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mrproper

Help with my RWIN

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you should be able to get over 4.5Mbps with out a problem, and you are on a 5983kb file but not on a larger one. clear your cache and try this one http://www.testmy.net/tools/test/d_load.php?step1_timed=&step1_size=&step1_validation=&testall=&s=5983&st=st&ni=ni&ta=&top=&tt=1&nobar= then clear your cache and try this one http://www.testmy.net/tools/test/d_load.php?step1_timed=&step1_size=&step1_validation=&testall=&s=12160&st=st&ni=ni&ta=&top=&tt=1&nobar=

dlewis23 !! You are right. I have cleared cache an these are the results:

First test you linked me:

:::.. Download Stats ..:::

Download Connection is:: 6103 Kbps about 6.1 Mbps (tested with 5983 kB)

Download Speed is:: 745 kB/s

Tested From:: https://testmy.net/ (Server 1)

Test Time:: 2006/08/15 - 8:23am

Bottom Line:: 106X faster than 56K 1MB Download in 1.37 sec

Tested from a 5983 kB file and took 8.031 seconds to complete

Download Diagnosis:: Awesome! 20% + : 95.8 % faster than the average for host (189.159)

D-Validation Link:: https://testmy.net/stats/id-5K74NEUFQ

And the second one:

:::.. Download Stats ..:::

Download Connection is:: 5208 Kbps about 5.21 Mbps (tested with 12160 kB)

Download Speed is:: 636 kB/s

Tested From:: https://testmy.net/ (Server 1)

Test Time:: 2006/08/15 - 8:24am

Bottom Line:: 91X faster than 56K 1MB Download in 1.61 sec

Tested from a 12160 kB file and took 19.125 seconds to complete

Download Diagnosis:: Awesome! 20% + : 65.07 % faster than the average for host (189.159)

D-Validation Link:: https://testmy.net/stats/id-I2XTARQPF

I have cleared cache again and I have tested with a larger file (20972 KB):

:::.. Download Stats ..:::

Download Connection is:: 4437 Kbps about 4.44 Mbps (tested with 20972 kB)

Download Speed is:: 542 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 8:29am

Bottom Line:: 77X faster than 56K 1MB Download in 1.89 sec

Tested from a 20972 kB file and took 38.719 seconds to complete

Download Diagnosis:: Awesome! 20% + : 39.57 % faster than the average for host (189.159)

D-Validation Link:: https://testmy.net/stats/id-LWR0AJ6V2

I don't know if the results are temporal, that is to say, if I do them again perhaps I get half speed. But you are totally right.

Have you read all the posts? I have only changed 2 parameters !! But I think I can change more. I am waiting for cholla who told me to change some values more. I don't dare to do it on my own. I prefer his instructions although your help and ideas are welcome !!

What is your opinion? Do you agrre with cholla or do you have your own (and different ideas)?

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dlewis23 ;Here are acouple of articles I found on ADSL using MTU 1500.I didn't find the one I had gotten the information from earlier.I will look some for more if you want me too,

Use your edit/find for MTU

http://www.usr.com/support/9108/9108-ug/wui_internet.htm#option1

Authentication method is default to Automatic. It is recommended that you leave the

Authentication method in Automatic, however, you may select PAP or CHAP if necessary.

The default value for MTU (Maximum Transmission Unit) is 1500 for PPPoA and 1492 for PPPoE.

Do not change these values unless your ISP asks you to.

http://forums.whirlpool.net.au/index.cfm?a=wiki&tag=ADSL_Theory_PPP

Point to Point Protocol (PPP) is, as it's name suggests, a protocol for establishing a link

between two points. In the case of ADSL it's between your modem or PC to our BRAS

(Broadband Remote Access Server - the PPP server). PPP isn't technically required for an

ADSL connection, the internet could run straight over the ADSL's ATM network. PPP is used on

most of ADSL connection because of the legacy of dialup; an authorisation/accounting system

is needed and PPP is the defacto standard.

PPP can be run in two different ways and the preferred style is dependant on your ISPs set

up. PPPoE is best if they run an ethernet link between the DSLAM and BRAS, PPPoA is better

if they are running an ATM network between the DSLAM and BRAS.

