| From: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
|---|---|
| To: | Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp> |
| Cc: | Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, amul sul <sulamul(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Rajkumar Raghuwanshi <rajkumar(dot)raghuwanshi(at)enterprisedb(dot)com>, Beena Emerson <memissemerson(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [HACKERS] path toward faster partition pruning |
| Date: | 2017-11-16 03:44:02 |
| Message-ID: | CAKJS1f92THmtoU5Mm+_ZFzgOqrQVaAwECsc9nrX1J_RRGr6xKA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On 16 November 2017 at 15:54, Kyotaro HORIGUCHI
<horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp> wrote:
> Anyway I added __attribute((noinline)) to the two
> functions and got the following result.
>
>> bms_add_range in 1.24 (12.4 ns per loop)
>> bms_add_range2 in 0.8 (8 ns per loop)
I see similar here with __attribute((noinline)). Thanks for
investigating that. Your way is clearly better. Thanks for suggesting
it.
--
David Rowley http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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