monero/.github/actions/set-make-job-count/action.yml
iamamyth f18b966a96 build: auto-set GitHub runner make job count
Dynamically determine an appropriate number of make jobs for the GitHub
runner container, based upon the number of available CPU cores and RAM,
using the rule that each job requires a dedicated core and 2.25GiB of RAM.
2025-01-16 11:53:46 -08:00

23 lines
1.1 KiB
YAML

name: 'set-make-job-count'
description: 'Set the MAKE_JOB_COUNT environment variable to a value suitable for the host runner'
runs:
using: "composite"
steps:
# Each job runner requires 2.25 GiB (i.e. 1024 * 9/4 MiB) memory and
# a dedicated logical CPU core
- name: set-jobs-macOS
if: runner.os == 'macOS'
run: |
echo MAKE_JOB_COUNT=$(expr $(printf '%s\n%s' $(( $(sysctl -n hw.memsize) * 4 / (1073741824 * 9) )) $(sysctl -n hw.logicalcpu) | sort -n | head -n1) '|' 1) >> $GITHUB_ENV
shell: bash
- name: set-jobs-windows
if: runner.os == 'Windows'
run: |
echo MAKE_JOB_COUNT=$(expr $(printf '%s\n%s' $(( $(grep MemTotal: /proc/meminfo | cut -d: -f2 | cut -dk -f1) * 4 / (1048576 * 9) )) $(nproc) | sort -n | head -n1) '|' 1) >> $GITHUB_ENV
shell: msys2 {0}
- name: set-jobs-linux
if: runner.os == 'Linux'
run: |
echo MAKE_JOB_COUNT=$(expr $(printf '%s\n%s' $(( $(grep MemTotal: /proc/meminfo | cut -d: -f2 | cut -dk -f1) * 4 / (1048576 * 9) )) $(nproc) | sort -n | head -n1) '|' 1) >> $GITHUB_ENV
shell: bash