Messages in this thread | | | Date | Thu, 25 Apr 2013 10:57:26 +0200 | From | Michal Marek <> | Subject | Re: [PATCH 8/8] kconfig: implement KCONFIG_PROBABILITY for randconfig |
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On 25.4.2013 00:29, Yann E. MORIN wrote: > From: "Yann E. MORIN" <yann.morin.1998@free.fr> > > Currently the odds to set each symbol is (rounded): > booleans: y: 50% n: 50% > tristates: y: 33% m: 33% n: 33% > > Introduce a KCONFIG_PROBABILITY environment variable to tweak the > probabilities (in percentage), as such: > KCONFIG_PROBABILITY y:n split y:m:n split > ----------------------------------------------------------------- > [1] unset or empty 50 : 50 33 : 33 : 34 > [2] N N : 100-N N/2 : N/2 : 100-N > N:M N+M : 100-(N+M) N : M : 100-(N+M) > N:M:L N : 100-N M : L : 100-(M+L)
I did a naive test with the current kconfig branch and with yem-kconfig-for-next:
$ git checkout a45c7df $ echo CONFIG_MODULES=y >all.config $ >test-orig; for i in `seq 1000`; do KCONFIG_ALLCONFIG=1 make randconfig || break; grep -c '=m' .config >>test-orig; done ... $ git checkout e43956e $ >test-new; ...
$ awk '{ sum += $1; num++ } END { print sum / num}' test-orig 573.247 $ awk '{ sum += $1; num++ } END { print sum / num}' test-new 565.194
I am not a statistician, but this looks OK to me. For reference, the figure was ~340 with the previous patch.
I pulled your changes to kbuild.git#kconfig.
Thanks, Michal
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