Microthreads: wait( duration ) with minimal processor overhead, u
wware at world.std.com
Tue May 30 15:00:37 CEST 2000
Randall Hopper (aa8vb at yahoo.com) wrote:
> In Python, are normal threads kernel threads, and "microthreads"
> user-space threads? Is that the distinction?
That's right. Chris Tismer's Stackless Python allows you to grab an
instantaneous snapshot of the execution frame stack in the middle of
a computation. That is feasible because Python runs as bytecode on a
virtual machine, like compiled Java code.
Microthreads exploits that to permit switching between a bunch of
tasks all running at once. The overhead for a task is about 400 bytes.
You can run tens of thousands of microthreads simultaneously.
> (A python.org search turned up no useful information.)
Development is on-going, but you can get some useful information here:
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Resistance is futile. Capacitance is efficacious.
Will Ware email: wware @ world.std.com
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