| From: | John Naylor <john(dot)naylor(at)enterprisedb(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Jelte Fennema <me(at)jeltef(dot)nl>, Merlin Moncure <mmoncure(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: WIP Patch: Add a function that returns binary JSONB as a bytea |
| Date: | 2022-06-28 04:38:09 |
| Message-ID: | CAFBsxsHko7yc8A-2PpjQ=2StomXF+T2jgKF=WaMFZWi8CvV7hA@mail.gmail.com |
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| Lists: | pgsql-hackers |
I wrote:
> We can also shave a
> few percent by having pg_utf8_verifystr use SSE2 for the ascii path. I
> can look into this.
Here's a patch for that. If the input is mostly ascii, I'd expect that
part of the flame graph to shrink by 40-50% and give a small boost
overall.
--
John Naylor
EDB: http://www.enterprisedb.com
| Attachment | Content-Type | Size |
|---|---|---|
| use-sse2-verify-utf8.patch | text/x-patch | 5.4 KB |
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