Emulator stopping during mnesia writes
Thu May 11 03:30:08 CEST 2000
On Thu, May 11, 2000 at 12:18:29AM +0200, Klacke wrote:
> > k> In the longer run we have an async driver in the pipe which
> > k> schedules job to kernel threads. (if the os have them)
> > I've noticed a general reluctance not to introduce features that
> > aren't portable across all the platforms supported by Erlang.
> Well this one is pretty portable. In particular it is implementable
> on basically all platforms. Those platforms that don't support
> kernel threads (BSD*) will run just fine, except that the
> operation will not be performed asyncronously. It'll be just great
> on Solaris, win32, and now on linux with the pthreads/clone kit.
> Besides, we're not the otp crew, we're just another company
> that use erlang to deliver applications to our paying customers.
> If we need a feature, we implement it, if then that feature is
> not implemntable on , say VxWorks, well ....
> We ship the stuff we do to the otp crew and if they like it they
> take it. If they don't like it and we desperately need it, we need to
> reintroduce our fixes into the releases that come from the otp crew.
There is nothing wrong with using a whole process to do asynch I/O
operations if threads are not availible. Many high performance systems
do this. And if the I/O process segv's recovery is probably easier.
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