IR - Instruction Retired.
We measure them using callgrind to analyze micro-improvements.
See https://wiki.php.net/phpng#performance_evaluation for more details.
Thanks. Dmitry.
On Wed, Jan 14, 2015 at 5:56 PM, Alexander Kurilo wrote:
> Hi Xinchen,
>
>> my draft patch (which already get 0
Hi Xinchen,
my draft patch (which already get 0.1% IRs reduce in wordpress)
could you or anyone else help me understand what IR stands for?
Thanks in advance.
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On Mon, Jan 5, 2015 at 10:12 AM, David Zuelke wrote:
> This sounds reasonable, because given how the sort is *not* stable, there
> will be other cases (totally made up, but let's say ["a", "o", "O"]) where
> the swap does *not* happen. Consistency, and thus a stable sort, is better.
>
> But you'
Hi all,
On Wed, Jan 7, 2015 at 12:14 AM, David Zuelke wrote:
> > I am not sure about that. Introducing a not easy to catch BC break for
> > 0.1% gain on function (or even for the whole app) is not very
> > appealing.
> >
> > However, there is nothing in the documentation actually describing how
On 06.01.2015, at 05:42, Pierre Joye wrote:
> I am not sure about that. Introducing a not easy to catch BC break for
> 0.1% gain on function (or even for the whole app) is not very
> appealing.
>
> However, there is nothing in the documentation actually describing how
> it works and there are cl
hi :)
On Mon, Jan 5, 2015 at 9:08 AM, Xinchen Hui wrote:
> Hey:
>
> I was working on zend_qsort improvement. but I got a problem need
> to be disscussed with you fist..
>
> as we know, previously zend_qsort is not a stable sorting algo.
>
> my draft patch (which already get 0.1% I
On 5 January 2015 at 18:39, Xinchen Hui wrote:
> On Tue, Jan 6, 2015 at 2:04 AM, Tim Düsterhus wrote:
>> On 05.01.2015 18:08, Xinchen Hui wrote:
>>> do you think such BC break is acceptable? or I still need a RFC? :<
>>>
>>
>> Chiming in as a pure userland developer. The documentation already
On Tue, Jan 6, 2015 at 2:04 AM, Tim Düsterhus wrote:
> On 05.01.2015 18:08, Xinchen Hui wrote:
>> do you think such BC break is acceptable? or I still need a RFC? :<
>>
>
> Chiming in as a pure userland developer. The documentation already states:
>
>> Note: Like most PHP sorting functions, so
On Tue, Jan 6, 2015 at 2:12 AM, David Zuelke wrote:
> This sounds reasonable, because given how the sort is *not* stable, there
> will be other cases (totally made up, but let's say ["a", "o", "O"]) where
> the swap does *not* happen. Consistency, and thus a stable sort, is better.
yeah, I also
Sorry if someone receives this reply twice. I sent it by a different
alias by accident and apparently the sender confirmation does not work
properly.
On 05.01.2015 18:08, Xinchen Hui wrote:
> do you think such BC break is acceptable? or I still need a RFC?
>
Chiming in as a pure userland deve
On 05.01.2015 18:08, Xinchen Hui wrote:
> do you think such BC break is acceptable? or I still need a RFC? :<
>
Chiming in as a pure userland developer. The documentation already states:
> Note: Like most PHP sorting functions, sort() uses an implementation
of » Quicksort. The pivot is chose
This sounds reasonable, because given how the sort is *not* stable, there will
be other cases (totally made up, but let's say ["a", "o", "O"]) where the swap
does *not* happen. Consistency, and thus a stable sort, is better.
But you're saying your patch is "kind of a" stable sorting algo, so is
Hey:
I was working on zend_qsort improvement. but I got a problem need
to be disscussed with you fist..
as we know, previously zend_qsort is not a stable sorting algo.
my draft patch (which already get 0.1% IRs reduce in wordpress)
is kindof a stable sorting algo, you can find it
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