Van,

    I ran this test from http://speedtest.umnet.umich.edu and here's my results....

TCP/Web100 Network Diagnostic Tool v5.2.1d
click START to begin
Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done
running 10s outbound test (client to server) . . . . . 19.81Mb/s
running 10s inbound test (server to client) . . . . . . 31.47Mb/s
The slowest link in the end-to-end path is a 100 Mbps Full duplex Fast Ethernet subnet

click START to re-test


^^^^ I'm not so much concerned about the scores ... I looked at the "More Details" button and here's what I got...

WEB100 Kernel Variables:
Client: localhost/127.0.0.1
AckPktsIn: 3570
AckPktsOut: 0
BytesRetrans: 0
CongAvoid: 0
CongestionOverCount: 0
CongestionSignals: 0
CountRTT: 3536
CurCwnd: 1017060
CurMSS: 1380
CurRTO: 390
CurRwinRcvd: 1015680
CurRwinSent: 5840
CurSsthresh: 2147483647
DSACKDups: 0
DataBytesIn: 0
DataBytesOut: 39591936
DataPktsIn: 0
DataPktsOut: 28696
DupAcksIn: 34
ECNEnabled: 0
FastRetran: 0
MaxCwnd: 1017060
MaxMSS: 1380
MaxRTO: 420
MaxRTT: 240
MaxRwinRcvd: 1015680
MaxRwinSent: 5840
MaxSsthresh: 0
MinMSS: 1380
MinRTO: 250
MinRTT: 50
MinRwinRcvd: 0
MinRwinSent: 5840
NagleEnabled: 1
OtherReductions: 10
PktsIn: 3571
PktsOut: 28696
PktsRetrans: 0
X_Rcvbuf: 65535
SACKEnabled: 3
SACKsRcvd: 8
SendStall: 0
SlowStart: 772
SampleRTT: 190
SmoothedRTT: 190
X_Sndbuf: 65535
SndLimTimeRwin: 6616101
SndLimTimeCwnd: 3289549
SndLimTimeSender: 199786
SndLimTransRwin: 38
SndLimTransCwnd: 9
SndLimTransSender: 36
SndLimBytesRwin: 25476180
SndLimBytesCwnd: 12407580
SndLimBytesSender: 1708176
SubsequentTimeouts: 0
SumRTT: 532310
Timeouts: 0
TimestampsEnabled: 0
WinScaleRcvd: 4
WinScaleSent: 5
DupAcksOut: 0
StartTimeUsec: 824921
Duration: 10127005
c2sData: 5
c2sAck: 5
s2cData: 7
s2cAck: 5

Checking for mismatch condition
   (cwndtime > .3) [0.32>.3], (MaxSsthresh > 0) [0>0],
    (PktsRetrans/sec > 2) [0>2], (estimate > 2) [69.93>2]
Checking for mismatch on uplink
   (speed > 50 [31.34>50], (xmitspeed < 5) [19.81<5]
   (rwintime > .9) [0.65>.9], (loss < .01) [1.0E<.01]
Checking for excessive errors condition
   (loss/sec > .15) [1.0E>.15], (cwndtime > .6) [0.32>.6],
   (loss < .01) [1.0E<.01], (MaxSsthresh > 0) [0>0]
Checking for 10 Mbps link
   (speed < 9.5) [31.34<9.5], (speed > 3.0) [31.34>3.0]
   (xmitspeed < 9.5) [19.81<9.5] (loss < .01) [1.0E<.01], (link > 0) [100>0]
Checking for Wireless link
   (sendtime = 0) [0.01=0], (speed < 5) [31.34<5]
   (Estimate > 50 [69.93>50], (Rwintime > 90) [0.65>.90]
    (RwinTrans/CwndTrans = 1) [38/9=1], (link > 0) [100>0]
Checking for DSL/Cable Modem link
   (speed < 2) [31.34<2], (SndLimTransSender = 0) [36=0]
    (SendTime = 0) [0.019770151431368226=0], (link > 0) [100>0]
Checking for half-duplex condition
   (rwintime > .95) [0.65>.95], (RwinTrans/sec > 30) [3.8>30],
    (SenderTrans/sec > 30) [3.6>30], OR (link <= 10) [100<=10]
Checking for congestion
   (cwndtime > .02) [0.32>.02], (mismatch = 0) [0=0]
   (MaxSsthresh > 0) [0>0]

bw = 69.93 based on packet size = 10Kbits, RTT = 150.54msec, and loss = 1.0E-6
The theoretical network limit is 69.93 Mbps
The transmit buffer (63.0 KByte) limits the application to 3.32 Mbps
Your receive buffer (991.0 KByte) limits the application to 51.47 Mbps
The network based flow control limits the application to 51.54 Mbps

