Date: Thu, 03 Mar 2005 14:41:04 +0800 From: David Xu <davidxu@freebsd.org> To: Mike Silbersack <silby@silby.com> Cc: John Baldwin <jhb@freebsd.org> Subject: Re: cvs commit: src/sys/kern kern_sig.c Message-ID: <4226B180.7000403@freebsd.org> In-Reply-To: <20050303001403.W811@odysseus.silby.com> References: <200503021343.j22DhpQ3075008@repoman.freebsd.org> <200503020915.28512.jhb@FreeBSD.org> <4226446B.7020406@freebsd.org> <20050303033115.GA13174@VARK.MIT.EDU> <42269DB0.6070107@freebsd.org> <20050303052902.GA14011@VARK.MIT.EDU> <4226A46B.2090704@freebsd.org> <20050303060357.GA14180@VARK.MIT.EDU> <20050303001403.W811@odysseus.silby.com>
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Mike Silbersack wrote: > > On Thu, 3 Mar 2005, David Schultz wrote: > >> Of course, there's another possible solution which is to remove >> the swapping code entirely. That would certainly simplify things, >> but it would also make FreeBSD degrade less gracefully under load. > > > I don't think that would be a big loss; by the time you're doing a lot > of process swapping, you're pretty screwed. > > A process has to be swapped back in in order for it to be killed, > right? We might be better off without swapping, in that case. > > Mike "Silby" Silbersack > > Agree, some old ideas like swapping quickly rot away by new DRAM technology, RAM is so cheap, writting code for high speed swapping system? how fast will a machine be when doing heavy swapping ? this is a joke. Also in Embedded system, there is no swappping device, writting code for nothing only wastes time. We already have abliity to swap out user space memory, I think that's enough in most cases. David Xu
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