Personal computing discussed
Moderators: renee, Steel, notfred
churin wrote:The transfer speed using the machine A is 15 min for 10GB file, and it is one(1) hour to do the same from the machine B.
churin wrote:The transfer speed using the machine A is 15 min for 10GB file, and it is one(1) hour to do the same from the machine B. I thought the latter would be faster contrary to what happened.
churin wrote:When I transfer file from A machine to B machine via Ethernet, I can do it using A or B. Is the transfer speed supposed to vary depending on which way it is done? How does the resource utilization differ between the two methods?
An incident that prompted me to ask the above is as follows: The machine A is Pentium 4M(2.4GHz) and the machine B is Phenom II x4(3.5GHz), and the network is Fast Ethernet(10/100). The transfer speed using the machine A is 15 min for 10GB file, and it is one(1) hour to do the same from the machine B. I thought the latter would be faster contrary to what happened.
streagle27 wrote:EDIT:
Double checked your details and calculated the following:
PC A: [email protected]
PC B: [email protected]
xfer 1 x 10GB file from A to B
Using A = 15min
Mb/s= 10GB/15min x min/60sec x 8Gb/GB x 1000Mb/Gb = 88.8Mb/s
10*8*1000
------------ = 88.88Mb/s
15*60
Using B = 60min
10*8*1000
------------- = 22.2Mb/s
60*60
Jason181 wrote:Streagle was measuring in megabits and you were measuring in megabytes. What he did kind of made sense since we're looking at the transfer rate in comparison to the theoretical maximum of 100 Mbps. But as you said, it's moot now.
just brew it! wrote:So you never actually *timed* it taking 1 hour?
absurdity wrote:just brew it! wrote:So you never actually *timed* it taking 1 hour?
Yeah, and like the man said, Windows time estimates are usually pretty worthless (anyone who's ever used explorer to copy a file should know that!).
Always, always try to reproduce the issue before reaching out for help. If you can't make it happen twice, it may not be a real problem.
absurdity wrote:Yeah, and like the man said, Windows time estimates are usually pretty worthless (anyone who's ever used explorer to copy a file should know that!).
kumori wrote:absurdity wrote:Yeah, and like the man said, Windows time estimates are usually pretty worthless (anyone who's ever used explorer to copy a file should know that!).
I think estimated times are much more accurate in Windows 8. In fact, I think the file transfer window is the best change I've noticed between Windows 8 and Windows 7.