Client Data reports link is 'FastE', Client Acks report link is 'FastE'
Server Data reports link is 'GigE', Server Acks report link is 'FastE'


My question is, where is this "transmit buffer" setting they speak of? I have looked in cable nut, and didn't see anything labled exactly as that nor did I see any of my settings that indicated a 63 kB buffer size.... Maybe this is why on testmy.net my upload speed is consistantly around 3.1 Mbps... any ideas?

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)   <<=============   
Download Speed is:: 2589 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 379 times faster than 56K you can download 1MB in 0.4 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=M1VABD9ZR

::::::::::.. Download Stats ..::::::::::
Connection is:: 15814 Kbps about 15.8 Mbps (tested with 12160 KB)
Download Speed is:: 1930 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 282 times faster than 56K you can download 1MB in 0.53 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=VMRHKES8T


::::::::::.. Download Stats ..::::::::::
Connection is:: 15839 Kbps about 15.8 Mbps (tested with 12160 KB)
Download Speed is:: 1933 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 283 times faster than 56K you can download 1MB in 0.53 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=BRWNYLUMV


::::::::::.. Download Stats ..::::::::::
Connection is:: 16413 Kbps about 16.4 Mbps (tested with 12160 KB)
Download Speed is:: 2004 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 293 times faster than 56K you can download 1MB in 0.51 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=Y1LNGKBM6


Ok, the following must have been cached somehow... 


::::::::::.. Download Stats ..::::::::::
Connection is:: 59187 Kbps about 59.2 Mbps (tested with 12160 KB)
Download Speed is:: 7225 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 1057 times faster than 56K you can download 1MB in 0.14 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=TKJREW0U1

Ok... working on it now... this will take me a little while...  I'm now back at my apartment and remotely doing this and I am using the 100 Mbps file....


****** EDIT:

Here are the scores with the 100 Mbps file.... the only variables I changed were TcpWindowSize and GlobalTcpWindowSize (Changed both each time)... And Tcp1323Opts when necessary.

============================================================================
TcpWindowSize = 63480 - Window Scaling Off (TCP1323Opt = 0) 337 users online
============================================================================


::::::::::.. Download Stats ..::::::::::
Connection is:: 8373 Kbps about 8.4 Mbps (tested with 12160 KB)
Download Speed is:: 1022 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 150 times faster than 56K you can download 1MB in 1 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=DJAWY9M3L

::::::::::.. Download Stats ..::::::::::
Connection is:: 8324 Kbps about 8.3 Mbps (tested with 12160 KB)
Download Speed is:: 1016 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 149 times faster than 56K you can download 1MB in 1.01 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=PCMW7QBG6

::::::::::.. Download Stats ..::::::::::
Connection is:: 8387 Kbps about 8.4 Mbps (tested with 12160 KB)
Download Speed is:: 1024 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 150 times faster than 56K you can download 1MB in 1 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=AB8KFM00R




============================================================================
TcpWindowSize = 126960 - Window Scaling On (TCP1323Opt = 1) 334 users online
============================================================================

::::::::::.. Download Stats ..::::::::::
Connection is:: 12234 Kbps about 12.2 Mbps (tested with 12160 KB)
Download Speed is:: 1493 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 218 times faster than 56K you can download 1MB in 0.69 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=XJN4U1PAC

::::::::::.. Download Stats ..::::::::::
Connection is:: 12704 Kbps about 12.7 Mbps (tested with 12160 KB)
Download Speed is:: 1551 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 227 times faster than 56K you can download 1MB in 0.66 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=TXNMC872O

::::::::::.. Download Stats ..::::::::::
Connection is:: 12656 Kbps about 12.7 Mbps (tested with 12160 KB)
Download Speed is:: 1545 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 226 times faster than 56K you can download 1MB in 0.66 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=O2M0YFBSX




