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!== !== Speed2.txt for Samba release 1.9.18p10 20 Aug 1998 !== Contributor: Paul Cochrane <paulc@dth.scot.nhs.uk> Organization: Dundee Limb Fitting Centre Date: Fri, 10 Apr 1998 Subject: Samba SPEED.TXT comment ============================================================================= This might be relevant to Client Tuning. I have been trying various methods of getting win95 to talk to Samba quicker. The results I have come up with are: 1. Install the W2setup.exe file from www.microsoft.com. This is an update for the winsock stack and utilities which improve performance. 2. Configure the win95 TCPIP registry settings to give better perfomance. I use a program called MTUSPEED.exe which I got off the net. There are various other utilities of this type freely available. The setting which give the best performance for me are: (a) MaxMTU Remove (b) RWIN Remove (c) MTUAutoDiscover Disable (d) MTUBlackHoleDetect Disable (e) Time To Live Enabled (f) Time To Live - HOPS 32 (g) NDI Cache Size 0 3. I tried virtually all of the items mentioned in the document and the only one which made a difference to me was the socket options. It turned out I was better off without any!!!!! In terms of overall speed of transfer, between various win95 clients and a DX2-66 20MB server with a crappy NE2000 compatible and old IDE drive (Kernel 2.0.30). The transfer rate was reasonable for 10 baseT. The figures are: Put Get P166 client 3Com card: 420-440kB/s 500-520kB/s P100 client 3Com card: 390-410kB/s 490-510kB/s DX4-75 client NE2000: 370-380kB/s 330-350kB/s I based these test on transfer two files a 4.5MB text file and a 15MB textfile. The results arn't bad considering the hardware Samba is running on. It's a crap machine!!!! The updates mentioned in 1 and 2 brought up the transfer rates from just over 100kB/s in some clients. A new client is a P333 connected via a 100MB/s card and hub. The transfer rates from this were good: 450-500kB/s on put and 600+kB/s on get. Looking at standard FTP throughput, Samba is a bit slower (100kB/s upwards). I suppose there is more going on in the samba protocol, but if it could get up to the rate of FTP the perfomance would be quite staggering. Paul Cochrane
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