| From: | John Naylor <johncnaylorls(at)gmail(dot)com> |
|---|---|
| To: | jian he <jian(dot)universality(at)gmail(dot)com> |
| Cc: | Jeff Davis <pgsql(at)j-davis(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Gurjeet Singh <gurjeet(at)singh(dot)im>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Change GUC hashtable to use simplehash? |
| Date: | 2024-01-08 02:43:39 |
| Message-ID: | CANWCAZbeG8vipVrvhHGd_5MDu414d6pMoYgCfJu49FJ8M3VbUw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Sat, Jan 6, 2024 at 9:01 AM jian he <jian(dot)universality(at)gmail(dot)com> wrote:
>
> latency average = 147.782 ms
> select * from bench_cstring_hash_unaligned(100000);
> latency average = 101.179 ms
> select * from bench_cstring_hash_aligned(100000);
> latency average = 101.219 ms
Thanks for testing again! This looks closer to my results. It doesn't
show improvement for the aligned case, but it's not worse, either.
There is still some polishing to be done, mostly on comments/examples,
but I think it's mostly there. I'll return to it by next week.
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