WipeOut wrote:
Ow Mun Heng wrote:
Hi Guys,
I'm wondering what's the maximum sustained transfer rate
that one can experience when using a 100Mbps link?
Is there any way that I can determine what's the bottleneck?
FYI, I'm using iftop.
Transferring files between 2 PCs, (laptop and Desktop)
I see like up to 20MB/s.
Could this # be limited due to my slow HD? 4200rpm which
hdparm -t (or is it -T) gives ~26MB/s
1mbps = 1024/8 bits = 1 MB/s (I know there's a conversion
but I'm forgetful)
Cheers, Mun Heng,
Ow
Without compression and overhead 100Mb/s transtales to about 12.5MB/s..
Of course that is the theoretical maximum..
If you add overhead and contention you will probbaly see an actual
transfer of between 60Mb/s and 90Mb/s..
I am not sure how you have managed to see a throughput of 20MB/s on a
100Mb/s link..
Later..
I did a test between 2 machines here on a 100Mb switch and got about
8.2MB/sec tranfer. That is pretty close to 2/3 the theoretical maximum
without compression. Used a 650MB iso image for the test. Smaller
files would be different.
