On Fri, Oct 27, 2023 at 01:31 PM, Bruce W4BRU wrote:
I'm not clear why we need a Rasp Pi 5 for the sBitX. I have demonstrated the
sBitX running SSB and also projecting a slide show (LO Impress) at the same
time. The Pi didn't even seem to be taxed at all.
The case where I see performance lags is if I spin the tuning dial even moderately fast. This could be a software issue or a hardware issue. One reason why I prefer the TUI (Gtk) over the GUI (browser) is that it is more responsive. It'll be interesting to me at least if those tuning lags are reduced both by (a) going to the new Pi OS, bookworm, that has a new graphics stack with Wayland instead of X Windows and (b) going to Pi 5 hardware. Farhan says in one of these threads that his performance profiling shows memory copying is the main user of time. Pi 5's memory system is like twice as fast as Pi 4 so I will find it interesting to see what kind of difference it makes. If Pi 4 is fine, then I'll re-purpose the Pi 5.
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Regards,
Dave, N1AI
Dave, N1AI