| From: | Cédric Villemain <cedric(dot)villemain+pgsql(at)abcsql(dot)com> |
|---|---|
| To: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Melanie Plageman <melanieplageman(at)gmail(dot)com> |
| Subject: | Re: Streaming I/O, vectored I/O (WIP) |
| Date: | 2023-12-30 12:01:04 |
| Message-ID: | 1e28a879-907d-4bf1-a2c8-b89128cfc78f@abcsql.com |
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| Lists: | pgsql-hackers |
Le 11/12/2023 à 10:12, Thomas Munro a écrit :
> 3. smgrreadv/smgrwritev patch:
>
> * improved ENOSPC handling
> * improve description of EOF and ENOSPC handling
> * fixed the sizes reported in dtrace static probes
> * fixed some words in the docs about that
> * changed error messages to refer to "blocks %u..%u"
>
> 4. smgrprefetch-with-nblocks patch has no change, hasn't drawn any
> comments hopefully because it is uncontroversial.
>
> I'm planning to commit these fairly soon.
Thanks, very useful additions.
Not sure what you have already done to come next...
I have 2 smalls patches here:
* to use range prefetch in pg_prewarm (smgrprefetch only at the moment,
using smgrreadv to come next).
* to support nblocks=0 in smgrprefetch (posix_fadvise supports a len=0
to apply flag from offset to end of file).
Should I add to commitfest ?
---
Cédric Villemain +33 (0)6 20 30 22 52
https://Data-Bene.io
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