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Ok Van, a little insight, please......


Odysseus_____

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hey Odysseus_____ :)

The transmit buffer (63.0 KByte) limits the application to 3.32 Mbps

is actually the testservers RWIN

i have a 384000 sendbuffer in DefaultSendwindow and also get a 63KB send buffer at that test, if i use another analyzer like

http://nitro.ucsc.edu/

it says i have a 101 KB sendbuffer, and thats also wrong

the only thing that can limit it, is the testservers RWIN

btw i see you have a MSS of 1380 and thats very unusual, the fiberoptic cablenut files i have is made for a MSS of 1460, if you want i can make a cablenut file for you

is your 100 Mbps connection dedicated, or should i optimize it for 50 Mbps?

VanBuren :)

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hey Odysseus_____ :)

The transmit buffer (63.0 KByte) limits the application to 3.32 Mbps

is actually the testservers RWIN

i have a 384000 sendbuffer in DefaultSendwindow and also get a 63KB send buffer at that test, if i use another analyzer like

http://nitro.ucsc.edu/

it says i have a 101 KB sendbuffer, and thats also wrong

the only thing that can limit it, is the testservers RWIN

btw i see you have a MSS of 1380 and thats very unusual, the fiberoptic cablenut files i have is made for a MSS of 1460, if you want i can make a cablenut file for you

is your 100 Mbps connection dedicated, or should i optimize it for 50 Mbps?

VanBuren :)

Ahhh... ok I see.. it's a server-side thing with them....

Yeah, the MSS is 1380 (I suppose our provider has it set like that.).... I have set the appropriate settings in cablenut to reflect that, but if you feel like making a tweak file for it, that would be cool. It is in fact a dedicated connection... hell, make 2 files... one for 50 Mbps and one for 100 Mbps... I'll try them both..... Thanks.

...ody...

BTW - whatever tweaks you and cable are doing are working... my speeds just keep getting better.... I haven't tweaked on this machine today....

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

Connection is:: 21207 Kbps about 21.2 Mbps (tested with 12160 KB)

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dern, i think the TcpWindowsize and GlobalMaxTcpWindowsize was enough, cos i only use 64240 and pull 9.2 Mbps on a 150 ms ping

however i might have set the DefaultReciveWindow and DefaultSendwindow abit high

try both the 10 Mbps file and 50 Mbps file without any changes.

i think that 10 Mbps would be able to pull those scores

VanBuren :)

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Ok... Done deal. I ran all of the files and they all seem to do about the same on this machine... i.e.- the performance is best when WindowScaling is on and I am running TcpWindowSize and GlobalTcpWindowSize at either 253920 or 507840.... when it's at 64380 I consistantly get speeds of 10 Mbps or lower.. with the 2 higher settings it's more like 14 Mbps.... Also, my Upstream test does better in this range so I think I'm going to leave it like this for now... It will run better once I clean this machine out as well. It's been about 2 years since it's been formatted (isn't that a shame? I format mine at the house about every 90 days or so)....

Thanks for taking time to look at it though and if you have some more suggestions then let me know....

...Ody...

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heya Ody :)

if you feel like finetuning TcpWindowsize you can use this calculator

http://www.dslnuts.com/bitsbytes.shtml

MSS 1380

Bandwidth in KB/s ( use 9999 ) cos 12500 wont fit hehe

latency to your gateway during worst possible conditions, you can test this by downloading several files until all files togheter is the same as your cap, eg on a 10 mbps line, 3 diffrent downloads one running at 250 KB/s and the other 2 at 500KB/s each  (it can be some problems maxing out a 100 Mbps connection)  :lol:

for my connection it works best with 52 ms, but for cable and dsl between 200 and 300 ms

so you can test same value as i got 52 ms that give you a TcpWindowSize of 518880 thats also multiple with your MSS

the DefaultReciveWindow should be 1024 x (your cap in KB/s )  to max out the connection, but i use a lower value then that

i use 384000 and thats for a cap of 384000 / 1024 = 375 KB/s = 375 x 8 = 3 Mbps and thats around 1 / 3 of my total bandwidth

so i would suggest the following settings

DefaultReciveWindow = 12500 x 1024 = 12800000 / 3 = 4266666

DefaultSendWindow = 12500 x 1024 = 12800000 / 3 = 4266666

TcpWindowSize = 518880

GlobalMaxTcpWindowSize = 518880

Tcp1323Opts = 1

all other setting as the 100 Mbps file i send you

good luck

VanBuren :)

