oxmc
90fa070c80
USB drive I/O stalls block jbd2 journal commits, which hangs system_server threads in uninterruptible sleep. The Android Watchdog fires at 30s and kills zygote before the drive recovers. Multiplying timeouts by 4 (120s) gives the USB drive enough time to complete without triggering the Watchdog.
17 lines
634 B
Makefile
17 lines
634 B
Makefile
# slow_storage.mk — optional include for devices with slow storage (SD card / USB).
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#
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# Limits dex2oat thread count and CPU affinity so background AOT compilation
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# cannot starve system_server and trigger the Android Watchdog.
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#
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# Usage (in a device makefile, e.g. pawlet_rpi4.mk):
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# include device/pawlet/rpi/slow_storage.mk
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PRODUCT_PROPERTY_OVERRIDES += \
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dalvik.vm.boot-dex2oat-cpu-set=0,1 \
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dalvik.vm.boot-dex2oat-threads=2 \
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dalvik.vm.dex2oat-cpu-set=0,1 \
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dalvik.vm.dex2oat-threads=2 \
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dalvik.vm.background-dex2oat-cpu-set=0 \
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dalvik.vm.background-dex2oat-threads=1 \
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ro.hw_timeout_multiplier=4
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