts - 1
SessionKeepAlive - 7200
SessionTableSize -255
Size/Small/Medium/Large - 3
Tcp1323Opts - 0
TcpTimedWaitDelay - 30
MaxDupAcks - 3
DefaultTOS - 92
IGMPLevel - 2
MaxConnectionsPer1_0Server - 20
MaxConnectionsPerServer - 10

reeo · Post by **reeo** » Mon Oct 06, 2003 3:30 pm

Wow, that was a few changes. Most of those items had blanks before. I think overall that has helped. The forums that were extremely slow are still slow but not quite as bad. It doesn't seem to hang in between pages as bad. I'll leave it this way, time being, unless you have settings I could experiment with.

I noticed the defaultRcvwindow changed big time. Is that the norm now, to keep that number lower?

Thanks, Rod

mccoffee · Post by **mccoffee** » Mon Oct 06, 2003 4:21 pm

you want to keep that rwin number low to mid but it all is based off of latency.

In interent Explorer low to fix hang time goto tools internet options, connections and make sure noting is checked

Also try this in regedit For 98, 98SE & ME

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic
es\VxD\MSTCP\ServiceProvider

On the right for ALL OS's change these entries: (ALL values are HEXIDECIMAL)

Class - 1
DnsPriority - 1
HostsPriority - 1
LocalPriority - 1
NetbtPriority - 1

reeo · Post by **reeo** » Mon Oct 06, 2003 5:46 pm

There are not any checks in IE under connections. My settings have remained the same for months untill now. I can find the reg key no problem. However I'm not familiar with HEXIDECIMAL, sorry. I did a search on Google and it gives some insight but not enough from what I've read to change numbers. Is there a good site to explaain how ths works? For instance in the registry it has this shown for class 08 00 00 00 or DnsPriority d0 07 00 00. What number or how is that changed if I give it a 1 value? I'll make a backup on that change but I'd like to know a little more before a change.

Thanks for your help, maybe I can get this back up to operating speed again.

reeo

mccoffee · Post by **mccoffee** » Mon Oct 06, 2003 6:47 pm

I hope this what you wanted

To change the value right mouse click on the value and select modify and enter the values above once you have done all of them reboot to take effect and see how fast your pages load.

For 98 & ME they should all look like:

01 00 00 00

reeo · Post by **reeo** » Mon Oct 06, 2003 9:32 pm

Yes, that is what I was after. I changed them all to 01 00 00 00. It must be ok I still have a connection! It seems to work pretty good. So Now I could experiment with the Rcv window to see if it gets better or worst? It's been a while, what is the best way to check latency. I was thinking PC Pitstop had a test, or is there specific numbers if I ran ping or tracert? I'm thinking what I have is a lot better. I'll know more during busy times tommorrow.
Thanks a lot for your time.

reeo

mnosteele52 · Post by **mnosteele52** » Mon Oct 06, 2003 9:34 pm

Follow this link to find your max latency.

reeo · Post by **reeo** » Mon Oct 06, 2003 11:57 pm

Thanks for the link. My highest latency was 220 during a download. I see it said to use the calculator, but I can't find the calculator, sorry. Where is it, or am I just blind? LOL I think I can follow the other instructions.
Thanks again,

reeo

mccoffee · Post by **mccoffee** » Tue Oct 07, 2003 7:01 am

OK I did ur rwin for you I used 200 instead of 220 where that 64240 is in cablenut try 74460

example of mine)

TcpReceiveWindow (RWIN) Formula

(Maximum Bandwidth x Maximum Anticipated Latency) / 8

Example of my connection with a 3000 download cap with a maximum latency of 100 ms:

(3000 x 100) / 8 = 37500 To make it a multiple of MSS divide by 1460:

37500 / 1460 = 25.68 Then round up to the nearest even whole number:

26 x 1460 = 37960 - my RWIN

reeo · Post by **reeo** » Sun Oct 12, 2003 11:39 pm

Thanks for the example. I've worked with a couple of settings but it seems about the same. I think I'm going to live with the fact some sites must have problems. I can be a somewhere when I know there is light traffic. It still gets hung up on or between pages. Frustrating but that's life. Others seem to be having problems also but not all by any means. Thanks for your help, I appreciate it.

reeo