On 4 August 2011 19:37, jean-pierre charras <jp.char...@wanadoo.fr> wrote: > Le 04/08/2011 20:10, Wayne Stambaugh a écrit : >> >> On 8/4/2011 5:09 AM, Brian Sidebotham wrote: >>> >>> On 4 August 2011 03:25, Dick Hollenbeck<d...@softplc.com> wrote: >>>> >>>>> (My machine compiles the entire Kicad source in 3 mins 30 seconds, on >>>>> Ubuntu >>>>> x86_64, no wxWidgets, just Kicad.) >>>> >>>> $ make clean >>>> >>>> $ time make -j 5 >>>> >>>> real 3m0.329s >>>> >>>> Looks more like 3 minutes flat. >>>> >>>> But I compile for a living. >>>> >>> >>> Nice! On windows mingw32-make cannot run multiple jobs without >>> crashing so it is really limited; Annoying as I bought a quad core >>> processer with hyper threading for mingw32-make -j 7 >>> >>> D'oh! >>> >>> I am passing -DCMAKE_BUILD_TYPE=Release through to the KiCad build. I >>> expect it is still generating "debug" symbols though. I will have >>> another look tonight anyway and see what conclusions I can reach. >> >> I checked the release build on my machine and found the same thing. >> Running >> "strip --strip-all" made no difference in the size of eeschema.exe >> (11617280 >> bytes). It may just be that the static link version of wxWidgets (I'm >> using >> 2.9.2) is the culprit. Maybe it's time to start building and linking to >> wxWidgets dynamically instead of statically. This appears to be the way >> MinGW >> is heading judging by the dynamic libraries installed with GCC 4.5.2 (the >> default compiler when installing MinGW using mingw-get). I see no problem >> linking dynamically other than making sure all the required library >> dependencies are included when running "make install" and/or creating the >> Windows installer. >> >> Wayne >> > > I also made some tests. > > I can confirm tests made by Wayne. > But I am not sure the dynamic link solves the main issue: time to see the > Kicad window on screen. > I compiled Kicad using wxMSW 2.8.12 (the last stable version) and wxWidgets > 2.9.3 ( the SVN version) > under gcc 4.4 and 4.5.2 > > With the same compiler version, Kicad binaries, and wxWidgets libs > with 2.8.12 have a size that is roughly half the size of the 2.9.3 version. > > On my computer Eeschema is shown on screen about 2 seconds after launching > the binary, with 2.8 version. > With 2.9.3 Eeschema is shown on screen about 8 seconds or more after > launching the binary, with 2.9 version. > > Note when compiled with gcc 4.4, Eeschema (and other kicad applications) is > shown on screen faster. > > I am afraid this issue could be due to the fact wxWidgets has no more a > debug and a release version, > but only an unique version. > > If this is the case, this is a bad news. > > I also am afraid the use of dynamic libraries add more time to launch Kicad. > It fixes only the size of binaries, that is now a very minor problem. > > By the way, the SVN version works fine for me and has fixed annoying issues > found in Kicad. > > -- > Jean-Pierre CHARRAS
I also did some tests, it seems that the best way to get executable size down is to compile everything (including wxWidgets) with gcc options -ffunction-sections and -fdata-sections. Then add -Wl,--gc-sections to the linker options. This creates a section for all objects and then garbage collects those that are not referenced. I also added CXXFLAGS=-Os to the wxWidgets build stage. You can get eeschema down to ~9Mb. Those options would require a change to the KiCad CMakeLists.txt file though. I'm not sure it's worth it to save ~1Mb on the executable size. I don't get a delay running eeschema. I am compiling with gcc 4.5.2 and whatever I try I get less than a 2 second pause from double click to the eeschema window being shown. Maybe it is something particular to my config. I updated my cmake script to use wxWidgets 2.9.2 which should fix the localisation bug which previously needed patching to fix in 2.9.1. Kerusey, I have updated the script to place all kicad executables and the dll dependencies in a bin subdirectory so that you can run them in-place. Just update the script with bzr and run it again (It will download wxWidgets 2.9.2 source!) Best Regards, Brian. _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : kicad-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
