On Sun, Feb 24, 2008 at 01:20:05PM +0100, Andi Kleen wrote: > On Sat, Feb 23, 2008 at 06:34:39PM -0800, Suresh Siddha wrote: > > Only allocate the FPU area when the application actually uses FPU, i.e., in > > the > > first lazy FPU trap. This could save memory for non-fpu using apps. > > Did you measure this making any difference? > > At least at some point glibc always touched the FPU once to initialize > it.
Simple kernel boot showed that only 20 or so tasks using FPU, out of 200 or so tasks running. thanks, suresh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
