Jean-Marc Lasgouttes wrote: > Le 07/01/2016 06:10, Pavel Sanda a écrit : >> The way to reproduce: >> my keyboard autorepeat: >> 1.xset r rate 300 180 >> 2. launch lyx & tutorial & fullscreen >> 3. hold right arrow key until you get to the end of the >> first page and then left arrow until you get to first character. >> >> This test yields approx.: >> 2.2: 32s >> 2.1: 16s >> 2.0: 14s >> >> I will send logs privately, they are not small. > > I reproduce the svg you sent for 2.2, since it is not so large either :)
More important is - can you reproduce the behaviour? It's pretty clear on my machine without trying any special conditions, just high repeat rate of the keyboard is needed. > And I think it can interest other people. > > Questions: > > * is this a 2.2 built in release mode? 2.2 was build with O2 & enabled debug symbols, 2.0 was release mode (i.e. including O2) but the completely stripped off the symbols after compilation. > * do the two lyx version use the same zoom and font settings? Yes. > * could you try to install some Qt dbg symbols so that we can see what is > happening in there? Unf I'm short of time to play with this now. Maybe later. > * how come that malloc does not appears in your 2.0 profile? I can see three reasons - the conversion from sysprof to readable output uses (adjustable) threshold for % of the routine to be included and malloc didn't make it for 2.0 - stripping debug symbols might affect sysprof - malloc is not that much used in 2.0 :) > * can you help me decipher what the % mean? For example, I see > [ Buffer::updateMacros 30.20% ] ----------15.07% ----------->[malloc > 30.21% ] > > I read it as: update macros takes 30% of total time, malloc too, and half > of malloc time is due to updateMacros. Is that right? Yep, sysprof should report % of total cpu usage (including other stuff running in the machine) and percentage in the routine should include time of all its subroutines (unlike gprof measurements IIRC). Pavel
