On Thu 05-09-19 13:27:10, Stefan Priebe - Profihost AG wrote: > Hello all, > > i hope you can help me again to understand the current MemAvailable > value in the linux kernel. I'm running a 4.19.52 kernel + psi patches in > this case. > > I'm seeing the following behaviour i don't understand and ask for help. > > While MemAvailable shows 5G the kernel starts to drop cache from 4G down > to 1G while the apache spawns some PHP processes. After that the PSI > mem.some value rises and the kernel tries to reclaim memory but > MemAvailable stays at 5G. > > Any ideas? Can you collect /proc/vmstat (every second or so) and post it while this is the case please? -- Michal Hocko SUSE Labs
