AROS SMP Research: Technical Discussion

[bloodline]

It would be a little bit weird and amazing to have Carl Sassenrath contribute to AROS

[bloodline]

Often Forbid() or Disable() is called indirectly. Take this example:

Code: [Select]


sillypseudocode()
{
   SetTaskPri(SysBase->ThisTask, -128);
   PutMsg(port, msg);

   while (true)
      PutMsg(GetMsg(port));
}


Not quite relevant, but for SillySMP (currently) SysBase->ThisTask doesn't work anymore and you have to use findTask(null).

[bloodline]

@Itix: why do we need to halt multitask by using enable/disable ?
How do OS that support real SMP work ? I mean: what's the main difference with AmigaOS and "modern" OS ?

One of the key problems with AmigaOS design is the sheer amount of freedom to access system structures that it allows but there are plenty of design decisions that never considered the machine would ever have more than one CPU.