Why the difference? Maximum Transmissable Unit (MTU) is the largest individual data packet

that can be sent over a network, in the case of Ethernet it's 1500, in the case of ATM it's

not limited. What this means is that as the packet passes from ADSL to Ethernet is can

exceed Ethernet's MTU and be dropped. By forcing PPPoE your modem forces the packets to stay

with in Ethernet's 1500 MTU limit. That said PPPoA is marginally more effiecient with

overheads and processing by both ends.

ADSL - Asyncronous Digital Subscriber Line - what this is all about

ATM - Asyncronous Transfer Mode - a network protocol used by ADSL

PPPOA - Point-to-Point Protocol Over ATM

PPPOE - Point-to-Point Protocol Over Ethernet

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mrproper;Those settings are a starting point.I want you to try these in CableNut.I think you have a couple the way you want them but I'm putting them in to make sure.Give these a try .remember to restart after "save to the registry "in Cablenut.

DefaultReceiveWindow =  16384           

DefaultSendWindow    =  16384

TcpWindowSize        =  17520

GlobalMaxTcpWindowSize= 17520

TcpRecvSegmentSize  =  1460 

TcpSendSegmentSize  =  1460

DefaultTOSValue          =          0

DefaultTTL                  =      128

EnablePMTUDiscovery  =        0

Then check with the TCPIP Analyzer to mak sure its reading the new RWIN & That it detactes the MTU as 1500.

Then come to testmy .Clear your cache & test.

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I have made all your changes, rebooted and made tcp analizer test. I paste you this last screen so that you can see the recommendations they do.

I have cleared cache at each speed test. I paste you the results for a 7,3 Mb file (twice) and for a 20,5 Mb file (once).

The tests have been made against a server in USA. If I should do them against another one closer to me, let me know.

Very bad results. Perhaps the server is very busy or your local time or my local time is busy.

[glow=red,2,300]7,3 Mb file[/glow]

:::.. Download Stats ..:::

Download Connection is:: 558 Kbps about 0.56 Mbps (tested with 7458 kB)

Download Speed is:: 68 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 4:25pm

Bottom Line:: 10X faster than 56K 1MB Download in 15.06 sec

Tested from a 7458 kB file and took 109.579 seconds to complete

Download Diagnosis:: May need help : running at only 18.97 % of your hosts average (189.159)

D-Validation Link:: https://testmy.net/stats/id-MA17E96LN

:::.. Download Stats ..:::

Download Connection is:: 552 Kbps about 0.55 Mbps (tested with 7458 kB)

Download Speed is:: 67 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 4:27pm

Bottom Line:: 10X faster than 56K 1MB Download in 15.28 sec

Tested from a 7458 kB file and took 110.656 seconds to complete

Download Diagnosis:: May need help : running at only 19 % of your hosts average (189.159)

D-Validation Link:: https://testmy.net/stats/id-TC2OLXI7V

[glow=red,2,300]20,5 Mb file[/glow]

:::.. Download Stats ..:::

Download Connection is:: 552 Kbps about 0.55 Mbps (tested with 20972 kB)

Download Speed is:: 67 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 4:33pm

Bottom Line:: 10X faster than 56K 1MB Download in 15.28 sec

Tested from a 20972 kB file and took 311.39 seconds to complete

Download Diagnosis:: May need help : running at only 19.22 % of your hosts average (189.159)

D-Validation Link:: https://testmy.net/stats/id-QACP4K8UG

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[glow=red,2,300]Hispasoft:[/glow]

:::.. Download Stats ..:::

Download Connection is:: 1212 Kbps about 1.21 Mbps (tested with 7458 kB)

Download Speed is:: 148 kB/s

Tested From:: http://speedtest.hispasoft.net

Test Time:: 2006/08/15 - 4:53pm

Bottom Line:: 21X faster than 56K 1MB Download in 6.92 sec

Tested from a 7458 kB file and took 50.406 seconds to complete

Download Diagnosis:: May need help : running at only 42.56 % of your hosts average (189.159)

D-Validation Link:: https://testmy.net/stats/id-J2CYP15DU

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

:::.. Download Stats ..:::

Download Connection is:: 1214 Kbps about 1.21 Mbps (tested with 7458 kB)

Download Speed is:: 148 kB/s

Tested From:: http://speedtest.hispasoft.net

Test Time:: 2006/08/15 - 4:54pm

Bottom Line:: 21X faster than 56K 1MB Download in 6.92 sec

Tested from a 7458 kB file and took 50.313 seconds to complete

Download Diagnosis:: May need help : running at only 42.99 % of your hosts average (189.159)

