> On Sep 26, 2020, at 8:09 AM, Julien Rouhaud <rjuju123@gmail.com> wrote:
>
> Hi,
>
> On Sat, Sep 26, 2020 at 12:14 AM Li Japin <japinli@hotmail.com> wrote:
>>
>> Hi, hackers!
>>
>> I find the palloc0() is similar to the palloc(), we can use palloc() inside palloc0()
>> to allocate space, thereby I think we can reduce duplication of code.
>
> The code is duplicated on purpose. There's a comment at the beginning
> that mentions it:
>
> /* duplicates MemoryContextAllocZero to avoid increased overhead */
>
> Same for MemoryContextAllocZero() itself.
Thanks! How big is this overhead? Is there any way I can test it？
Best regards!
--
Japin Li
