On 8/27/2010 5:48 PM, Ralf Wildenhues wrote: > * Charles Wilson wrote on Fri, Aug 27, 2010 at 10:23:31PM CEST: >> Original: >> real 25m3.886s >> user 6m24.620s >> sys 11m13.787s >> >> With the functions moved ahead of func_mode_compile: >> real 24m34.235s >> user 6m30.590s >> sys 11m23.878s >> > Yes, but there is a significant speedup in real time!? That makes > little sense, unless the system was busy doing other things also, > for the first run.
Well, yeah -- it's windows. Who KNOWS what it is doing behind the scenes. Also, I was taking the time to compose all those other emails on the same machine; I've got two cores and was only running make -j1, but I'm not surprised there was some impact on the 'real' numbers. But that should not have affected the user and sys numbers. > 5% sucks a bit, fixing that should be a TODO item. It's closer to 3%: user: 6:24 = 384; 6 seconds = 1.5% sys: 11:13 = 673; 10 seconds = 1.5% Not great, and it would be nice to fix -- but not terrible. Also, I expect the impact on REAL operating systems would be less; I seem to recall that along with fork() performance, cygwin is really bad (slow) at parsing shell scripts. If we can do the magic m4 func_to_host guts-replacement, instead of using the indirection variables, that should help. But that is a longer term project. -- Chuck
