Messages in this thread | | | Date | Fri, 12 Dec 2003 09:05:08 -0700 | From | Tom Rini <> | Subject | Re: [ANNOUNCE] -tiny tree for small systems (2.6.0-test11) |
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On Fri, Dec 12, 2003 at 09:59:48AM -0600, Matt Mackall wrote: > On Fri, Dec 12, 2003 at 08:44:43AM -0700, Tom Rini wrote: > > On Thu, Dec 11, 2003 at 09:37:34PM -0600, Matt Mackall wrote: > > > > > This is the first release of a new kernel tree dubbed '-tiny' (someone > > > already took -mm). The aim of this tree is to collect patches that > > > reduce kernel disk and memory footprint as well as tools for working > > > on small systems, an area Linux mainstream has been moving away from > > > since Linus got a real job. Target users are things like embedded > > > systems, small or legacy desktop folks, and handhelds. > > > > > > To get the ball rolling, I've thrown in about 50 patches that trim > > > various bits of the kernel, almost all configurable, and a fair number > > > may eventually be appropriate for mainline. All the config options are > > > currently thrown under CONFIG_EMBEDDED and many of the minor tweaks > > > are covered under a set of config options called CONFIG_CORE_SMALL, > > > CONFIG_NET_SMALL, and CONFIG_CONSOLE_SMALL. > > > > > > Nifty things I've included: > > > - building with -Os > > > - 4k process stacks (via -wli) > > > - configurable removal of printk, BUG, and panic() strings > > > - configurable HZ > > > - configurable support for vm86, core dumps, kcore, sysfs, aio, etc. > > > - a very nice kmalloc auditing system via /proc/kmalloc > > > - auditing of bootmem usage > > > - a system for counting inline instantiations > > > - my netpoll/netconsole patches > > > - my drivers/char/random fixups > > > > I'd like to suggest you check out the "tweaks" idea I tossed out here: > > http://www.ussg.iu.edu/hypermail/linux/kernel/0211.0/2229.html > > If this sounds interesting, I've got a version of the patch (albeit old > > and not applying directly right now I bet) that moved things into header > > files and got all of the dependancy stuff correct except for the initial > > run (so I think I was forcing an update with any make invocation, but > > there were no spurious recompiles). > > Looks cool. My only worry is that to do it right, it has to make some > fairly sweeping changes. I'm trying to keep the stuff in -tiny fairly > small and independent so that stuff can be cherry-picked, but if we > can get a consensus that "tweaks" is a good direction for mainline, it > might prove useful for some of the stuff I'm doing with > CONFIG_CORE_SMALL and friends now.
Well part of the problem that came up when this was brought up during 2.5 is that adding a whole bunch of CONFIG options for things Just Won't Happen (too complex, PITA, etc). OTOH however, lots of stuff like that keeps getting in.
-- Tom Rini http://gate.crashing.org/~trini/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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