D-Validation Link:: https://testmy.net/stats/id-NWUYZH1O8

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

[glow=red,2,300]Vanburen:[/glow]

:::.. Download Stats ..:::

Download Connection is:: 650 Kbps about 0.65 Mbps (tested with 20972 kB)

Download Speed is:: 79 kB/s

Tested From:: http://hem.bredband.net

Test Time:: 2006/08/15 - 5:00pm

Bottom Line:: 11X faster than 56K 1MB Download in 12.96 sec

Tested from a 20972 kB file and took 264.422 seconds to complete

Download Diagnosis:: May need help : running at only 23.26 % of your hosts average (189.159)

D-Validation Link:: https://testmy.net/stats/id-LCQYFOWUN

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

I thing something is wrong. SOS !!

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mrproper ;I wanted to see how you did with all the RWIN settings small.I think we need to step it to quite a bit larger now.You can try a test a a mirror ot one of the sites you do a large download from .I suspect those will be slow also.

But I needed to start some where because too large an RWIN is bad also.

So now try these.65536

DefaultReceiveWindow =  65536            

DefaultSendWindow    =  65536

TcpWindowSize        =  64240

GlobalMaxTcpWindowSize= 64240

See if the speed goes up also try an upload test.

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I attach new screen of TCP analyzer (see the messages!!)

[glow=red,2,300]:::.. Download Stats ..:::[/glow]Download Connection is:: 2215 Kbps about 2.22 Mbps (tested with 20972 kB)

Download Speed is:: 270 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 5:19pm

Bottom Line:: 39X faster than 56K 1MB Download in 3.79 sec

Tested from a 20972 kB file and took 77.563 seconds to complete

Download Diagnosis:: May need help : running at only 79.5 % of your hosts average (189.159)

D-Validation Link:: https://testmy.net/stats/id-8IYEQDNPF

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

[glow=red,2,300]:::.. Upload Stats ..:::[/glow]

Upload Connection is:: 312 Kbps about 0.31 Mbps (tested with 2992 kB)

Upload Speed is:: 38 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 5:21pm

Bottom Line:: 5X faster than 56K 1MB Upload in 26.95 sec

Tested from a 2992 kB file and took 78.48 seconds to complete

Upload Diagnosis:: Looks Great : 2.3 % faster than the average for host (189.159)

U-Validation Link:: https://testmy.net/stats/id-F62OSWNHY

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

[glow=red,2,300]:::.. Download Stats ..:::[/glow]Download Connection is:: 2333 Kbps about 2.33 Mbps (tested with 20972 kB)

Download Speed is:: 285 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 5:25pm

Bottom Line:: 41X faster than 56K 1MB Download in 3.59 sec

Tested from a 20972 kB file and took 73.641 seconds to complete

Download Diagnosis:: May need help : running at only 83.95 % of your hosts average (189.159)

D-Validation Link:: https://testmy.net/stats/id-VRL5WEITG

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

[glow=red,2,300]:::.. Upload Stats ..:::[/glow]

Upload Connection is:: 379 Kbps about 0.38 Mbps (tested with 2992 kB)

Upload Speed is:: 46 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 5:27pm

Bottom Line:: 7X faster than 56K 1MB Upload in 22.26 sec

Tested from a 2992 kB file and took 64.58976 seconds to complete

Upload Diagnosis:: Looks Great : 19.56 % faster than the average for host (189.159)

U-Validation Link:: https://testmy.net/stats/id-NQSPYU8HA

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

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I copy you part of the test of TCP Analyzer because it doesn't read vere well.

Default TCP Receive Window (RWIN) = 65536

RWIN Scaling (RFC1323) = 1 bits (scale factor of 2)

Unscaled TCP Receive Window = 32768

RWIN is not fully optimized (even though it is a comparatively large number). The unscaled RWIN value is lower than it should be. Also, RWIN being close to and above 65535 does not justify the header overhead of enabling TCP 1323 Options. You might want to use one of the recommended RWIN values below.

For optimum performance, consider changing RWIN to a multiple of MSS.

Other RWIN values 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)

128480 (MSS x 44 * scale factor of 2)

64240 (MSS x 44)

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mrproper;I read the messages in the screen shot.The TCPIP Analyzer makes the wrong recomendation for RWIN in Windows XP.Because the base all of them on MSS.

They would be correct about the scaling if I wasn't going to have you go larger now.

You can see the speed took a step uo from the first settings.I think this is what you will continue to see until it gets too large.So lets go another step up.

