From 8d54176c0a345955f630778fa48269d1f3ff7ca8 Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Mon, 7 Apr 2025 22:42:22 -0700 Subject: [PATCH] tests: hash-collision-perf: avoid test hang on GNU/Hurd This test would hang on GNU/Hurd because the perl code we use to measure subsecond duration isn't ported, and that loop would never terminate. * tests/hash-collision-perf: Add a 5-second timeout. Normal per-iteration duration is 200ms or less. Reported by Bruno Haible in https://bugs.gnu.org/77613 --- tests/hash-collision-perf | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tests/hash-collision-perf b/tests/hash-collision-perf index b9a5b51..d84b939 100755 --- a/tests/hash-collision-perf +++ b/tests/hash-collision-perf @@ -22,6 +22,7 @@ fail=0 require_perl_ +require_timeout_ : > empty || framework_failure_ @@ -31,7 +32,7 @@ require_perl_ n_pat=40000 while :; do seq $n_pat > in || framework_failure_ - small_ms=$(LC_ALL=C user_time_ 1 grep --file=in empty) || fail=1 + small_ms=$(LC_ALL=C user_time_ 1 timeout 5 grep --file=in empty) || fail=1 test $small_ms -ge 200 && break n_pat=$(expr $n_pat '*' 2) done @@ -39,7 +40,7 @@ done # Now, search for those same digits mapped to A-J. # With the PJW-based hash function, this became O(N^2). seq $n_pat | tr 0-9 A-J > in || framework_failure_ -large_ms=$(LC_ALL=C user_time_ 1 grep --file=in empty) || fail=1 +large_ms=$(LC_ALL=C user_time_ 1 timeout 5 grep --file=in empty) || fail=1 # Deliberately recording in an unused variable so it # shows up in set -x output, in case this test fails. -- 2.49.0.154.g9d22ac5122