On Tue, May 6, 2014 at 10:55 AM, <j...@joshtriplett.org> wrote: > On Tue, May 06, 2014 at 01:16:43PM -0400, David Miller wrote: >> From: j...@joshtriplett.org >> Date: Tue, 6 May 2014 09:41:08 -0700 >> >> > Every KB of RAM costs real money and SoC die area (for eDRAM/eSRAM). >> >> Another poster commented that 16MB of DRAM would be cheaper than >> the 2MB of ram you have on these boards, probably one that fits >> your size profile is available as well. >> >> 2MB is just a rediculous restriction. > > Embedded systems experts disagree with you there; there *are* systems > where the most cost-efficient approach is a few MB (or a few hundred KB) > of non-discrete memory. We're not talking about socketed memory or even > soldered-down memory; we're talking about entire systems that fit on a > small SoC die. The space not used by that extra RAM may well be better > spent on CPU optimizations, or some other integrated component. > > Such boards will be built, and many of them will run Linux, despite your > incredulity. When you're building millions of a board, it's well worth > optimizing software to eliminate components from the bill of materials.
So why bothers 3.15+ Linux kernel? Why not use an old kernel e.g. 2.4.x? 2.4.x kernel doesn't have so many new features you want to get rid of here. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