DefaultReceiveWindow =  131072         

DefaultSendWindow    =  131072

TcpWindowSize        =  128480

GlobalMaxTcpWindowSize= 128480

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Ok, I trust totally in you. I am doing everything you are telling me.

TcpWindowSize        =  128480

GlobalMaxTcpWindowSize= 128480

Those values are the same I had before the experiments. So we are changing the other two values (increasing them).

Best results than before:

[glow=red,2,300]:::.. Download Stats ..:::[/glow]Download Connection is:: 3322 Kbps about 3.32 Mbps (tested with 20972 kB)

Download Speed is:: 406 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 5:52pm

Bottom Line:: 58X faster than 56K 1MB Download in 2.52 sec

Tested from a 20972 kB file and took 51.719 seconds to complete

Download Diagnosis:: Looks Great : 19.67 % faster than the average for host (189.159)

D-Validation Link:: https://testmy.net/stats/id-CR91WZXFD

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

[glow=red,2,300]:::.. Download Stats ..:::[/glow]

Download Connection is:: 4198 Kbps about 4.2 Mbps (tested with 20972 kB)

Download Speed is:: 512 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 5:53pm

Bottom Line:: 73X faster than 56K 1MB Download in 2 sec

Tested from a 20972 kB file and took 40.922 seconds to complete

Download Diagnosis:: Awesome! 20% + : 50.2 % faster than the average for host (189.159)

D-Validation Link:: https://testmy.net/stats/id-G0TW2S91R

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

[glow=red,2,300]:::.. Upload Stats ..:::[/glow]

Upload Connection is:: 397 Kbps about 0.4 Mbps (tested with 2992 kB)

Upload Speed is:: 48 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 5:54pm

Bottom Line:: 7X faster than 56K 1MB Upload in 21.33 sec

Tested from a 2992 kB file and took 61.8 seconds to complete

Upload Diagnosis:: Awesome! 20% + : 21.04 % faster than the average for host (189.159)

U-Validation Link:: https://testmy.net/stats/id-U3COR61G7

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

[glow=red,2,300]:::.. Upload Stats ..:::[/glow]

Upload Connection is:: 400 Kbps about 0.4 Mbps (tested with 2992 kB)

Upload Speed is:: 49 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 5:56pm

Bottom Line:: 7X faster than 56K 1MB Upload in 20.9 sec

Tested from a 2992 kB file and took 61.21536 seconds to complete

Upload Diagnosis:: Looks Great : 18.69 % faster than the average for host (189.159)

U-Validation Link:: https://testmy.net/stats/id-NKY4SA15W

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

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mrproper;I'm just going up in size with the RWIN using the correct calculations for them.VanBuren knows a lot more about some of this than me but it's hard to get him to devote the time.So I'm having you take it up till we see a speed drop.Then we will go back down a little.After this I need to find more about adjusting the 3 buffer sizes in CableNut to help with those.

I think we should begin to see a slow down in the upload first.Since there is so much difference in your upload & download.

So try these.

DefaultReceiveWindow =  262144         

DefaultSendWindow    =  262144

TcpWindowSize        =  256960

GlobalMaxTcpWindowSize= 256960

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:::.. Download Stats ..:::

Download Connection is:: 5570 Kbps about 5.57 Mbps (tested with 20972 kB)

Download Speed is:: 680 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 6:28pm

Bottom Line:: 97X faster than 56K 1MB Download in 1.51 sec

Tested from a 20972 kB file and took 30.844 seconds to complete

Download Diagnosis:: Awesome! 20% + : 95.51 % faster than the average for host (189.159)

D-Validation Link:: https://testmy.net/stats/id-9XIZ8GC6T'>https://testmy.net/stats/id-9XIZ8GC6T

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

:::.. Download Stats ..:::

Download Connection is:: 4258 Kbps about 4.26 Mbps (tested with 20972 kB)

Download Speed is:: 520 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 6:29pm

Bottom Line:: 74X faster than 56K 1MB Download in 1.97 sec

Tested from a 20972 kB file and took 40.344 seconds to complete

Download Diagnosis:: Awesome! 20% + : 48.52 % faster than the average for host (189.159)

D-Validation Link:: https://testmy.net/stats/id-JUI2TKBEM'>https://testmy.net/stats/id-JUI2TKBEM

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

:::.. Download Stats ..:::

