Management console task speed vs. progress speed

[Karl Kornel]

Hello!

I have a question regarding the speed for a task (a transfer) as it appears in the Task Overview, vs. in the regular progress updates that you can see in the event log.

In the Task Overview, my understanding is that the Effective Speed is simply Bytes Transferred ÷ Task Duration (in seconds).  Do I have that correct?

For the progress entries that appear in the Event Log, are those speeds expressed in bytes per second or bits per second?  I think it's the latter.  And is that speed calculated over the duration mentioned in the progress entry?

For example, given this progress entry…

{
"bytes_transferred": 691121038,
"mbps": 83.82,
"duration": 65.96
}

Am I correct in saying that 691,121,038 bytes had been transferred, and the rate measured over the last 65.96 seconds has been 83.82 mbps (megabits per second)?

Thanks in advance for the confirmation or correction!

[Jack Kordas]

Hi Karl,

That is largely correct and there is some information here.

The one addition is that the Event Log info is performance information received over a single connection between the transfer service and the Globus Connect Server / GridFTP service.  There may be several such connections (concurrency) handling a single transfer request.

 Jack