Hi, For quite a few jobs which run on our system, 'seff' reports higher values for 'Memory Utilized' than 'jobstats' does via 'CPU memory usage' (see below for example of a job running on a single node). I was under the impression that 'seff' reports MaxRSS (from 'sacct'), whereas 'jobstats' reports 'Used' (from cgroups), which, as I understand it, is RSS plus page cache and possibly some kernel memory. Therefore, I would expect 'jobstats' to generally produce *larger* estimates of memory usage. However, the discrepancies I see seem always to be such that 'jobstats' report *lower* memory usage. Any thoughts on this? Cheers, Loris $ seff 25800851 Job ID: 25800851 Cluster: curta User/Group: foo/agbar State: COMPLETED (exit code 0) Nodes: 1 Cores per node: 24 CPU Utilized: 10-09:05:31 CPU Efficiency: 39.05% of 26-13:51:36 core-walltime Job Wall-clock time: 1-02:34:39 Memory Utilized: 18.12 GB Memory Efficiency: 28.64% of 63.28 GB (2.64 GB/core) $ jobstats 25800851 ================================================================================ Slurm Job Statistics ================================================================================ Job ID: 25800851 User/Account: foo/agbar Job Name: foobar State: COMPLETED Nodes: 1 CPU Cores: 24 CPU Memory: 64800MB (2.7GB per CPU-core) QOS/Partition: standard/main Cluster: curta Start Time: Mon Jun 8, 2026 at 3:53 PM Run Time: 1-02:34:39 Time Limit: 5-00:00:00 Overall Utilization ================================================================================ CPU utilization [||||||||||||||||||| 39%] CPU memory usage [||||| 11%] Detailed Utilization ================================================================================ CPU utilization per node (CPU time used/run time) c036.curta.zedat.fu-berlin.de: 10-09:03:12/26-13:51:36 (efficiency=39.0%) CPU memory usage per node - used/allocated c036.curta.zedat.fu-berlin.de: 7.1GB/63.3GB (304.3MB/2.6GB per core of 24) ... -- Dr. Loris Bennett (Herr/Mr) FUB-IT, Freie Universität Berlin