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DefaultReciveWindow = 12500 x 1024 = 12800000 / 3 = 4266666

DefaultSendWindow = 12500 x 1024 = 12800000 / 3 = 4266666

Noticed this was a mistake by me, those 4266666 should be multiple with 1024

so use this value instead

4266666 / 1024 = 4166,666015625 = round up to 4167 x 1024 = 4267008

VanBuren :)

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Noticed this was a mistake by me, those 4266666 should be multiple with 1024

so use this value instead

4266666 / 1024 = 4166,666015625 = round up to 4167 x 1024 = 4267008

VanBuren :)

Ok, I set it up with these settings and the results were nearly the same. I suspect that I can't get much faster due to maybe network congestion or whatever... still I'm happy though.... Here's 7 tests after I made the setting....

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

Connection is:: 17297 Kbps about 17.3 Mbps (tested with 12160 KB)

Download Speed is:: 2111 KB/s

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

Test Time:: Thu Jan 27th 2005 12:49 PM MST

Bottom Line:: 309X faster than 56K 1MB download in 0.49 sec

Validation Link:: https://testmy.net/cgi-bin/get.cgi?Test_ID=PNACE0D7R

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

Connection is:: 14801 Kbps about 14.8 Mbps (tested with 12160 KB)

Download Speed is:: 1807 KB/s

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

Test Time:: Thu Jan 27th 2005 12:49 PM MST

Bottom Line:: 264X faster than 56K 1MB download in 0.57 sec

Validation Link:: https://testmy.net/cgi-bin/get.cgi?Test_ID=YOV1SFR76

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

Connection is:: 14478 Kbps about 14.5 Mbps (tested with 12160 KB)

Download Speed is:: 1767 KB/s

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

Test Time:: Thu Jan 27th 2005 12:50 PM MST

Bottom Line:: 259X faster than 56K 1MB download in 0.58 sec

Validation Link:: https://testmy.net/cgi-bin/get.cgi?Test_ID=6I7BU0WVQ

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

Connection is:: 13951 Kbps about 14 Mbps (tested with 12160 KB)

Download Speed is:: 1703 KB/s

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

Test Time:: Thu Jan 27th 2005 12:50 PM MST

Bottom Line:: 249X faster than 56K 1MB download in 0.6 sec

Validation Link:: https://testmy.net/cgi-bin/get.cgi?Test_ID=RE65YHT7P

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

Connection is:: 14867 Kbps about 14.9 Mbps (tested with 12160 KB)

Download Speed is:: 1815 KB/s

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

Test Time:: Thu Jan 27th 2005 12:50 PM MST

Bottom Line:: 265X faster than 56K 1MB download in 0.56 sec

Validation Link:: https://testmy.net/cgi-bin/get.cgi?Test_ID=YENOB61M9

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

Connection is:: 15024 Kbps about 15 Mbps (tested with 12160 KB)

Download Speed is:: 1834 KB/s

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

Test Time:: Thu Jan 27th 2005 12:51 PM MST

Bottom Line:: 268X faster than 56K 1MB download in 0.56 sec

Validation Link:: https://testmy.net/cgi-bin/get.cgi?Test_ID=P8QYLKASB

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

Connection is:: 15422 Kbps about 15.4 Mbps (tested with 12160 KB)

Download Speed is:: 1883 KB/s

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

Test Time:: Thu Jan 27th 2005 12:51 PM MST

Bottom Line:: 275X faster than 56K 1MB download in 0.54 sec

Validation Link:: https://testmy.net/cgi-bin/get.cgi?Test_ID=T8VUOQYMR

I appreciate your help...  ;)

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heya Ody :)

yea something stopping you from going higher then this, my sister has 100 Mbps fiber at home and with win XP default settings she get around 26 Mbps on a testserver located 25 ms away.

her boyfriend loaded up almost same tweaks as this pulled 93 Mbps down and around 70 Mbps up

yea you also get very sweet speed, and you should be happy  :D

VanBuren :)

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Yeah, I dunno what the deal is... Actually the people that manage the complex say that the offices are supposed to be limited to about 4 mbps up and down..... but apparently there's a little more headroom.... I mean 4 DS3 lines is alot of bandwidth... especially if they're multiplexed....

