Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 1d982ded authored by Juju Sung's avatar Juju Sung Committed by juju sung
Browse files

lmkd: Remove redundant free swap and free memory check 

lmkd can't kill processes because it has compare the size between free swap and free memory. Free swap is often larger than the free memory when system is under low memory with less swap-backed or swappable pages and finally leads to I/O thrashing.

Test: TreeHugger
Bug: 124727769
Change-Id: Ia2848859aa97a24bd13c704acee4b86cd2d3f647
parent ce912aad

lmkd/lmkd.c

+0 −10
Original line number Diff line number Diff line
@@ -1694,16 +1694,6 @@ do_kill: 
        static unsigned long report_skip_count = 0;



        if (!use_minfree_levels) {

            /* If pressure level is less than critical and enough free swap then ignore */

            if (level < VMPRESS_LEVEL_CRITICAL &&

                mi.field.free_swap > low_pressure_mem.max_nr_free_pages) {

                if (debug_process_killing) {

                    ALOGI("Ignoring pressure since %" PRId64

                          " swap pages are available ",

                          mi.field.free_swap);

                }

                return;

            }

            /* Free up enough memory to downgrate the memory pressure to low level */

            if (mi.field.nr_free_pages >= low_pressure_mem.max_nr_free_pages) {

                if (debug_process_killing) {