hi, Just wanted to have a look at memory report in the guest, on a recent test with no limits on the guest so it owns all the host ram as it is alone on it: I runned: free -k ; vserver myguest exec free -k; tail m*usage*; cat /proc/meminfo total used free shared buff/cache available Mem: 32899752 8337540 974416 75216 23587796 24016424 Swap: 3903484 386420 3517064 total used free shared buff/cache available Mem: 32899752 16993004 15439052 75216 467696 704392 Swap: 0 0 0 swap 0 is normal we do not allow guest to swap. But the used/free/buff-cache/available difference is quite large. The cgroup usage of the guest is: ==> memory.kmem.max_usage_in_bytes <== 648863744 ==> memory.kmem.tcp.max_usage_in_bytes <== 0 ==> memory.kmem.tcp.usage_in_bytes <== 0 ==> memory.kmem.usage_in_bytes <== 419672064 ==> memory.max_usage_in_bytes <== 33245798400 ==> memory.memsw.max_usage_in_bytes <== 33689448448 ==> memory.memsw.usage_in_bytes <== 18203516928 ==> memory.usage_in_bytes <== 17879355392 MemTotal: 32899752 kB MemFree: 974336 kB MemAvailable: 24016348 kB Buffers: 308972 kB Cached: 22811128 kB SwapCached: 84452 kB Active: 21965572 kB Inactive: 9233376 kB Active(anon): 6312276 kB Inactive(anon): 1841792 kB Active(file): 15653296 kB Inactive(file): 7391584 kB Unevictable: 12 kB Mlocked: 12 kB SwapTotal: 3903484 kB SwapFree: 3517064 kB Dirty: 124 kB Writeback: 0 kB AnonPages: 8013512 kB Mapped: 133524 kB Shmem: 75216 kB Slab: 550988 kB SReclaimable: 467696 kB SUnreclaim: 83292 kB KernelStack: 8112 kB PageTables: 34688 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 20353360 kB Committed_AS: 11809700 kB VmallocTotal: 34359738367 kB VmallocUsed: 0 kB VmallocChunk: 0 kB HardwareCorrupted: 0 kB AnonHugePages: 0 kB ShmemHugePages: 0 kB ShmemPmdMapped: 0 kB CmaTotal: 0 kB CmaFree: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 2890700 kB DirectMap2M: 30547968 kB DirectMap1G: 2097152 kB is there any way to be better at this ? -- cordialement, Ghislain