id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
5345	Resolve (some of) parallelism bottlenecks in test suites	Xi Ruoyao	lfs-book	"There are some parallelism bottlenecks in test suites:

- Autoconf, Libtool, Tar, and maybe others
  - Solution: set `TESTSUITEFLAGS=-j$N` globally (like `MAKEFLAGS`)
- Automake (with more than 4 cores)
  - Solution: set `-j $(($N > 4 ? $N : 4))` instead of just `-j4`
- OpenSSL
  - Solution: `HARNESS_JOBS=$N make test`
- Perl
  - Solution: `TEST_JOBS=$N make test_harness`
- Binutils and Libffi
  - Not solvable, limitation of DejaGNU.  GCC has managed to resolve the issue but the solution is very complex."	enhancement	new	normal	12.1	Book	git	normal