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From: Peter Eisentraut <[email protected]>
To: David Mullineux <[email protected]>
To: [email protected]
Subject: Re: Has gen_random_uuid() gotten much slower in v17?
Date: Wed, 11 Sep 2024 11:40:16 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAGsyd8XBE7Ksq2Z75CTStrjSswOjVUE8S+i7qq1hGvYRj+_bcA@mail.gmail.com>
References: <CAGsyd8XBE7Ksq2Z75CTStrjSswOjVUE8S+i7qq1hGvYRj+_bcA@mail.gmail.com>

On 10.09.24 15:58, David Mullineux wrote:
> I'm getting a bit concerned by the slow performance of generating uidds 
> on latest dev code versus older versions. Here I compare the time to 
> generate 50k random uuids. Both son the same machine.
> I must be missing something.

Are you sure that the 18devel installation isn't compiled with 
assertions enabled?

The underlying code for gen_random_uuid() is virtually unchanged between 
PG14 and current.

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