>> From: Minghao Chi <chi.minghao@xxxxxxxxxx> >> >> Available only when CONFIG_COMPACTION is set. When 1 is written to >> the file, all zones are compacted such that free memory is available >> in contiguous blocks where possible. >> But echo others-parameter > compact_memory, this function will be >> triggered by writing parameters to the interface. >> >> Applied this patch, >> sh/$ echo 1.1 > /proc/sys/vm/compact_memory >> sh/$ sh: write error: Invalid argument > >Didn't echo 2 > /proc/sys/vm/compact_memory used to work too? yes > >Why kill that? Did the docs say only 1 was possible? If not >perhaps the docs need to be updated? In Documentation/admin-guide/sysctl/vm.rst:109 say: when 1 is written to the file, all zones are compacted such that free memory is available in contiguous blocks where possible. So limit the value of interface compact_memory to 1. Chi, and Ye
