On Mon, 23 Jun 2003, David Schultz wrote: > On Sun, Jun 22, 2003, Sean Farley wrote: > > On Sat, 21 Jun 2003, David Schultz wrote: > > > > 2. GNU's grep is using libgnuregex. The speed-up by dds@ would not > > be felt? > > I was referring to freegrep, which I thought used the native libregex.
Yes, it does. I was just confused. > In any case, if freegrep solves problems that GNU grep has, has the > features people care about, is competitive in terms of performance, > and has no known major bugs, then I would have no objections to it. > As long as there are good technical reasons to switch, licensing > advantages and performance are the least critical issues in my mind. > We're not talking about a factor of 2, right? It varies. Simpler searches are handled within FreeGrep such as expressions with "^", "$" or ".". This is how GNU grep searches so quickly; it "cheats" before it falls-back to the regex library. More complex searches can hit the regex library and slow FreeGrep down. In those cases, the ones I have found, it is still below a factor of two difference. I usually do tests on /usr/src. I have seen FreeGrep take 1:10 while GNU's grep took 0:58. Interesting. I found that GNU's grep actually finds a match for "grep -ail freebsd /usr/ports/distfiles/*": /usr/ports/distfiles/ezm3 ezm3 is a directory with a filename that contains FreeBSD in it. Sean ----------------------- [EMAIL PROTECTED] _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
