Messages in this thread | | | Date | Thu, 21 Mar 2002 21:16:12 +0200 | From | Ville Herva <> | Subject | Re: Linux 2.4.19pre3-ac4 |
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On Thu, Mar 21, 2002 at 04:28:52PM +0100, you [J.A. Magallon] wrote: > > On 2002.03.21 Adam Kropelin wrote: > > >> o The incredible shrinking kernel patch (Andrew Morton) > > > >Is there a magic incantation I need in order to see an improvement from this? > >I'm observing a slight (< 10 KB) increase from -ac3 to -ac4. Same .config, same > >compiler. > > > >I only build 2 modules; everything else is static. Perhaps Andrew's fix is for > >heavy module users? > > > > I think it gives about 100k size decrease IFF you have verbose BUG activated.
See http://marc.theaimsgroup.com/?l=linux-kernel&m=101663081100880&w=2 Subject: [patch] smaller kernels
and http://marc.theaimsgroup.com/?l=linux-kernel&m=101663080500800&w=2 [patch] x86 BUG handling
Of the latter, Andrew says: "kernel size is reduced by 90 kbytes relative to a CONFIG_DEBUG_BUGVERBOSE=y build" and of the former: "Kernel size is reduced by another 110 kbytes in my build."
The former is a duplicate string removal patch, and gcc >= 3 does most of that automatically, so you won't see the much difference. The latter only reduces kernel size compared to BUG_VERBOSE=y (and may slightly increase the size compared the BUG_VERBOSE=n).
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