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Thomas Schwinge 04abe1944d Support parallel testing in libgomp: fallback Perl 'flock' [PR66005]
Follow-up to commit 6c3b30ef9e
"Support parallel testing in libgomp, part II [PR66005]"
("..., and enable if 'flock' is available for serializing execution testing"),
where we saw:

> On my Dell Precision 7530 laptop:
>
>     $ uname -srvi
>     Linux 5.15.0-71-generic #78-Ubuntu SMP Tue Apr 18 09:00:29 UTC 2023 x86_64
>     $ grep '^model name' < /proc/cpuinfo | uniq -c
>          12 model name      : Intel(R) Core(TM) i7-8850H CPU @ 2.60GHz
>     $ nvidia-smi -L
>     GPU 0: Quadro P1000 (UUID: GPU-e043973b-b52a-d02b-c066-a8fdbf64e8ea)
>
> ... [...]: case (c) standard configuration, no offloading
> configured, [...]

>     $ \time make check-target-libgomp
>
> Case (c), baseline; [...]:
>
>     1180.98user 110.80system 19:36.40elapsed 109%CPU (0avgtext+0avgdata 505148maxresident)k
>     1133.22user 111.08system 19:35.75elapsed 105%CPU (0avgtext+0avgdata 505212maxresident)k
>
> Case (c), parallelized [using 'flock']:
>
> [...]
>     -j12 GCC_TEST_PARALLEL_SLOTS=12
>     2591.04user 192.64system 4:44.98elapsed 976%CPU (0avgtext+0avgdata 505216maxresident)k
>     2581.23user 195.21system 4:47.51elapsed 965%CPU (0avgtext+0avgdata 505212maxresident)k

Quite the same when instead of 'flock' using this fallback Perl 'flock':

    2565.23user 194.35system 4:46.77elapsed 962%CPU (0avgtext+0avgdata 505216maxresident)k
    2549.38user 200.20system 4:46.08elapsed 961%CPU (0avgtext+0avgdata 505216maxresident)k

	PR testsuite/66005
	gcc/
	* doc/install.texi: Document (optional) Perl usage for parallel
	testing of libgomp.
	libgomp/
	* testsuite/lib/libgomp.exp: 'flock' through stdout.
	* testsuite/flock: New.
	* configure.ac (FLOCK): Point to that if no 'flock' available, but
	'perl' is.
	* configure: Regenerate.
2023-06-02 09:51:15 +02:00
c++tools Daily bump. 2023-04-01 00:17:38 +00:00
config Daily bump. 2022-11-15 08:32:29 +00:00
contrib Daily bump. 2023-05-19 00:17:43 +00:00
fixincludes Daily bump. 2023-03-29 00:17:01 +00:00
gcc Support parallel testing in libgomp: fallback Perl 'flock' [PR66005] 2023-06-02 09:51:15 +02:00
gnattools Daily bump. 2023-04-26 00:17:46 +00:00
gotools Daily bump. 2022-08-31 00:16:45 +00:00
include Daily bump. 2023-05-12 00:18:12 +00:00
INSTALL
intl Daily bump. 2022-11-24 00:17:47 +00:00
libada Update copyright years. 2023-01-16 11:52:17 +01:00
libatomic Remove stale Autoconf checks for Perl 2023-06-02 09:51:14 +02:00
libbacktrace Daily bump. 2023-03-29 00:17:01 +00:00
libcc1 Daily bump. 2023-05-19 00:17:43 +00:00
libcody Update Copyright year in ChangeLog files 2023-01-02 09:23:36 +01:00
libcpp Daily bump. 2023-05-10 00:17:49 +00:00
libdecnumber Update copyright years. 2023-01-16 11:52:17 +01:00
libffi Daily bump. 2023-05-07 00:16:40 +00:00
libgcc Daily bump. 2023-05-20 00:16:40 +00:00
libgfortran Daily bump. 2023-05-13 00:17:14 +00:00
libgm2 Remove stale Autoconf checks for Perl 2023-06-02 09:51:14 +02:00
libgo syscall: add prlimit 2023-05-11 09:17:48 -07:00
libgomp Support parallel testing in libgomp: fallback Perl 'flock' [PR66005] 2023-06-02 09:51:15 +02:00
libiberty Daily bump. 2023-04-03 00:16:43 +00:00
libitm Remove stale Autoconf checks for Perl 2023-06-02 09:51:14 +02:00
libobjc Daily bump. 2023-05-23 00:17:11 +00:00
libphobos Daily bump. 2023-03-18 00:16:40 +00:00
libquadmath Daily bump. 2023-03-03 00:16:38 +00:00
libsanitizer Daily bump. 2023-05-01 00:16:44 +00:00
libssp Update copyright years. 2023-01-16 11:52:17 +01:00
libstdc++-v3 Daily bump. 2023-06-02 00:17:38 +00:00
libvtv Update copyright years. 2023-01-16 11:52:17 +01:00
lto-plugin Daily bump. 2023-05-12 00:18:12 +00:00
maintainer-scripts Daily bump. 2023-04-21 00:17:31 +00:00
zlib Daily bump. 2022-11-24 00:17:47 +00:00
.dir-locals.el
.gitattributes
.gitignore .gitignore: do not ignore config.h 2022-07-19 17:07:04 +03:00
ABOUT-NLS
ar-lib
ChangeLog Daily bump. 2023-05-31 00:17:14 +00:00
ChangeLog.jit
ChangeLog.tree-ssa
compile
config-ml.in
config.guess
config.rpath
config.sub config.sub: change mode to 755. 2021-12-21 09:10:57 +01:00
configure configure: Only create serdep.tmp if needed 2023-04-21 13:16:08 -06:00
configure.ac configure: Only create serdep.tmp if needed 2023-04-21 13:16:08 -06:00
COPYING
COPYING.LIB
COPYING.RUNTIME
COPYING3
COPYING3.LIB
depcomp
install-sh
libtool-ldflags
libtool.m4 Generic configury support for shared libs on VxWorks 2022-10-11 07:31:07 +00:00
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
MAINTAINERS MAINTAINERS: Add myself as MIPS port maintainer 2023-06-02 10:06:37 +08:00
Makefile.def configure: Do not build the ununsed libffi shared library. 2022-12-31 17:51:47 +00:00
Makefile.in Disable warnings as errors for STAGEautofeedback. 2023-05-17 22:43:49 -07:00
Makefile.tpl Disable warnings as errors for STAGEautofeedback. 2023-05-17 22:43:49 -07:00
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README
symlink-tree
test-driver
ylwrap

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