Magisk executes all service.sh scripts in late_start service mode, after the kernel initializes ZRAM but before Android’s user space swaps to it.
Once upon a time in the land of Android, a power user named noticed their high-end phone felt strangely sluggish. Despite having 12GB of RAM, the device seemed to hesitate during intense gaming sessions. Alex discovered a hidden background process called —a virtual compressed swap space that lives inside the physical RAM. disable zram magisk
: Deactivating zRAM can provide a slight performance boost because the CPU no longer needs to compress and decompress data in the background. Magisk executes all service
ZRAM is a Linux kernel feature that creates a compressed block device inside RAM. Instead of swapping to slow flash storage (like eMMC or UFS), Android uses ZRAM to store compressed memory pages. This effectively increases available memory at the cost of slight CPU overhead for compression/decompression. Alex discovered a hidden background process called —a
These modules typically utilize a simple script that runs during the boot process. The script locates the ZRAM block device (usually /dev/block/zram0 ) and runs the swapoff command, effectively turning off the virtual swap file before the OS fully loads.
There it was. /dev/block/zram0 . Type: partition. Size: 1.5GB. Used: 1.2GB. Priority: 100.