[fpc-devel] Light weight threads for FPC
jonas.maebe at elis.ugent.be
Fri Dec 14 12:02:37 CET 2007
On 14 Dec 2007, at 11:44, Michael Schnell wrote:
>> No, TThread is either heavy or middle-weight, according to the
>> definitions at
> Of course it would be possible to include a multitasking scheduler
> in the RTL to avoid any system calls and share any resources.
> (AFAIK, for Linux there somewhere was an alternate PThread library
> that does exactly in order to avoid slight Posix incompatibilities
> caused by "Linux Threads". But same is not necessary any more as
> the OS-based NPTL is said to perform just as good and Posix-
> I.e. if using Linux with NPTL (or that old special PThread
> library), I don't see how you could use "lighter" threads than with
> If using Windows, (with it's quite heavy native Threads), pure user
> mode threads might be a lot "lighter".
Windows has built-in support for user-space scheduled threads.
They're called fibers (multiple fibers are bound to one thread; the
OS schedules threads and you pick which fiber runs).
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