parallel-tests: optimize 'recheck' target for speed

With this change, the time required to execute the test case
'testsuite-recheck-speed.sh' has dropped as follows:

  + Slow Debian i686 system, 1 core x 1.5 GHz, 768 MB of RAM,
    GNU make 3.81:
      - 1 run: 6 minutes => 40 seconds

  + Fast Solaris 10 i686 system, 4 cores x 3 GHz, 20 GB of RAM,
    Solaris CCS make:
      - 4 runs: 3 minutes => 1 minute

  + Very fast Fedora ppc64 system, 64 cores x 3.5 GHz, 64 GB of RAM,
    GNU make 3.82:
      - 5 runs: 4 minutes => 1 minute 30 seconds

* lib/am/check.am (recheck): Optimize for speed, by avoiding lots of
forks with the help of ...
(am__list_recheck_tests): ... this new internal variable, basically
defining a proper awk program, and ...
(am__recheck_rx): ... this other new internal variable, used by the
one above.
* t/test-trs-recover2.sh: Relax by not checking for a very corner
case ('.log' and '.trs' files both unreadable) that we don't handle
anymore.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

1 files changed, 0 insertions, 10 deletions

diff --git a/t/test-trs-recover2.sh b/t/test-trs-recover2.sh
index 97268703d..a154ce709 100755
--- a/t/test-trs-recover2.sh
+++ b/t/test-trs-recover2.sh
@@ -80,16 +80,6 @@ test -r bar.trs
 grep '^PASS: foo\.test' stdout
 grep '^PASS: bar\.test' stdout
 
-: More complex interactions with "make recheck" are OK.
-chmod a-r bar.log bar.trs
-$MAKE recheck >stdout || { cat stdout; Exit 1; }
-cat stdout
-test -f bar.trs
-test -r bar.trs
-grep '^PASS: bar\.test' stdout
-grep 'foo\.test' stdout && Exit 1
-count_test_results total=1 pass=1 fail=0 xpass=0 xfail=0 skip=0 error=0
-
 : Recreate by remaking the global test log.
 chmod a-r foo.trs
 rm -f test-suite.log