Well, does it? Pi's are power managed in that they draw what they need based on what they're doing. Sure, the Pi 4 is capable of drawing more, but will it do so for the workload needs of WeeWx and related SW?
For one thing the Pi 4's new SoC is on paper 2-3x as efficient as a Pi 3, so things may either run ~2x as fast or waste fewer cycles getting the job done. Only way to know is to run exact same OS version and software stack on two different units side-by-side, and measure how many watts they're actually pulling nominally and during peak times and actually compare the two. YMMV. =D I'm holding out for the 4 GB Pi 4, which is out of stock already, where I live. Not needed for WeeWx, but as my main development platform, while a slower Pi Zero runs the code developed and unit tested on the Pi 4. I sure do like having a faster box so compile times are faster. =D And to that end, eventually there will be a 64-bit Raspbian on the official support train, in which case the additional memory will get me past some hurdles where the 2 GB virtual memory per process currently has me shutting off SW features that gcc/ gplusplus can't manage to build with only 2 GB VM. But I digress. ;-) Regards, \Leon -- Leon Shaner :: Dearborn, Michigan (iPad) > On Jun 27, 2019, at 11:05 AM, Robert Lorenzini <b...@llorenzini.com> wrote: > > Be aware that the 4 draws more power and runs hotter. > > Bob - wd6dod > >> On 6/27/2019 8:02 AM, vince wrote: >> Anybody have a raspi4 yet ? I'm curious what the time to process skins is >> on this one vs. a pi3b+ since the new one is reportedly much faster in >> general. >> -- >> You received this message because you are subscribed to the Google Groups >> "weewx-user" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to weewx-user+unsubscr...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/weewx-user/a54f93ad-79c8-4898-9119-9a67ecbaa2e3%40googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to weewx-user+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/76dbfbb6-ce59-87e0-8c15-2c4916000473%40llorenzini.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/171A9BC2-0B0E-44BE-9038-0CD8F6BFC674%40isylum.org. For more options, visit https://groups.google.com/d/optout.
