On Mon, 14 Mar 2016 14:31:50 +0800 JQK <jq...@redhat.com> wrote: > # env time grep -w -f <(seq 200000) <(shuf -i 1-200000 -n 250) > : > 288.77user 64.23system 10:35.71elapsed 55%CPU (0avgtext+0avgdata > 3492784maxresident)k > 8967032inputs+0outputs (154389major+1493890minor)pagefaults 0swaps
The issue also reproceduces for following. $ env time grep -w -f <(seq 200000) </dev/null grep matcher searches with a lazy deterministic automaton, but it is not good at the big pattern. This bug resembles bug#21763 and bug#22239.
