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Re: whither study()?
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From:
Father Chrysostomos
Date:
January 30, 2012 09:12
Subject:
Re: whither study()?
Message ID:
CB1A246E-858C-4BBD-AE45-4656E5A76272@cpan.org
On Jan 30, 2012, at 8:59 AM, demerphq wrote:
> On 30 January 2012 17:46, Father Chrysostomos <sprout@cpan.org> wrote:
>>
>> On Jan 30, 2012, at 12:23 AM, demerphq wrote:
>>
>>> On 29 January 2012 21:52, Father Chrysostomos <sprout@cpan.org> wrote:
>>>> demerphq wrote:
>>>>> study() breaks stuff. It is currently subtly broken. It has been
>>>>> broken for a long time. It is poorly tested. And ive never actually
>>>>> seen it used in the wild.
>>>>
>>>> Does the Perl core count as the wild?
>>>
>>> Umm, no. Quick look at the dancing bear! :-)
>>>
>>>>> Can we just no-op and
>>>>> deprecate it?
>>>>
>>>> Can you do that without slowing down splain?
>>>
>>> Does it really slow down splain?
>>
>> Er, yes, it does. But I don’t mean what you think I mean. Oh, the irony!
>>
>> The first two are *without* study. The last two *with* study.
>>
>> Pint:perl.git-copy sprout$ time ./perl -Ilib -Mdiagnostics -e 'warn "Died" for 1..50000' 2>/dev/null
>>
>> real 0m10.182s
>> user 0m9.916s
>> sys 0m0.062s
>> Pint:perl.git-copy sprout$ time ./perl -Ilib -Mdiagnostics -e 'warn "Died" for 1..50000' 2>/dev/null
>>
>> real 0m10.189s
>> user 0m9.908s
>> sys 0m0.059s
>> Pint:perl.git-copy sprout$ time ./perl -Ilib -Mdiagnostics -e 'warn "Died" for 1..50000' 2>/dev/null
>>
>> real 0m10.263s
>> user 0m10.025s
>> sys 0m0.058s
>> Pint:perl.git-copy sprout$ time ./perl -Ilib -Mdiagnostics -e 'warn "Died" for 1..50000' 2>/dev/null
>>
>> real 0m10.256s
>> user 0m10.010s
>> sys 0m0.058s
>>
>
> Please dont be cryptic -- I am not that clever. This looks to me like
> the ones with study() are slower.
That’s right.
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