Hi, On Fri, Nov 09, 2012 at 02:45:45PM +0100, Michael Stahl wrote: > please argue more convincingly why we need this.
I just tried to get convincing numbers with a reproducable scenario, but cant. :/ But I an certain to have seen cache misses going up during a build when they shouldnt, as since Rene saw that too, I dont think I am seeing phantoms. Another sideeffect of the measurement is that we know that dep-checking costs ~30 seconds for a dev-install. Anyway, I will try to hunt down that ghost next time I see it. Best, Bjoern These are my results (make clean && dev-install, measuring the second run): with deps: cache hit (direct) 8663 cache hit (preprocessed) 41 cache miss 8672 called for link 880 called for preprocessing 164 compile failed 30 preprocessor error 20 bad compiler arguments 18 unsupported source language 2 autoconf compile/link 206 unsupported compiler option 1292 no input file 148 files in cache 25955 cache size 1.2 Gbytes max cache size 6.0 Gbytes 3 min 51 sec without deps: cache directory /home/bjoern/.ccache_upstream-master/ cache hit (direct) 8692 cache hit (preprocessed) 12 cache miss 8672 called for link 880 called for preprocessing 164 compile failed 30 preprocessor error 20 bad compiler arguments 18 unsupported source language 2 autoconf compile/link 206 unsupported compiler option 1292 no input file 140 files in cache 17472 cache size 916.8 Mbytes max cache size 6.0 Gbytes cache directory /home/bjoern/.ccache_upstream-master/ cache hit (direct) 8692 cache hit (preprocessed) 12 cache miss 8672 called for link 880 called for preprocessing 164 compile failed 30 preprocessor error 20 bad compiler arguments 18 unsupported source language 2 autoconf compile/link 206 unsupported compiler option 1292 no input file 140 files in cache 17472 cache size 916.8 Mbytes max cache size 6.0 Gbytes 3 min 20 sec build with empty ccache: 18 min ./autogen.sh --disable-mozilla --disable-binfilter --disable-odk --disable-postgresql-sdbc --disable-gnome-vfs --without-help --without-myspell-dicts --with-external-tar=/home/bjoern/.jenkins/jobs/upstreamtarballs/workspace --disable-zenity --with-system-libs --without-doxygen --without-system-vigra --without-system-sane --without-system-orcus --disable-extensions --disable-ext-report-builder --disable-scripting-beanshell --with-junit=/usr/share/junit-4/lib/junit.jar _______________________________________________ LibreOffice mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/libreoffice
