Ethernet speed is expressed in BITs per second. The smallest unit of data measurement. Now a byte on a 8 bit machine architecture is 8 BITs. This is where the PC started, with 8 BIT bytes. There are other machines out there that have 4 BIT Bytes and 16 BIT bytes and so forth. They all can and/or use communication over Ethernet.
Note: 1 Gigabit is denoted as 1 Gb. Notice the lowercase b, this stands for BIT. 100MB stands for Megabyte, uppercase B stands for BYTE. LAN speeds are usually expressed as 10/100/1000 Mbps. MEGA bits per second. Note that lower case b again. As Angus stated, the fastest data transmission you are going to get over 1 Gb Ethernet is ~100MB/s before saturation of the medium occurs (saturation occurs at ~50% utilization), depends on many factors. Angus is also completely right when stating a PC cannot transfer data at 650MB/s to its disk, this is based on an assumption that the disk is a SATA interface device and not something exotic such as a 8Gb fiber channel host bus adaptor into an storage array but then again that pesky PCIe bus gets in the way. Darin -----Original Message----- From: twsocket-boun...@elists.org [mailto:twsocket-boun...@elists.org] On Behalf Of Angus Robertson - Magenta Systems Ltd Sent: Friday, September 30, 2011 7:51 AM To: twsocket@elists.org Subject: Re: [twsocket] How do they accomplish Mbps of speed on singlesocket between co > I am not confusing bytes with bits! Our web stress tester displays > stats in BYTEs: www.fastream.com/webstresstester.php So how fast are the LAN ports on your PC and server? Or are you simply testing both on the same PC and ignoring a LAN completely, which is hardly a real life user test. And if you are able to read and write files at 650 Mbytes/sec, that's faster than any disk I've seen. Any stress testing that does not read or write files is fantasy. Angus -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
