https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84402
David Binderman <dcb314 at hotmail dot com> changed:
What |Removed |Added
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CC| |dcb314 at hotmail dot com
--- Comment #72 from David Binderman <dcb314 at hotmail dot com> ---
I notice that the fixincludes/fixinc.sh script is single threaded.
On machines with only a few header files ( < 1000 ?) this
doesn't matter much, but some machines (i.e. mine) have 70,000
header files.
I use the following script to make sure the filesystem caches are not cold:
# Start
find /usr/include -name \*.h -print | wc -l
for i in `find /usr/include -name \*.h -print | awk -f awk.in`
do
echo $i
head -1 $i > /dev/null
done
# End
where awk.in is
{
if ((NR % 16) == 0) print $0;
};
This script and the awk file reduce a build time from 2-3 hours
to about 35 minutes on a 16 thread / 8 core machine.
Does fixincludes/fixinc.sh script need to made more parallel I wonder ?
