Re: [HTCondor-users] Cgroups v2 and memory limits for WLCG sites

[Alessandra <afortiorama@xxxxxxxxx>]

it is condor related the underlying memory accounting has changed and htcondor is still using the old definition.

whether one agrees or not with what cgroup v2 is doing is secondary they certainly are not going back.

In the meantime our community sites are either dropping the cached pages or removing the memory limit from the batch system (what do we have a batch system for is the question I ask myself lately).

cheers

alessandra

On Mon, 29 Jul 2024 at 10:32, Thomas Hartmann <thomas.hartmann@xxxxxxx> wrote:

Hi all,

AFAIS the issue is not necessarily Condor related but due to the
(unfortunate) cgroup design decisions to count all pages including
cached pages.

There should be a knob upcoming with 23.10 that includes an option to
sum up a memory footprint from the detailed cgroup statics virtual file
excluding cached pages [1].

Cheers,
 ÂThomas

[1]
https://github.com/htcondor/htcondor/pull/2575
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