Date: Mon, 21 Dec 1998 01:13:24 -0800 From: Mike Smith <mike@smith.net.au> To: Julian Elischer <julian@whistle.com> Cc: Mike Smith <mike@smith.net.au>, Ollivier Robert <roberto@keltia.freenix.fr>, "FreeBSD Current Users' list" <freebsd-current@FreeBSD.ORG> Subject: Re: Pb with COMPAT_LINUX_THREADS Message-ID: <199812210913.BAA51083@dingo.cdrom.com> In-Reply-To: Your message of "Mon, 21 Dec 1998 01:06:59 PST." <Pine.BSF.3.95.981221010437.8357X-100000@current1.whistle.com>
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> I agree with your suggestion, as long as I don't get crucified for > moving 300 bytes from the u area into malloc'd space. < 300k on a system capable of supporting 1000 processes - there are other things that I'd be worrying about at that point (like the size of the pagetables, which basically dwarf any other per-process overhead). > The ifdef'd version is to let people look at it and think about it.. > possibly as has been suggested, the malloc'd space might only be used if > there is a sharing of signals. Otherwise it might remain in the U area. That's certainly one way of doing it. You could implement structure compression by COW off the parent's copy of the struct instead, that'd be even more efficient. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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