Just set up SonicPi 3.3.1 (from the official .deb) on a fresh install of Raspberry Pi OS on a RPi 3B I had in the drawer.
Sonic Pi is using abt 50% to 100% CPU when idle according to top with default settings. Is this normal load?
Disabling the scope takes the CPU load down to 10%
I’m running the RPi headless, just VNC. That might be “confusing” the graphics rendering?
Running strace on the process shows it spinning “fast” on the syscalls shown below, repeated EAGAIN. Is this normal?
poll([{fd=5, events=POLLIN}, {fd=6, events=POLLIN}, {fd=9, events=POLLIN}, {fd=21, events=POLLIN}], 4, 813) = 1 ([{fd=5, revents=POLLIN}])
read(5, "\1\0\0\0\0\0\0\0", 16) = 8
recvmsg(6, {msg_namelen=0}, 0) = -1 EAGAIN (Resource temporarily unavailable)
recvmsg(6, {msg_namelen=0}, 0) = -1 EAGAIN (Resource temporarily unavailable)
Investigating /proc/fd// shows that fd 6 is a (unix) socket