Download Connection is:: 5989 Kbps about 5.99 Mbps (tested with 20972 kB)

Download Speed is:: 731 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/15 - 6:30pm

Bottom Line:: 104X faster than 56K 1MB Download in 1.4 sec

Tested from a 20972 kB file and took 28.688 seconds to complete

Download Diagnosis:: Awesome! 20% + : 106.16 % faster than the average for host (189.159)

D-Validation Link:: https://testmy.net/stats/id-5WG6OQTN8'>https://testmy.net/stats/id-5WG6OQTN8

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

:::.. Upload Stats ..:::

Upload Connection is:: 404 Kbps about 0.4 Mbps (tested with 2992 kB)

Upload Speed is:: 49 kB/s

Tested From:: https://testmy.net/ (Server 2)

Test Time:: 2006/08/15 - 6:34pm

Bottom Line:: 7X faster than 56K 1MB Upload in 20.9 sec

Tested from a 2992 kB file and took 60.73536 seconds to complete

Upload Diagnosis:: Looks Great : 17.1 % faster than the average for host (189.159)

U-Validation Link:: https://testmy.net/stats/id-F2LIAMHBX

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

:::.. Upload Stats ..:::

Upload Connection is:: 405 Kbps about 0.41 Mbps (tested with 2992 kB)

Upload Speed is:: 49 kB/s

Tested From:: https://testmy.net/ (Server 2)

Test Time:: 2006/08/15 - 6:36pm

Bottom Line:: 7X faster than 56K 1MB Upload in 20.9 sec

Tested from a 2992 kB file and took 60.57024 seconds to complete

Upload Diagnosis:: Looks Great : 15.38 % faster than the average for host (189.159)

U-Validation Link:: https://testmy.net/stats/id-Y9FVCU6HD

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

:::.. Upload Stats ..:::

Upload Connection is:: 404 Kbps about 0.4 Mbps (tested with 2992 kB)

Upload Speed is:: 49 kB/s

Tested From:: https://testmy.net/ (Server 2)

Test Time:: 2006/08/15 - 6:37pm

Bottom Line:: 7X faster than 56K 1MB Upload in 20.9 sec

Tested from a 2992 kB file and took 60.69024 seconds to complete

Upload Diagnosis:: Looks Great : 13.48 % faster than the average for host (189.159)

U-Validation Link:: https://testmy.net/stats/id-PS9FWCAEG

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

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mrproper;That's fine.I would be tired too.It's only 9:00 PM in Texas right now.

It looks like the Download is steadily coming up & more consistent.The upload has about leveled.I'm going to put the next settings in .You don't have to use them until your ready

Get some sleep.

DefaultReceiveWindow =  393216           

DefaultSendWindow    =  393216

TcpWindowSize        =  385440

GlobalMaxTcpWindowSize= 385440

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mrproper;That's fine.I would be tired too.It's only 9:00 PM in Texas right now.

It looks like the Download is steadily coming up & more consistent.The upload has about leveled.I'm going to put the next settings in .You don't have to use them until your ready

Get some sleep.

DefaultReceiveWindow =  393216           

DefaultSendWindow    =  393216

TcpWindowSize        =  385440

GlobalMaxTcpWindowSize= 385440

Ok, I am working now (it's 12:10 p.m.) but when arriving at home I will apply the new values.

It is a pity. I would have liked to continue yesterday, because today results might be different (the line might be slower or more quickly today than yesterday) so it would have been more interesting to have done it the same day. But I was very tired and I hardly sleeped today.

One thing, why do you change all four values at the same time? Why don't you leave constant two values and change the other two?

MrProper  :roll:

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mrproper;I don't mind explaining my method.First there is no site that has a real how to on doing this.So I think this is the best method based on what I know.

These 3 are RWIN settings:

DefaultReceiveWindow

TcpWindowSize     

GlobalMaxTcpWindowSize

These affect the download you are able to recieve.The first one is calculated with AFD parameters & the next 2 are calculated based on MSS which is MTU minus 40.

The minus 40 comes from bytes in the datagram header that basically tell the Internet how to handle the data contained in the datagram.The amount left is the data you recieve which is the MSS.In your case 1460 bytes.

The reason I change these every time is I believe they should be as close as the calculations will let them be to the same size.Otherwise if for whatever reason your computer OS routed the datagrams to a lot smaller RWIN because 2 of them were left a lot smaller then it would slow the download.

This setting is actually the send window it effects upload.

