Re: Profiler already proving useful

[Rik]

On 07/22/2011 12:15 PM, Daniel Kraft wrote:
> Hi Rik,
> 
> On 07/22/11 20:39, Rik wrote:
>> I wanted to let you know that the profiler is already proving useful.  I
>> was taking a look at this issue report
>> (https://savannah.gnu.org/bugs/?33680) where the user complained of really
>> lengthy run times.  He had narrowed it down to a call to regexp() and
>> replacing it with strsplit seemed to improve matters.  Just for fun, I
>> decided to try the profiler and see what it thought.  Even without GUIs to
>> look over the data, it pointed the finger at an entirely different
>> function, strtrim().  Sure enough, I replaced strtrim with a call to
>> regexprep and got a 15X speedup. 
> 
> that's really nice to hear! :)
> 
> Regarding without GUIs: Since my last patch (which was pushed by Jordi
> recently), there's a function 'profshow' which can be used to print out
> the "hottest" functions in a table.

That looks good.  I was doing all of this with the first round of patches
and there wasn't even profile.m, just profiler_enable and profiler_data.
I'll be happy to use profshow from now on.

--Rik