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UID:pretalx-devconf-cz-2026-SU3SCD@pretalx.devconf.info
DTSTART;TZID=CET:20260619T131500
DTEND;TZID=CET:20260619T135000
DESCRIPTION:Achieving high VM density in Kubernetes demands advanced memory
  management. This talk details our journey building the VM higher density 
 solution for OpenShift Virtualization (KubeVirt).\n\nWith Kubernetes swap 
 previously in Beta\, we needed an immediate way to enable worker node swap
 . Enter wasp-agent: our custom project to mimic K8s swap externally. We wi
 ll explore the technical hurdles of this approach\, detailing our experime
 nts with Linux cgroups\, runtime hooks\, and evictions.\n\nAs we trace the
  solution’s evolution from Dev Preview to GA\, attendees will learn abou
 t memory overcommit mechanisms (FPR\, KSM). Crucially\, we'll detail our t
 ransition plan: deprecating wasp-agent to adopt the newly GA'ed native Kub
 ernetes swap\, highlighting the platform tunings required for maintainabil
 ity and consistency.\n\nFinally\, we'll evaluate deployment strategies\, c
 omparing Operator-driven automation against manual methods\, and the trade
 -offs of enabling swap at install-time vs on a running cluster.
DTSTAMP:20260430T125128Z
LOCATION:D0207 (capacity 90)
SUMMARY:High Density VMs in OpenShift: The Journey to Native K8s Swap - Igo
 r Bezukh\, Itamar Holder
URL:https://pretalx.devconf.info/devconf-cz-2026/talk/SU3SCD/
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