DefaultSendWindow

When it hits is best speed we will quite changing it with the others.We may even try it smaller after the RWIN values reach their fastest.

I hope that explains it well enough.

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I only asked because I thought the parameters that determined RWIN were exclusively two: TcpWindowSize and GlobalMaxTcpWindowSize.

I knew that the other one (DefaultReceiveWindow) was involved in download speed and it should be as high as possible but without fragmenting the packets.

DefaultSendWindow parameter is involved in upload speed (the same as DefaultReceiveWindow but with upload speed) but is involved indirectly in download speed (because a wrong value - too high or too low - slows down your downloads).

That is what I thought after reading a lot, and you must be aware that I din't know anything before coming to testmy.net. So I am learning very much and I am very grateful for teaching me so much.

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DefaultReceiveWindow =  393216           

DefaultSendWindow    =  393216

TcpWindowSize        =  385440

GlobalMaxTcpWindowSize= 385440

I have repeated the tests before applying new changes so that we can compare results at the same time. The other day in Spain it was midnight and now it's 15:25.

So, [glow=red,2,300]BEFORE [/glow] applying changes:

:::.. Download Stats ..:::

Download Connection is:: 3450 Kbps about 3.45 Mbps (tested with 20972 kB)

Download Speed is:: 421 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/17 - 5:59am

Bottom Line:: 60X faster than 56K 1MB Download in 2.43 sec

Tested from a 20972 kB file and took 49.797 seconds to complete

Download Diagnosis:: Looks Great : 9.38 % faster than the average for host (54.81)

D-Validation Link:: https://testmy.net/stats/id-E65X8VDYB'>https://testmy.net/stats/id-E65X8VDYB

:::.. Download Stats ..:::

Download Connection is:: 2031 Kbps about 2.03 Mbps (tested with 20972 kB)

Download Speed is:: 248 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/17 - 6:01am

Bottom Line:: 35X faster than 56K 1MB Download in 4.13 sec

Tested from a 20972 kB file and took 84.609 seconds to complete

Download Diagnosis:: May need help : running at only 70.69 % of your hosts average (54.81)

D-Validation Link:: https://testmy.net/stats/id-QU2F7Z3O8'>https://testmy.net/stats/id-QU2F7Z3O8

:::.. Download Stats ..:::

Download Connection is:: 3191 Kbps about 3.19 Mbps (tested with 20972 kB)

Download Speed is:: 390 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/17 - 6:03am

Bottom Line:: 56X faster than 56K 1MB Download in 2.63 sec

Tested from a 20972 kB file and took 53.844 seconds to complete

Download Diagnosis:: Looks Great : 8.65 % faster than the average for host (54.81)

D-Validation Link:: https://testmy.net/stats/id-WJ4VY7CZX'>https://testmy.net/stats/id-WJ4VY7CZX

:::.. Upload Stats ..:::

Upload Connection is:: 403 Kbps about 0.4 Mbps (tested with 2992 kB)

Upload Speed is:: 49 kB/s

Tested From:: https://testmy.net/ (Server 2)

Test Time:: 2006/08/17 - 6:06am

Bottom Line:: 7X faster than 56K 1MB Upload in 20.9 sec

Tested from a 2992 kB file and took 60.81024 seconds to complete

Upload Diagnosis:: 90% + Okay : running at 100 % of your hosts average (54.81)

U-Validation Link:: https://testmy.net/stats/id-006EJBNFZ

:::.. Upload Stats ..:::

Upload Connection is:: 404 Kbps about 0.4 Mbps (tested with 2992 kB)

Upload Speed is:: 49 kB/s

Tested From:: https://testmy.net/ (Server 1)

Test Time:: 2006/08/17 - 6:08am

Bottom Line:: 7X faster than 56K 1MB Upload in 20.9 sec

Tested from a 2992 kB file and took 60.73536 seconds to complete

Upload Diagnosis:: 90% + Okay : running at 100 % of your hosts average (54.81)

U-Validation Link:: https://testmy.net/stats/id-9W0GB1V87

:::.. Upload Stats ..:::

Upload Connection is:: 404 Kbps about 0.4 Mbps (tested with 2992 kB)

Upload Speed is:: 49 kB/s

Tested From:: https://testmy.net/ (Server 1)

