dnuge Posted February 14, 2006 CID Share Posted February 14, 2006 i ran the tests from nitro, included my isp is Comcast and im supposed to have 6Mb service but every time i test i can never get above 4 my quality of servie is around 90%. ive used tcp optimizer andWEB100 Kernel Variables: Client: localhost/127.0.0.1 AckPktsIn: 1513 AckPktsOut: 0 BytesRetrans: 0 CongAvoid: 0 CongestionOverCount: 0 CongestionSignals: 0 CountRTT: 1511 CurCwnd: 129940 CurMSS: 1460 CurRTO: 490 CurRwinRcvd: 128480 CurRwinSent: 16304 CurSsthresh: 2147483647 DSACKDups: 0 DataBytesIn: 0 DataBytesOut: 4396060 DataPktsIn: 0 DataPktsOut: 3011 DupAcksIn: 2 ECNEnabled: 0 FastRetran: 0 MaxCwnd: 129940 MaxMSS: 1460 MaxRTO: 540 MaxRTT: 330 MaxRwinRcvd: 128480 MaxRwinSent: 16304 MaxSsthresh: 0 MinMSS: 1460 MinRTO: 280 MinRTT: 80 MinRwinRcvd: 64240 MinRwinSent: 16304 NagleEnabled: 1 OtherReductions: 1 PktsIn: 1513 PktsOut: 3011 PktsRetrans: 0 X_Rcvbuf: 103424 RcvWinScale: 7 SACKEnabled: 3 SACKsRcvd: 3 SendStall: 0 SlowStart: 88 SampleRTT: 270 SmoothedRTT: 270 X_Sndbuf: 103424 SndWinScale: 1 SndLimTimeRwin: 8914025 SndLimTimeCwnd: 1111125 SndLimTimeSender: 2588 SndLimTransRwin: 2 SndLimTransCwnd: 2 SndLimTransSender: 1 SndLimBytesRwin: 4020840 SndLimBytesCwnd: 375220 SndLimBytesSender: 0 SubsequentTimeouts: 0 SumRTT: 417670 Timeouts: 0 TimestampsEnabled: 0 WinScaleRcvd: 1 WinScaleSent: 7 DupAcksOut: 0 StartTimeUsec: 164475 Duration: 10030799 c2sData: 2 c2sAck: 2 s2cData: 9 s2cAck: 3 half_duplex: 0 link: 100 congestion: 0 bad_cable: 0 mismatch: 0 spd: 0.00 bw: 40.30 loss: 0.000001000 avgrtt: 276.42 waitsec: 0.00 timesec: 10.00 order: 0.0013 rwintime: 0.8889 sendtime: 0.0003 cwndtime: 0.1108 rwin: 0.9802 swin: 64.0000 cwin: 0.9914 rttsec: 0.276420 Sndbuf: 8388608 aspd: 10.02500 Checking for mismatch on uplink (speed > 50 [0>50], (xmitspeed < 5) [0.36<5] (rwintime > .9) [0.88>.9], (loss < .01) [1.0E<.01] Checking for excessive errors condition (loss/sec > .15) [1.0E>.15], (cwndtime > .6) [0.11>.6], (loss < .01) [1.0E<.01], (MaxSsthresh > 0) [0>0] Checking for 10 Mbps link (speed < 9.5) [0<9.5], (speed > 3.0) [0>3.0] (xmitspeed < 9.5) [0.36<9.5] (loss < .01) [1.0E<.01], (mylink > 0) [3.0>0] Checking for Wireless link (sendtime = 0) [3.0E=0], (speed < 5) [0<5] (Estimate > 50 [40.3>50], (Rwintime > 90) [0.88>.90] (RwinTrans/CwndTrans = 1) [2/2=1], (mylink > 0) [3.0>0] Checking for DSL/Cable Modem link (speed < 2) [0<2], (SndLimTransSender = 0) [1=0] (SendTime = 0) [3.0E-4=0], (mylink > 0) [3.0>0] Checking for half-duplex condition (rwintime > .95) [0.88>.95], (RwinTrans/sec > 30) [0.2>30], (SenderTrans/sec > 30) [0.1>30], OR (mylink <= 10) [3.0<=10] Checking for congestion (cwndtime > .02) [0.11>.02], (mismatch = 0) [0=0] (MaxSsthresh > 0) [0>0] estimate = 40.3 based on packet size = 11Kbits, RTT = 276.42msec, and loss = 1.0E-6 The theoretical network limit is 40.3 Mbps The NDT server has a 8192.0 KByte buffer which limits the throughput to 231.53 Mbps Your PC/Workstation has a 125.0 KByte buffer which limits the throughput to 3.54 Mbps The network based flow control limits the throughput to 3.58 Mbps Client Data reports link is 'T1', Client Acks report link is 'T1' Server Data reports link is '10 Gig', Server Acks report link is 'Ethernet' used thier optimal settings. help please.:::.. Download Stats ..::: Connection is:: 3417 Kbps about 3.4 Mbps (tested with 5983 kB) Download Speed is:: 417 kB/s Tested From:: https://testmy.net (server2) Test Time:: Tue Feb 14 10:51:56 EST 2006 Bottom Line:: 61X faster than 56K 1MB download in 2.46 sec Diagnosis: May need help : running at only 71.71 % of your hosts average (comcast.net) Validation Link:: https://testmy.net/stats/id-GXB78I2CJ Link to comment Share on other sites More sharing options...
trogers Posted February 14, 2006 CID Share Posted February 14, 2006 Where are you located? The reason you cannot achieve 90% speed at www.testmy.net is that your RTT to the US is too high. "estimate = 40.3 based on packet size = 11Kbits, RTT = 276.42msec, and loss = 1.0E-6 The theoretical network limit is 40.3 Mbps The NDT server has a 8192.0 KByte buffer which limits the throughput to 231.53 Mbps Your PC/Workstation has a 125.0 KByte buffer which limits the throughput to 3.54 Mbps The network based flow control limits the throughput to 3.58 Mbps" Your RTT of 276 ms is limiting your PC throughput to only 3.54 Mbps. If you try to increase buffer size to 250 Kbytes (DefaultWindowSize - 256960) your RTT will jump to 700+ ms raising your throughput to only 3.8-3.9 Mbps. If you are located in the US, you need to check your line quality or possible electromagnetic interference on your modem and router. If you are located overseas, it will be difficult to reduce RTT due to your distance and number of hops in getting to this test site. Link to comment Share on other sites More sharing options...
dnuge Posted February 14, 2006 Author CID Share Posted February 14, 2006 im located in phila, pa usa being a noob im not too comp. literate to change the settings in tcp optimizer. also i don't know if my isp, comcast.net is a pppoe network Link to comment Share on other sites More sharing options...
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