============================================================================
TcpWindowSize = 253920 - Window Scaling On (TCP1323Opt = 1) 329 users online
============================================================================

::::::::::.. Download Stats ..::::::::::
Connection is:: 13644 Kbps about 13.6 Mbps (tested with 12160 KB)
Download Speed is:: 1665 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 244 times faster than 56K you can download 1MB in 0.62 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=DBV6EI02G

::::::::::.. Download Stats ..::::::::::
Connection is:: 13625 Kbps about 13.6 Mbps (tested with 12160 KB)
Download Speed is:: 1663 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 243 times faster than 56K you can download 1MB in 0.62 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=QTVEI9N5C

::::::::::.. Download Stats ..::::::::::
Connection is:: 14190 Kbps about 14.2 Mbps (tested with 12160 KB)
Download Speed is:: 1732 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 253 times faster than 56K you can download 1MB in 0.59 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=41GBF3580




============================================================================
TcpWindowSize = 507840 - Window Scaling On (TCP1323Opt = 1) 321 users online
============================================================================

::::::::::.. Download Stats ..::::::::::
Connection is:: 14353 Kbps about 14.4 Mbps (tested with 12160 KB)
Download Speed is:: 1752 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 256 times faster than 56K you can download 1MB in 0.58 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=PO97YE2K8

::::::::::.. 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/
Bottom Line:: 259 times faster than 56K you can download 1MB in 0.58 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=FWQMG7CVO

::::::::::.. Download Stats ..::::::::::
Connection is:: 14957 Kbps about 15 Mbps (tested with 12160 KB)
Download Speed is:: 1826 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 267 times faster than 56K you can download 1MB in 0.56 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=M7OYRAZ8H




=============================================================================
TcpWindowSize = 1015680 - Window Scaling On (TCP1323Opt = 1) 309 users online
=============================================================================

::::::::::.. Download Stats ..::::::::::
Connection is:: 37392 Kbps about 37.4 Mbps (tested with 12160 KB) <======= I don't think that was right...lol
Download Speed is:: 4564 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 668 times faster than 56K you can download 1MB in 0.22 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=WGHB795ZS

::::::::::.. Download Stats ..::::::::::
Connection is:: 14109 Kbps about 14.1 Mbps (tested with 12160 KB)
Download Speed is:: 1722 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 252 times faster than 56K you can download 1MB in 0.59 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=2V1L0WN7I

::::::::::.. Download Stats ..::::::::::
Connection is:: 14627 Kbps about 14.6 Mbps (tested with 12160 KB)
Download Speed is:: 1786 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 261 times faster than 56K you can download 1MB in 0.57 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=H2NOA9E6G

::::::::::.. Download Stats ..::::::::::
Connection is:: 14521 Kbps about 14.5 Mbps (tested with 12160 KB)
Download Speed is:: 1773 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 259 times faster than 56K you can download 1MB in 0.58 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=WYRJ1DNA6




=============================================================================
TcpWindowSize = 2031360 - Window Scaling On (TCP1323Opt = 1) 327 users online
=============================================================================

::::::::::.. Download Stats ..::::::::::
Connection is:: 15162 Kbps about 15.2 Mbps (tested with 12160 KB)
Download Speed is:: 1851 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 271 times faster than 56K you can download 1MB in 0.55 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=VYT054ZNG

::::::::::.. Download Stats ..::::::::::
Connection is:: 14825 Kbps about 14.8 Mbps (tested with 12160 KB)
Download Speed is:: 1810 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 265 times faster than 56K you can download 1MB in 0.57 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=F6W8V5KJL

::::::::::.. Download Stats ..::::::::::
Connection is:: 14845 Kbps about 14.8 Mbps (tested with 12160 KB)
Download Speed is:: 1812 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 265 times faster than 56K you can download 1MB in 0.57 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=U1J0P5MSX




Now, these scores for the most part are the best 3 of about 7 runs on each setting... the scores varied a good bit (I suspect due to network congestion on my end...).... But it seems with the TcpWindowSize @ around 507840 seems to perform the best... after that it's about the same if that good... any suggestions?

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...

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

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 

VanBuren

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

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