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Apr 20, 2022 09:04 AM | David Cash
Bandwidth stats
Hi again-
I was wondering if you had any statistics on how much bandwidth the Guacamole-based remote desktop uses? I'm hoping to have all attendees on a workshop using the VM on AWS, but if that is achievable depends on bandwidth requirements of NITRC-CE and networking capabilities of the venue, with a backup plan being to have people with suitable laptops to install the VM on their own machine.
Thanks for any assistance you can provide.
Regards
Dave
David M. Cash, Ph.D.
Principal Research Fellow
Dementia Research Centre
UCL Queen Square Institute of Neurology
http://www.ucl.ac.uk/drc
d.cash@ucl.ac.uk
I was wondering if you had any statistics on how much bandwidth the Guacamole-based remote desktop uses? I'm hoping to have all attendees on a workshop using the VM on AWS, but if that is achievable depends on bandwidth requirements of NITRC-CE and networking capabilities of the venue, with a backup plan being to have people with suitable laptops to install the VM on their own machine.
Thanks for any assistance you can provide.
Regards
Dave
David M. Cash, Ph.D.
Principal Research Fellow
Dementia Research Centre
UCL Queen Square Institute of Neurology
http://www.ucl.ac.uk/drc
d.cash@ucl.ac.uk
Apr 20, 2022 08:04 PM | Christian Haselgrove
RE: Bandwidth stats
Hi again Dave,
That's a really good question. I ran FreeView today for some visualization tasks and Gaucamole averaged about 85 KB/s. Keep in mind that I was making a point to be fairly active during my test -- if your workshop is anything like those I've seen, there will be significant downtime while some participants pause with questions and others rush ahead and then have to wait.
Do let me know if I can help in any way with an assessment of the venue.
c
That's a really good question. I ran FreeView today for some visualization tasks and Gaucamole averaged about 85 KB/s. Keep in mind that I was making a point to be fairly active during my test -- if your workshop is anything like those I've seen, there will be significant downtime while some participants pause with questions and others rush ahead and then have to wait.
Do let me know if I can help in any way with an assessment of the venue.
c
Apr 25, 2022 11:04 AM | David Cash
RE: Bandwidth stats
Hi Christian-
Thanks for that, and very encouraging (thank goodness for efficient remote desktop solutions or our department would have been a mess over the pandemic). We are planning as a pre-conference workshop at a hotel that claimed they could provide 5 Mbps, and we are aiming for roughly 30 attendees. So that sounds as if there will be enough slack for everyone to have their own VM, since as you said there will be lots of downtime, and it is going to be fairly self-paced, so unlikely that there will be lots of synchrony of high activity.
Can I ask how you measured the bandwidth? Was that from inside the VM or using some of Amazon's performance metric dashboards of the VM?
Many thanks for all of your help,
David Cash
Originally posted by Christian Haselgrove:
Thanks for that, and very encouraging (thank goodness for efficient remote desktop solutions or our department would have been a mess over the pandemic). We are planning as a pre-conference workshop at a hotel that claimed they could provide 5 Mbps, and we are aiming for roughly 30 attendees. So that sounds as if there will be enough slack for everyone to have their own VM, since as you said there will be lots of downtime, and it is going to be fairly self-paced, so unlikely that there will be lots of synchrony of high activity.
Can I ask how you measured the bandwidth? Was that from inside the VM or using some of Amazon's performance metric dashboards of the VM?
Many thanks for all of your help,
David Cash
Originally posted by Christian Haselgrove:
Hi again Dave,
That's a really good question. I ran FreeView today for some visualization tasks and Gaucamole averaged about 85 KB/s. Keep in mind that I was making a point to be fairly active during my test -- if your workshop is anything like those I've seen, there will be significant downtime while some participants pause with questions and others rush ahead and then have to wait.
Do let me know if I can help in any way with an assessment of the venue.
c
That's a really good question. I ran FreeView today for some visualization tasks and Gaucamole averaged about 85 KB/s. Keep in mind that I was making a point to be fairly active during my test -- if your workshop is anything like those I've seen, there will be significant downtime while some participants pause with questions and others rush ahead and then have to wait.
Do let me know if I can help in any way with an assessment of the venue.
c
Apr 25, 2022 06:04 PM | Christian Haselgrove
RE: Bandwidth stats
Can I ask how you measured the bandwidth? Was
that from inside the VM or using some of Amazon's performance
metric dashboards of the VM?
I used darkstat installed on the CE, so I was watching the network locally and directly. I did curl dumps to files on the CE to make sure its reporting wasn't included in the stats.
We are planning as a pre-conference workshop at
a hotel that claimed they could provide 5 Mbps, and we are
aiming for roughly 30 attendees.
You might want to verify that it's megabytes and not megabits per second. :)
c