Help and CPU load

When help is loaded and active, my Pi 3 is stuck at 1200 MHz.
If I deactivate messages, it’s coming back to 600-1200 MHz depending on load.

Nota: is there a way to launch help in suspended mode?

Is that not what you would expect. Help has to keep polling the wimp to keep track of the window and icon the pointer is over. If either change it then has to send a message to the appropriate app.

Might be nice though if it throttled itself for a few cs with PollIdle between tests – no point trying to beat the screen refresh rate!

Came across this recently when adding Help support to MiniTime. Changing it to use Wimp_PollIdle (instead of Wimp_Poll) as Stuart suggests should reduce the load considerably without any ill effects.

Nota: is there a way to launch help in suspended mode?

Not directly I think but you could use a small BASIC task:

  DIM Block% 256

  SYS "Wimp_Initialise",400,&4B534154,"Launch Help",0 TO ,TaskHandle%
  SYS "Wimp_StartTask","Run <Help$Start>" TO HelpHandle%

  Block%!0  = 24
  Block%!4  = 0
  Block%!8  = 0
  Block%!12 = 0
  Block%!16 = &504
  Block%!20 = 1<<0
  SYS "Wimp_SendMessage",17,Block%,HelpHandle%

  SYS "Wimp_CloseDown"
  END

When help is loaded and active, my Pi 3 is stuck at 1200 MHz.

Steve Fryatt’s !Float does better, on this Titanium as measured by !CPUClock

Not directly I think but you could use a small BASIC task

Just brilliant!

Steve Fryatt’s !Float does better

Yep

CPU load issues should be fixed now.

https://www.riscosopen.org/viewer/revisions/logs?ident=1500828349-093568.html