I'm just going to enjoy it as long as I work there... and I'll reguarly be adding hard drives as I use them up... lol

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Interestingly enough.Van,  I ran tests from home and the office on testmy.net and on http://speedtest.umnet.umich.edu/ .... here they are:

Home: (BellsouthDSLXtreme - 3.0 Mbps / 384Kbps)

http://speedtest.umnet.umich.edu/

------------------------------------------------------

TCP/Web100 Network Diagnostic Tool v5.2.1d

click START to begin

Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done

running 10s outbound test (client to server) . . . . . 357.12Kb/s

running 10s inbound test (server to client) . . . . . . 2.50Mb/s

Your PC is connected to a Cable/DSL modem

click START to re-test

Testmy.net:

--------------------

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

Connection is:: 2421 Kbps about 2.4 Mbps (tested with 2992 KB)

Download Speed is:: 296 KB/s

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

Test Time:: Thu Jan 27th 2005 3:18 PM MST

Bottom Line:: 43X faster than 56K 1MB download in 3.46 sec

Validation Link:: https://testmy.net/cgi-bin/get.cgi?Test_ID=UEAYO0CXZ

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

Connection is:: 322 Kbps about 0.3 Mbps (tested with 1496 KB)

Upload Speed is:: 39 KB/s

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

Test Time:: Thu Jan 27th 2005 3:19 PM MST

Bottom Line:: 6X faster than 56K 1MB download in 26.26 sec

Validation Link:: https://testmy.net/cgi-bin/get.cgi?Test_ID=5PUZ6C3GE

Ok... The scores look consistant with eachother.... now from the office:

http://speedtest.umnet.umich.edu/

------------------------------------------------------

TCP/Web100 Network Diagnostic Tool v5.2.1d

click START to begin

Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done

running 10s outbound test (client to server) . . . . . 35.23Mb/s

running 10s inbound test (server to client) . . . . . . 34.56Mb/s

The slowest link in the end-to-end path is a 100 Mbps Half duplex Fast Ethernet subnet

Information: Other network traffic is congesting the link

click START to re-test

www.testmy.net

------------------------

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

Connection is:: 14291 Kbps about 14.3 Mbps (tested with 12160 KB)

Download Speed is:: 1745 KB/s

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

Test Time:: Thu Jan 27th 2005 3:22 PM MST

Bottom Line:: 255X faster than 56K 1MB download in 0.59 sec

Validation Link:: https://testmy.net/cgi-bin/get.cgi?Test_ID=7CZWD2LI1

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

Connection is:: 3142 Kbps about 3.1 Mbps (tested with 2992 KB)

Upload Speed is:: 383 KB/s

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

Test Time:: Thu Jan 27th 2005 3:23 PM MST

Bottom Line:: 56X faster than 56K 1MB download in 2.67 sec

Validation Link:: https://testmy.net/cgi-bin/get.cgi?Test_ID=P01Q8SLX9

What do ya make of that?

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That prove you have access to atleast 35 Mbps, both ways, it might be a routing issue and thats why you score so much better on the other test compared to testmy.net

not long ago theplanet had some big routing issues to the path im using and i scored around 300 Kbps down lol

it is fixed now, and after CA3LE tweaked it i get constant scores no matter how much ppl that are on server.

i still think the uploadtest here is not accurate for fat pipes, my upload and your upload should be around the same as download.

When uploading, the speed will be depending on the server RWIN, if the server RWIN is low it wont matter how huge sendwindow i set at my end.

for cable and dsl up to around 1 Mbps it seems very accurate

i have a huge sendbuffer of 384000 and on a 150 ms ping im limited to around 2500 KB/s ( way above my cap of 1250 )

still my speed stops at around 200 KB/s constant speed

if the server downloading in 200 KB/s on a 150 ms ping it will need a RWIN of tiny 29200

VanBuren :)

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  Hey vanburen how much is 100mbs over there!!!?

Installation costs to your house is around 1500 USD, then a monthly cost of around 85 USD / month with a 300 GB transfer limit / month

on my 10 Mbps package i have no traffic limit and pay around 40 USD / month

VanBuren :)

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...with a 300 GB transfer limit / month...

Just to put that in perspective for all.... 300 GB ain't alot with a connection like that. When I first set up my newsgroup account on my office connection, I downloaded about 15 gigs that day in about 3-4 hours.... had to get the unlimited Giga-News account... Now I just need more hard drive because that goes away really quickly now.  :haha:

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