Simon Josefsson wrote:
> Has anyone noticed that test-lock takes a long time to complete on some
> systems? On my laptop it is fast:
...
> However on a otherwise idle machine with 2xE5520's (resulting in 16
> virtual CPUs), it takes much longer:
>
> jas@leo:~/gnutls-3.0.12/gl/tests$ time ./test-lock
> Starting test_lock ... OK
> Starting test_rwlock ... OK
> Starting test_recursive_lock ... OK
> Starting test_once ... OK
>
> real 1m49.893s
> user 1m31.874s
> sys 16m4.056s
> jas@leo:~/gnutls-3.0.12/gl/tests$
>
> Is there some scaling in the test that makes it take longer for
> multi-cpu machines? I didn't see any from a quick look.
>
> For comparison, my laptop is running debian squeeze and the multi-CPU
> machine is running Ubuntu 11.10 (i.e., libpthread is used on both
> machines).
Hi Simon,
Yes, I have seen precisely that problem, and it prompted this change in iwhd:
commit 8aa5b7111e46db425414ae33d5c07cef411e4630
Author: Jim Meyering <meyer...@redhat.com>
Date: Mon Mar 21 09:45:01 2011 +0100
tests: skip annoyingly long gnulib lock tests
* bootstrap.conf (avoided_gnulib_modules): Skip the lock tests.
They take too long.
diff --git a/bootstrap.conf b/bootstrap.conf
index c64c7ac..930ebda 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -15,6 +15,12 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
+# The lock test takes too long for my taste.
+avoided_gnulib_modules='
+ --avoid=lock-tests
+ --avoid=dummy
+'
+
# gnulib modules used by this package.
gnulib_modules='
announce-gen
