Date: Tue, 1 Nov 2005 14:02:45 +0100 From: Marc Olzheim <marcolz@stack.nl> To: Max Khon <fjoe@samodelkin.net> Cc: Marc Olzheim <marcolz@stack.nl>, stable@freebsd.org Subject: Re: HEADS UP! 6.0-RELEASE coming Message-ID: <20051101130245.GE5237@stack.nl> In-Reply-To: <20051101123321.GA39888@samodelkin.net> References: <436116D3.908@samsco.org> <20051031151809.GA83253@stack.nl> <20051101004042.GA28233@samodelkin.net> <20051101112900.GA4903@stack.nl> <20051101123321.GA39888@samodelkin.net>
next in thread | previous in thread | raw e-mail | index | archive | help
--Pk6IbRAofICFmK5e Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Nov 01, 2005 at 06:33:21PM +0600, Max Khon wrote: > Hi! >=20 > On Tue, Nov 01, 2005 at 12:29:00PM +0100, Marc Olzheim wrote: >=20 > > > Linking against -lthr (or even -lc_r!) instead of -lpthread solves gdb > > > "The program no longer exists." problem for me on RELENG_6. > >=20 > > Well, yes, but that's not the same. While running on M:N KSE, all sorts > > of locking needs to be correct, which with non M:N threading you can get > > away with some (intentional or not) sloppiness. So debugging a fully > > threaded program with a non M:N threadlib is not always useful. >=20 > I do not think that maintaining M:N thread lib is feasible, given the lack > of resources. Solaris has already moved from M:N to 1:1. Linux (NPTL) is = 1:1 > as well. Well, each threading system has it's own application. Having an easy way to have one multithreaded process use multiple CPUs is a big win in any case. Especially in computationally intensive tasks... Marc --Pk6IbRAofICFmK5e Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDZ2d1ezjnobFOgrERAthQAKDPpJoRiATWrc+ltAGLjViCPtXSsACgql5C FMh9lJrh9Yu1OTYC+wXeTM4= =Ts/7 -----END PGP SIGNATURE----- --Pk6IbRAofICFmK5e--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20051101130245.GE5237>