He talk about a factor 2… according the units in the screenshots normally the ratio should be 1.048576 from MiB/s to MB/s that mean MB/s should be higher…
And megabits per second is written Mbps
MiB/s is mebibyte/sec.
The factor from MB/s to Mbps would be 8.
1MB/s = 8Mbps.
1MB/s = 0.95Mib/s
scp show you the actual data transfer speed of your file and the applet should show you all datas transferred with the network card.
that mean including the data overhead due to the protocols (tcp/ip headers and scp protocol) or data data size (encrypted if it’s the case).
It’s maybe because of that…
The applet don’t take into account the time to add headers etc… then the card actually transfer more data in less time… i hope I’m clear…
Let say scp send a chunk of 1MB of your file. The time scp calculate is from the time it sends the chunk to the kernel or its scp subsystem and the end time when it got the answer the transfer completed. But the kernel need time to add the headers, the scp protocol time and data etc… finally the data will be bigger, and the time to transfer it lower than what scp calculate… but the applet don’t know about that… he just look what is transferred on the card…
For scp, it transferred 1MB in maybe 1.4s… but the card actually transferred more than 1MB and in less than 1.4s