On Tue, Feb 08, 2022 at 01:19:00AM -0700, Yu Zhao wrote: > Add /sys/kernel/mm/lru_gen/min_ttl_ms for thrashing prevention, as > requested by many desktop users [1]. > > When set to value N, it prevents the working set of N milliseconds > from getting evicted. The OOM killer is triggered if this working set > can't be kept in memory. Based on the average human detectable lag > (~100ms), N=1000 usually eliminates intolerable lags due to thrashing. > Larger values like N=3000 make lags less noticeable at the risk of > premature OOM kills. Refactored min_ttl into a separate patch as requested here: https://lore.kernel.org/linux-mm/YdxSUuDc3OC4pe+f@xxxxxxxxxxxxxx/ <snipped>
