As mentioned in Chapter 6, the Perl tests take quite a bit of time when run with "make -k test". The testing framework used by Perl doesn't respect the -j option to make, so the tests never run in parallel.
There's another way to run the Perl test suite, using the test_harness make target and the TEST_JOBS variable; for example: TEST_JOBS=8 make test_harness (I picked 8 in this case based on trial and error and load averages on my quad-core system.) On my system, the test time went from 10m6s to 2m24s. The docs (https://perldoc.perl.org/perlhack.html#Parallel-tests) do point out a caveat that could make this less than ideal for LFS builders: There are some tests that supposedly become flaky when run in parallel, like dist/IO/t/ io_dir.t. However, I've run the suite several times this way, and have yet to see any new failures (the expected Compress-Raw-Zlib and IO-Compress failures still occur, of course). dist/IO/t/io_dir.t is always reported as "ok". A slight oddity of running this way is that the output is a bit different. Skipped tests have additional information about why they're skipped, and the final report on test failures is more detailed. Thanks! -- http://lists.linuxfromscratch.org/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
