AW: LinuxThreads replacement

[Kai Mosebach]

Currently, im porting the SapDB (www.sapdb.org) to FreeBSD
(www.komadev.de/sapdb), which makes heavy use of the lthreads, but

1.) isnt running stable on 5.1 (not sure whether its a lthreads problem)
2.) is not the fastest (i guess)
3.) has more (especially memory) overhead

for example, for on database instance, there are about 80 (lthread)
processes hanging around.

So i thought of a simple complete recompiling.

Would you more likely use libthr or libkse, 
as kse is not complete yet, isnt it ?

regards

-----Ursprüngliche Nachricht-----
Von: Daniel Eischen [mailto:eischen at vigrid.com] 
Gesendet: Mittwoch, 9. Juli 2003 18:42
An: Kai Mosebach
Cc: freebsd-threads at freebsd.org
Betreff: Re: LinuxThreads replacement

On Wed, 9 Jul 2003, Kai Mosebach wrote:
> Hi,
> 
> can libthr / libkse easily be used as a liblthreads (LinuxThreads)
> replacement ?

I would doubt that you'd be able to copy (or use libmap.conf)
libthr/libkse over liblthreads.  I suspect that the mutex
types (and perhaps others) may be implemented differently
so that their sizes are incompatible.  For instance, if
linuxthreads defines pthread_mutex_t as a struct, that
wouldn't work when FreeBSD defines them to be pointers
to structs.  Actually, maybe that would work since the
FreeBSD types are not greater in size.  But there are
other possible problems -- pthread_cleanup_push() implemented
as macros in linuxthreads for one.

On the other hand, if you want to recompile something
that currently uses linuxthreads, it should work using
one of our thread libraries.

-- 
Dan Eischen