[Users] Custom settings for Kernel Same-page Merging (KSM)?

[Martin Sivak]

Hi Sven,

the reason is that the rule is a bit more complex now. KSM is started when free memory drops below 20% or if the ksm_shareable value gets above 80% of available memory.

the relevant rule in the policy is:

(defvar ksm_pressure_threshold (* Host.mem_available ksm_free_percent))
(defvar ksm_committed Host.ksm_shareable)

(if (and (> (+ ksm_pressure_threshold ksm_committed) Host.mem_available)
         (< (Host.StatAvg "mem_free") ksm_pressure_threshold))

Regards

--
Martin Sivák
msivak at redhat.com
Red Hat Czech
RHEV-M SLA / Brno, CZ


----- Original Message -----
> Hi,
> 
> any update why this may have happened?
> 
> Am 04.11.2013 21:02, schrieb Itamar Heim:
> > 
> > I'm more concerned by the fact ksm consumed RAM supposedly before memory
> > usage was >80%.--
> 
> Mit freundlichen Grüßen / Regards
> 
> Sven Kieske
> 
> Systemadministrator
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