commit: 885a6df29cfa5e73483f33c05fef8dac3f7ec55a Author: Fabian Groffen <grobian <AT> gentoo <DOT> org> AuthorDate: Fri Feb 2 12:13:02 2024 +0000 Commit: Fabian Groffen <grobian <AT> gentoo <DOT> org> CommitDate: Fri Feb 2 12:13:02 2024 +0000 URL: https://gitweb.gentoo.org/repo/proj/prefix.git/commit/?id=885a6df2
scripts/bootstrap-prefix: change CPU usage suggestion for modern hardware Previous cap of 8 was based on old T1/T2. Nowadays we can use more. Suggest something along the lines of 50-75% of available CPUs to stay on the modest side. The user can override this in any case. Closes: https://bugs.gentoo.org/923617 Signed-off-by: Fabian Groffen <grobian <AT> gentoo.org> scripts/bootstrap-prefix.sh | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/scripts/bootstrap-prefix.sh b/scripts/bootstrap-prefix.sh index 4622dc5d3e..5cb6d9f265 100755 --- a/scripts/bootstrap-prefix.sh +++ b/scripts/bootstrap-prefix.sh @@ -2565,12 +2565,9 @@ EOF esac # get rid of excess spaces (at least Solaris wc does) ncpu=$((ncpu + 0)) - # Suggest usage of 100% to 60% of the available CPUs in the range - # from 1 to 14. We limit to no more than 8, since we easily flood - # the bus on those heavy-core systems and only slow down in that - # case anyway. - local tcpu=$((ncpu / 2 + 1)) - [[ ${tcpu} -gt 8 ]] && tcpu=8 + # Suggest usage of 50% to 75% of the available CPUs + [[ ${tcpu} -eq 0 ]] && tcpu=1 + local tcpu=$((((ncpu * 3) + 1) / 4)) [[ -n ${USE_CPU_CORES} ]] && tcpu=${USE_CPU_CORES} cat << EOF
