Re: Compress ReorderBuffer spill files using LZ4

From: Julien Tachoires <julmon(at)gmail(dot)com>
To: Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>
Cc: pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Compress ReorderBuffer spill files using LZ4
Date: 2024-06-07 13:18:23
Message-ID: CAFEQCbFNpcJtjSM2=73WQX-5oyTiC=Y0yUYgwQYQZ2aOVVnWqw@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

Le ven. 7 juin 2024 à 05:59, Tomas Vondra
<tomas(dot)vondra(at)enterprisedb(dot)com> a écrit :
>
> On 6/6/24 12:58, Julien Tachoires wrote:
> > ...
> >
> > When compiled with LZ4 support (--with-lz4), this patch enables data
> > compression/decompression of these temporary files. Each transaction
> > change that must be written on disk (ReorderBufferDiskChange) is now
> > compressed and encapsulated in a new structure.
> >
>
> I'm a bit confused, but why tie this to having lz4? Why shouldn't this
> be supported even for pglz, or whatever algorithms we add in the future?

That's right, reworking this patch in that sense.

Regards,

JT

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Robert Haas 2024-06-07 13:24:41 Re: relfilenode statistics
Previous Message Robert Haas 2024-06-07 13:08:03 Re: race condition in pg_class