forwarded 503658 http://savannah.gnu.org/bugs/?14472 thanks
On Tue, Oct 28, 2008 at 02:57:05AM +0900, Chiaki wrote: > >Ubuntu had a similar bug report with the title "huge performance hit >for -i with UTF-8 locales" > >https://bugs.launchpad.net/ubuntu/+source/grep/+bug/75695 > >Caution: In it, it was suggested that open() calls to load proper >locale-specific runtime libraries may also add to the overhead. > >It is true, but the large amount of search time as observed can't be >explained by these open() calls alone. The search time is roughly a * >s + b (s being the input size, a and b are constants. 'b' here denotes >the overhead of initial open() calls for dynamic loading. Here the >problem is the VERY LARGE 'a' in the case of ja_JP.ujis and other >locales, it seems and 'b' is not much of a problem.) > >The ubuntu report states the bug is known upstream and the patch has >been proposed. (and the comment was dated 2008 summer). http://savannah.gnu.org/bugs/?14472 >I hope the fix will be made available to users soon. > >-- >int main(void){int j=2008;/*(c)2008 cishikawa. */ >char t[] ="<CI> @abcdefghijklmnopqrstuvwxyz.,\n\""; >char *i ="b>qtCIuqivb,gcwe...@.ietciuqi\"tqkvv is>dnamz"; >while(*i)((j+=(int)strchr(t,*i++)-(int)t),(j%=sizeof t-1), >(putchar(t[j])));return 0;}/* under GPL */ -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
