all lists on lists.proxmox.com
 help / color / mirror / Atom feed
From: "DERUMIER, Alexandre" <Alexandre.DERUMIER@groupe-cyllene.com>
To: "pve-devel@lists.proxmox.com" <pve-devel@lists.proxmox.com>,
	"dietmar@proxmox.com" <dietmar@proxmox.com>
Subject: Re: [pve-devel] auto ballooning && ksm thresholds both at 80%
Date: Mon, 3 Jan 2022 08:20:21 +0000	[thread overview]
Message-ID: <cf76b90ee67864df7586ccbddf0537046620a009.camel@groupe-cyllene.com> (raw)
In-Reply-To: <1568079353.1966.1640961060895@webmail.proxmox.com>

Le vendredi 31 décembre 2021 à 15:31 +0100, Dietmar Maurer a écrit :
Currently both are at 80%,
that mean that ballooning is vm reducing memory fast, and ksm don't
have time to run.

as ballooning is a lot more intrusive than ksm, I wonder if it couldn't
be set to something like 90%.

That sounds reasonable to me, but can you see that theoretical effect when you run your test?


Hi Dietmar,
Happy new year ! (I'm currently in holiday this week, so, I check that next week)


I'll do more tests to be sure. (I don't use ballooning in production, but I'm a big user of ksm, I have some big nodes with something like 200GB ksm on 700GB servers).


My Idea behind this is to implement auto-balancing, vm migration, when memory threshold is between ksm && autoballoonig).

1) 80%: ksm
2) ~= 85-89% : auto balancing/migration
3) ~= 90% : auto ballonning
4) ~= 100% : swap



  reply	other threads:[~2022-01-03  8:20 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-31 14:31 Dietmar Maurer
2022-01-03  8:20 ` DERUMIER, Alexandre [this message]
  -- strict thread matches above, loose matches on Subject: below --
2021-12-30 10:47 DERUMIER, Alexandre

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=cf76b90ee67864df7586ccbddf0537046620a009.camel@groupe-cyllene.com \
    --to=alexandre.derumier@groupe-cyllene.com \
    --cc=dietmar@proxmox.com \
    --cc=pve-devel@lists.proxmox.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.
Service provided by Proxmox Server Solutions GmbH | Privacy | Legal