On Mon, 24 Apr 2000, Brian O'Shea wrote:
> On Sun, Apr 23, 2000 at 09:21:15PM -0700, Jason Evans wrote:
> >
> > FreeBSD's libc_r does not use clone() or anything similar. Instead, it is
> > a userland call conversion library that multiplexes threads in a single
> > process. This style of threads library should perform well for the type of
> > application you are dealing with.
>
> I was under the impression that, because user thread scheduling is done
> in user mode, a thread that goes to sleep calling a blocking read()
> system call will put the entire process to sleep until that read()
> returns (and so all user threads in the process will also be blocked).
> Is this correct?
1. You are mistaken.
> If it is, it sounds like a user thread implementation would be bad for
> Mr. Keahan's application, and something like the LinuxThreads port might
> be more appropriate.
>
> >
> > Note that there is also ports/devel/linuxthreads, which is based on
> > rfork(), which can be made to behave like Linux's clone().
> >
> > Jason
>
> Please correct me if I am wrong.
Go To 1. ;-)
--
Dan Eischen
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