grep -r speed fc2 vs. rh 6.1 (+X freeze/lockup)

[Gene Smith]

Gene Smith wrote, On 12/20/2004 11:45 AM:
> Tim Waugh wrote, On 12/20/2004 04:13 AM:
> 
>> On Sun, Dec 19, 2004 at 05:00:49PM -0500, Gene Smith wrote:
>>
>>
>>>> Try the grep package from FC3 updates -- I think it should work okay
>>>> on FC2 as well.
>>>
>>>
>>> Upgraded to grep-2.5.1-31.i386.rpm from a FC3 mirror and see no 
>>> improvement on my FC2 system.
>>
>>
>>
>> That's not it: you need the package from FC3 *updates*.
> 
> 
> All right! grep-2.5.1-31.2.i386.rpm from FC3 *updates* is as fast as 
> using LC_ALL=C with other versions running on FC2.  Thanks!
> 

Additional note: Longer strings or strings with regex in them take 
longer compared to just short simple string. Putting "env LC_ALL=C" in 
front of the grep makes the search time almost constant regardless of 
regex or string length.

Grain of sand note: Was running the Dec 16, 2004 kde rpm updates to FC2. 
Was getting lot of X lock-up when using this kde release. With the Dec 
16th kde, the FC3 grep would never complete when the string used regex 
constructs unless I did "env LC_ALL=C" in front. Downgraded back to 
previous kde (Sept 11, 2004) and now search completes w/o "env LC_ALL=C" 
in front.