Re: Speed up COPY FROM text/CSV parsing using SIMD

On Thu, Feb 26, 2026 at 8:31 AM KAZAR Ayoub <ma_kazar(at)esi(dot)dz> wrote:

> Hello,
>
> On Thu, Feb 26, 2026 at 1:19 PM Nazir Bilal Yavuz <byavuz81(at)gmail(dot)com>
> wrote:
>
>> Hi,
>>
>> On Wed, 25 Feb 2026 at 17:24, Nazir Bilal Yavuz <byavuz81(at)gmail(dot)com>
>> wrote:
>> >
>> > I agree with you. However, unfortunately, I see regression on master +
>> > v10 compared to REL_18_3 (62d6c7d3df6).
>> >
>> > Thank you Kazar and Manni for benchmarks in [1] and [2]!
>>
>> Kazar and Manni, if possible could you please share the build commands
>> you use? I see regressions for an inlining patch (dc592a4155) too when
>> I build postgres with -O2.
>>
>> My build commands are:
>>
>> -O2: meson setup buildtype=debugoptimized ...
>>
>> -O3: meson setup buildtype=release ...
>
> All my builds are with CFLAGS='-O2 -g'
>
> Regards,
> Ayoub
>

Hello!

I have been building with this command:

meson setup build --prefix=/home/mwood/compiled-pg-instances/${BRANCH}
--buildtype=debugoptimized

And in my notes I have "If I use `--buildtype=debugoptimized` it optimizes
`-O2` and uses `-g`"

Best,
-Manni
--
-- Manni Wood EDB: https://www.enterprisedb.com