On Tuesday 13 November 2007 18:41, David Miller wrote: > From: Denys Vlasenko <vda.linux@xxxxxxxxxxxxxx> > Date: Tue, 13 Nov 2007 15:34:33 -0700 > > > My preferred solution is to make loop unrolling conditional on > > CONFIG_CC_OPTIMIZE_FOR_SIZE - and this is what is done in my > > (first) patch (see attached). This part: > > The default build is going to be CONFIG_CC_OPTIMIZE_FOR_SIZE > basically for everyone, this is what people get by default > and this is what every distribution uses. > > Therefore %99.9999 of folks will get the slowdown. > > So in my book this is not an acceptable way to deal with > this problem. Loop unrolling here amounts to 25% code growth: text data bss dec hex filename 21714 0 0 21714 54d2 camellia5.o 15906 0 0 15906 3e22 camellia5_Os.o Saving 25% or code size and going 5% slower is perfectly acceptable tradeof for some users. NB: I'm not saying all, ut some significant part of users would like to be able to have this choice. If CONFIG_CC_OPTIMIZE_FOR_SIZE is not an acceptable method, do you have other ideas? -- vda - To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
