tree aaf3cb04f1975e08470dfd29c4c332253282374d
parent b8c070708bbc6d0db544d4b04b530d6d03d39bb5
author Zac Medico <zmedico@gentoo.org> 1532547804 -0700
committer Zac Medico <zmedico@gentoo.org> 1532759516 -0700
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install-qa-check.d/60pngfix: parallel support (bug 630292)

If xargs supports the --max-procs option then use the makeopts_jobs
function from helper-functions.sh to generate a --max-procs argument.
Use xargs -L 1 to limit the number of png files per pngfix process,
in order to ensure that enough processes are spawned, since otherwise
xargs minimizes the number of processes spawned. A benchmark with
flightgear-data-2018.2.1 shows that larger values of -L only decrease
performance.

Bug: https://bugs.gentoo.org/630292
Reviewed-by: Lars Wendler <polynomial-c@gentoo.org>
Reviewed-by: Mike Gilbert <floppym@gentoo.org>