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| Thread ID: 35280 | 2003-07-07 12:38:00 | Network Speed | jerry_23 (3745) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 158083 | 2003-07-07 12:38:00 | I have two computers, one running Windows 98, the other running XP Home. When I transfered a 10 MB file, it took roughly 10-15 seconds...this sounds a bit slow. The speed of both network cards are 10.0 Mbps, and I am using cat 5e cables, so why does it take so long for a 10MB file to transfer? Is there a good network program that optimises speed? Also, is the 10.0 Mbps MEGABITS per second, or MEGABYTES? | jerry_23 (3745) | ||
| 158084 | 2003-07-07 12:51:00 | Hi Jerry I was the timing is reasonable already, 10-15 is acceptable for a 10MB files... I think the MBps is referring to megabits not megabytes.... it is similar to the modem speed... it said 56k, it actually shows as 5.6k, 128kb means 12.8 etc etc hope that helps jacky |
jackyht (3685) | ||
| 158085 | 2003-07-07 12:52:00 | sorry, i mean "i think", not "I was" on the 1st sentences | jackyht (3685) | ||
| 158086 | 2003-07-07 12:58:00 | Thanks. Yes, I sort of thought that was how it is too. I just thought it would've transfered quicker than that. | jerry_23 (3745) | ||
| 158087 | 2003-07-08 05:26:00 | Fast is not instantaneous. :D Get a null modem cable, set up Laplink or DCC, and try a transfer of a 10MB file at 2400 bps. Or even 9600. Or do it on papertape, with a 110 cps (fast) punch, and a 300 cps reader. You've all been spoiled. :D The fastest file transfers I have ever done was by driving a van with a few 2400ft magnetic tapes in the back. |
Graham L (2) | ||
| 158088 | 2003-07-08 06:03:00 | Peak utilisation on Ethernet is about 80-90% with 2 PCs and as the number of PCs increase on the segment or hub it reduces to about 40%. Given that 80% utilisation = 8 Mbits/s or 1 Mbyte/s = 10 seconds for 10 MByte file. Note there is also preamble, frame headers, tcpip headers and other sorts of headers and checksums depending on the protocol used. This can extend your time from 10 to the 15 seconds you mentioned. I agree with Graham L. I started file transfer at 300 bps. |
KiwiTT (4082) | ||
| 158089 | 2003-07-08 10:24:00 | > Peak utilisation on Ethernet is about 80-90% with 2 PCs and as the number of PCs > increase on the segment or hub it reduces to about 40%. > > Given that 80% utilisation = 8 Mbits/s or 1 Mbyte/s = 10 seconds for 10 MByte file. > Note there is also preamble, frame headers, tcpip headers and other sorts of headers > and checksums depending on the protocol used. This can extend your time from 10 to > the 15 seconds you mentioned. Well said! Also, don't forget that if you are comparing copying a 10MB file from one PC to another at your house, and then doing the same at a CyberCafe or work, you will find the difference is also due to the Lan's at those venues would most likely be 100mbps... CyberChuck |
cyberchuck (173) | ||
| 158090 | 2003-07-08 11:46:00 | OK, so let me get this straight. My 10Mbps card is transferring approx 1 Megabyte per sec? If this is right, then ok, its just that I always hear people referring to them as ten megaBYTE per sec cards ,which is in fact wrong then isn't it? No wonder I was wondering why it was so slow. Even at places like Dick Smith they call them Megabyte cards...misleading. Cheers to all for those words of wisdom. |
jerry_23 (3745) | ||
| 158091 | 2003-07-08 12:12:00 | 10Mb/s cards (10 mega BIT) transfer at roughly 500K/s (varies a bit depepnding on overhead etc). have a look here (www.wown.info). Dick Smith have sales people not techs ....and with all salespeople NEVER believe a word they say ;-) |
tweak'e (174) | ||
| 158092 | 2003-07-08 12:19:00 | lol, true . Maybe I should look into these 100 M E G A B I T deals then . |
jerry_23 (3745) | ||
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