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Apr 30, 2024 · Use userspace lmkd in Android 10. In Android 9 and higher, userspace lmkd activates if an in-kernel LMK driver isn't detected. Because userspace lmkd requires kernel support for memory cgroups, the kernel must be compiled with the following configuration settings: CONFIG_ANDROID_LOW_MEMORY_KILLER=n CONFIG_MEMCG=y CONFIG_MEMCG_SWAP=y Kill strategies
UPDATE 3 (solution): The prop setting was working fine through Magisk, but "lmkd --reinit" is also required after reboot. After this the changes are taking effect. I mainly wanted to go back to the old lmk by setting "ro.lmk.use_minfree_levels true" so that I could disable ZRAM without the lmkd killing everything like crazy because ZRAM is low (0).
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ro.lmk.kill_heaviest_task: kill heaviest eligible task (best decision) vs. any eligible task (fast decision). Default = false. ro.lmk.kill_timeout_ms: duration in ms after a kill when no additional kill will be done. Default = 0 (disabled) ro.lmk.debug: enable lmkd debug logs, Default = false
How to switch to userspace lmkd. Starting in Android {{ androidPVersionNumber }}, userspace lmkd activates if an in-kernel lowmemorykiller driver is not detected. Note that userspace lmkd requires kernel support for memory cgroups. Therefore, to switch to userspace lmkd the kernel should be compiled with the following configuration settings:
Historically on Android systems memory monitoring and killing of non-essential processes was handled by a kernel lowmemorykiller driver. Since Linux Kernel 4.12 the lowmemorykiller driver has been removed and instead userspace lmkd daemon performs these tasks. Android Properties
Since Linux Kernel 4.12 the lowmemorykiller driver has been removed and instead userspace lmkd daemon performs these tasks. Android Properties. lmkd can be configured on a particular system using the following Android properties: ro.config.low_ram: choose between low-memory vs high-performance device. Default = false.
Historically on Android systems memory monitoring and killing of non-essential processes was handled by a kernel lowmemorykiller driver. Since Linux Kernel 4.12 the lowmemorykiller driver has been removed and instead userspace lmkd daemon performs these tasks.