Hi. On Wed, Jul 24, 2019 at 06:54:42PM +0200, Matthias Böttcher wrote: > OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME > 307534 304741 99% 0,20K 16186 19 64744K vm_area_struct > 14280 14274 99% 3,69K 1785 8 57120K task_struct > 178048 152224 85% 0,25K 11128 16 44512K filp > 8536 8536 100% 4,00K 1067 8 34144K kmalloc-4096 > 14640 14640 100% 2,06K 976 15 31232K sighand_cache > > How can I detect what is eating up my memory in SUnreclaim (slab > unreclaimable)?
You did it already. "vm_area_struct" is a kernel structure for anonymous memory allocations. "task_struct" is a kernel structure for maintaining process execution. "filp" is a kernel structure for virtual memory. My guess is - a small number of processes that constantly allocate memory in small numbers by executing brk(2) or its modern equivalents. Or a relatively large number of short-lived processes. I'd start with "pidstat -rl 1 10". Reco