Test Time:: 2006/08/17 - 6:09am

Bottom Line:: 7X faster than 56K 1MB Upload in 20.9 sec

Tested from a 2992 kB file and took 60.69024 seconds to complete

Upload Diagnosis:: 90% + Okay : running at 100 % of your hosts average (54.81)

U-Validation Link:: https://testmy.net/stats/id-F8K67AOGQ

And [glow=red,2,300]AFTER [/glow] applying changes:

:::.. Download Stats ..:::

Download Connection is:: 4044 Kbps about 4.04 Mbps (tested with 20972 kB)

Download Speed is:: 494 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/17 - 6:15am

Bottom Line:: 71X faster than 56K 1MB Download in 2.07 sec

Tested from a 20972 kB file and took 42.484 seconds to complete

Download Diagnosis:: Awesome! 20% + : 29.57 % faster than the average for host (54.81)

D-Validation Link:: https://testmy.net/stats/id-TYILUDQ7W

:::.. Download Stats ..:::

Download Connection is:: 2295 Kbps about 2.3 Mbps (tested with 20972 kB)

Download Speed is:: 280 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/17 - 6:16am

Bottom Line:: 40X faster than 56K 1MB Download in 3.66 sec

Tested from a 20972 kB file and took 74.875 seconds to complete

Download Diagnosis:: May need help : running at only 76.42 % of your hosts average (54.81)

D-Validation Link:: https://testmy.net/stats/id-C4GZS1LMA

:::.. Download Stats ..:::

Download Connection is:: 4975 Kbps about 4.98 Mbps (tested with 20972 kB)

Download Speed is:: 607 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/17 - 6:17am

Bottom Line:: 87X faster than 56K 1MB Download in 1.69 sec

Tested from a 20972 kB file and took 34.531 seconds to complete

Download Diagnosis:: Awesome! 20% + : 53.08 % faster than the average for host (54.81)

D-Validation Link:: https://testmy.net/stats/id-RCX492ZLQ

:::.. Upload Stats ..:::

Upload Connection is:: 401 Kbps about 0.4 Mbps (tested with 2992 kB)

Upload Speed is:: 49 kB/s

Tested From:: https://testmy.net/ (Server 1)

Test Time:: 2006/08/17 - 6:19am

Bottom Line:: 7X faster than 56K 1MB Upload in 20.9 sec

Tested from a 2992 kB file and took 61.12416 seconds to complete

Upload Diagnosis:: 90% + Okay : running at 99.5 % of your hosts average (54.81)

U-Validation Link:: https://testmy.net/stats/id-9AEKLX8U6

:::.. Upload Stats ..:::

Upload Connection is:: 403 Kbps about 0.4 Mbps (tested with 2992 kB)

Upload Speed is:: 49 kB/s

Tested From:: https://testmy.net/ (Server 2)

Test Time:: 2006/08/17 - 6:21am

Bottom Line:: 7X faster than 56K 1MB Upload in 20.9 sec

Tested from a 2992 kB file and took 60.81024 seconds to complete

Upload Diagnosis:: 90% + Okay : running at 100 % of your hosts average (54.81)

U-Validation Link:: https://testmy.net/stats/id-N8OHADRXS

:::.. Upload Stats ..:::

Upload Connection is:: 403 Kbps about 0.4 Mbps (tested with 2992 kB)

Upload Speed is:: 49 kB/s

Tested From:: https://testmy.net/ (Server 2)

Test Time:: 2006/08/17 - 6:23am

Bottom Line:: 7X faster than 56K 1MB Upload in 20.9 sec

Tested from a 2992 kB file and took 60.76512 seconds to complete

Upload Diagnosis:: 90% + Okay : running at 100 % of your hosts average (54.81)

U-Validation Link:: https://testmy.net/stats/id-312XH89FD

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mrproper;First I wanted to further explain this DefaultReceiveWindow,TcpWindowSize &GlobalMaxTcpWindowSize are all RWIN.RWIN is just short for receive window.The difference is in Windows XP the DefaultReceiveWindow which is Windows XP's first chioce to use is based on AFD parameters.TcpWindowSize & GlobalMaxTcpWindowSize are based on TCPIP parameters.These are used if your connection is using TCPIP & it probably does for some of the Internet you connect to.

The server time when you did the tests before the last settingwas 6:30 PM the server test time.The last ones at 6:00 AM server time.I really don't know why they were slower with the previous settings.I think you still need to try a couple of larger settings to see if this improves your speed.The send wimdow has about leveled so we will leave it for now & actually make it smaller after the best RWIN is determined.

