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Tweakable madvise
guillaume at varnish-software
Jun 15, 2016, 5:25 AM
Post #1 of 4 (1072 views)
Permalink
I re-read some performance concerns about the file storage and remembered
that I said I'd send a patch, probably a year ago. So here we go.

The only thing it does is exposing the madvise parameter to the user, in
practice, it helps performance for big objects and/or rotational disk when
using MADV_SEQUENTIAL on Linux.

--
Guillaume Quintard

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Re: Tweakable madvise [ In reply to ]
phk at phk
Jun 27, 2016, 1:47 AM
Post #2 of 4 (1039 views)
Permalink
--------
In message <CAJ6ZYQyjuCsnnAL6J0NygCNeBvQ9VAccWDk8C2OJYSe6awLKdA@mail.gmail.com>
, Guillaume Quintard writes:

>I re-read some performance concerns about the file storage and remembered
>that I said I'd send a patch, probably a year ago. So here we go.

Uhm, can you make this a pull request on github please ?


--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.

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Re: Tweakable madvise [ In reply to ]
guillaume at varnish-software
Jun 27, 2016, 8:39 AM
Post #3 of 4 (1039 views)
Permalink
Sure, old habits die hard.
On Jun 27, 2016 01:47, "Poul-Henning Kamp" <phk@phk.freebsd.dk> wrote:

> --------
> In message <
> CAJ6ZYQyjuCsnnAL6J0NygCNeBvQ9VAccWDk8C2OJYSe6awLKdA@mail.gmail.com>
> , Guillaume Quintard writes:
>
> >I re-read some performance concerns about the file storage and remembered
> >that I said I'd send a patch, probably a year ago. So here we go.
>
> Uhm, can you make this a pull request on github please ?
>
>
> --
> Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
> phk@FreeBSD.ORG | TCP/IP since RFC 956
> FreeBSD committer | BSD since 4.3-tahoe
> Never attribute to malice what can adequately be explained by incompetence.
>
Re: Tweakable madvise [ In reply to ]
slink at schokola
Jun 27, 2016, 10:05 AM
Post #4 of 4 (1039 views)
Permalink
Allowing to set MADV_DONTDUMP would help make coredumps on systems with huge
storage more manageable

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