MESSAGE
| DATE | 2020-04-14 |
| FROM | James E Keenan
|
| SUBJECT | Re: [Hangout - NYLXS] New York Perl Mongers Virtual Tech April
|
On 4/2/20 5:17 PM, Charlie Gonzalez wrote:
> New York Perl Mongers Virtual Tech Meetup
>
> Date: Tuesday, April 14th 2020
> Time: 05:30 PM - 07:00 PM EDT
>
> Speaker: Timm Murray
> Title: "Raspberry Pi and Perl" - How to get started with programming hardware with Perl
>
> Timm Murray is a Perl programmer from Madison, WI with 18 years of experience as a backend web programmer, and does hardware programming as a hobby.
>
Thanks to Timm for presenting, Softvision for sponsoring and Charlie for
organizing!
I was glad to see participants from the U.K. and the Philadelphia,
Pittsburgh and Toronto Perlmonger chapters!
Some technical points and questions and things to keep in mind for the
next time we do an online presentation ...
1. Like everybody I've had a lot of Zoom meetings over the past month.
This was the first time the meeting was using Zoom Pro. For some
reason, it seemed to be an enormous draw for my laptop (Ubuntu Linux
18.04; 4 cores). As measured by 'htop', at one point the zoom
executable was using an astounding 228% of CPU. At peak, the Load
factor was over 9! It appeared that there were more than a dozen Zoom
threads present at any time, each of which was using 6 to 8% of CPU.
At the start of the meeting the load was so high that I feared I had to
reboot, as my screen was immobilized for more than 60 seconds. I shut
off both Firefox and Thunderbird during the presentation. During most
of the presentation the load was between 4 and 5, though at points it
dipped to an acceptable 1.7.
Note that I've attended one other Zoom meeting with ~ 28 participants.
That did not appear to burden the CPU as this one did. That was regular
Zoom.
Any ideas on why this was happening? Can this be mitigated in the future?
2. If a meeting is going to be Zoom-cast, presenters may have to think
about the typefaces they're using on their slides. The monospace
Courier font used for the Perl code samples was very faint.
Again, thanks to all for participating.
Jim Keenan
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