Mailinglist Archive: opensuse-bugs (15092 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=308698#c4


Bernd Strieder <strieder@xxxxxxxxxxxxxxxxxxxx> changed:

           What    |Removed                                         |Added
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                 CC|                                                |strieder@xxxxxxxxxxxxxxxxxxxx




--- Comment #4 from Bernd Strieder <strieder@xxxxxxxxxxxxxxxxxxxx>  2007-09-27 07:47:59 MST ---
just found that I can confirm the regression.

openSuSE 10.3 RC1 without utf8

> time nm *.o | LANG=C time grep -v " W " > link.nm
0.12user 0.13system 0:02.16elapsed 12%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+189minor)pagefaults 0swaps

real    0m2.179s
user    0m1.840s
sys     0m0.564s

openSuSE 10.3 RC1 with utf8

> time nm *.o | time grep -v " W " > link.nm
335.10user 0.08system 5:36.78elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+252minor)pagefaults 0swaps

real    5m36.819s
user    5m36.817s
sys     0m0.528s

For comparision SuSE 9.0 with the same hardware:

> time nm *.o | LANG=C time grep -v " W " > link.nm
0.04user 0.12system 0:08.58elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (134major+22minor)pagefaults 0swaps

real    0m8.611s
user    0m8.240s
sys     0m0.530s

Looking at the inner time output we are talking here about hundredths of
seconds vs.
hundreds of seconds, a factor of over 1000 at the given input size.

grep is used by so many scripts within about every distro, that this problem
could
become a show-stopper.


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