DefaultReceiveWindow =  524288         

TcpWindowSize        =  513920

GlobalMaxTcpWindowSize= 513920

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Download Connection is:: 6972 Kbps about 6.97 Mbps (tested with 20972 kB)

Download Speed is:: 851 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/17 - 7:13am

Bottom Line:: 122X faster than 56K 1MB Download in 1.2 sec

Tested from a 20972 kB file and took 24.641 seconds to complete

Download Diagnosis:: Awesome! 20% + : 96.23 % faster than the average for host (54.81)

D-Validation Link:: https://testmy.net/stats/id-3UVZTN50K'>https://testmy.net/stats/id-3UVZTN50K

Download Connection is:: 7053 Kbps about 7.05 Mbps (tested with 20972 kB)

Download Speed is:: 861 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/17 - 7:14am

Bottom Line:: 123X faster than 56K 1MB Download in 1.19 sec

Tested from a 20972 kB file and took 24.359 seconds to complete

Download Diagnosis:: Awesome! 20% + : 82.2 % faster than the average for host (54.81)

D-Validation Link:: https://testmy.net/stats/id-7C54QNB93'>https://testmy.net/stats/id-7C54QNB93

Download Connection is:: 5291 Kbps about 5.29 Mbps (tested with 20972 kB)

Download Speed is:: 646 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/17 - 7:15am

Bottom Line:: 92X faster than 56K 1MB Download in 1.59 sec

Tested from a 20972 kB file and took 32.469 seconds to complete

Download Diagnosis:: Awesome! 20% + : 32.64 % faster than the average for host (54.81)

D-Validation Link:: https://testmy.net/stats/id-5ERAQPI4D'>https://testmy.net/stats/id-5ERAQPI4D

Upload Connection is:: 401 Kbps about 0.4 Mbps (tested with 2992 kB)

Upload Speed is:: 49 kB/s

Tested From:: https://testmy.net/ (Server 1)

Test Time:: 2006/08/17 - 7:17am

Bottom Line:: 7X faster than 56K 1MB Upload in 20.9 sec

Tested from a 2992 kB file and took 61.13952 seconds to complete

Upload Diagnosis:: 90% + Okay : running at 99.5 % of your hosts average (54.81)

U-Validation Link:: https://testmy.net/stats/id-JV8AF4DHB

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mrproper ;Some faster so try these

DefaultReceiveWindow =  786432     

TcpWindowSize        =  770880

GlobalMaxTcpWindowSize= 770480

:::.. Download Stats ..:::

Download Connection is:: 3851 Kbps about 3.85 Mbps (tested with 20972 kB)

Download Speed is:: 470 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/17 - 8:01am

Bottom Line:: 67X faster than 56K 1MB Download in 2.18 sec

Tested from a 20972 kB file and took 44.61 seconds to complete

Download Diagnosis:: 90% + Okay : running at 96.78 % of your hosts average (54.81)

D-Validation Link:: https://testmy.net/stats/id-N1V8L5HZP

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

:::.. Download Stats ..:::

Download Connection is:: 2734 Kbps about 2.73 Mbps (tested with 20972 kB)

Download Speed is:: 334 kB/s

Tested From:: http://s2.testmy.net

Test Time:: 2006/08/17 - 8:03am

Bottom Line:: 48X faster than 56K 1MB Download in 3.07 sec

Tested from a 20972 kB file and took 62.843 seconds to complete

Download Diagnosis:: May need help : running at only 70.28 % of your hosts average (54.81)

D-Validation Link:: https://testmy.net/stats/id-XNDFP3HQW

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322) [!]

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mrproper ;Those may be too large it seems to have slowed down.So go back to the previous ones.I think they are close to best you are going to get.I could come up with a couple in between to fine tune it .Before you move these back down though try to time a large download with these & then the previous settings .Like you were doing in earlier posts.I think it was a 250MB download.I could go back & check but I think you get the idea.

Just to make sure that you are not tweaking just to the test but also to a real function that you use.

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Before clearing current values I will download two large files simultaneously with Flashget.

I will go back to previous values and I will do it again and compare.

Afterwards you can fine my connection a bit more if you think it is possible.

I am working now, so I will do it in two or three hours. See you later.

By the way, don't you use MSN, Sonork or any messenger program? I think it would be easier at this moment to communicate in this way (we are changing constantly values and we would need sometimes a real time communication).

MrProper  :-P

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