Load-balancing update_verifier worker threads.

Prior to this CL, the block verification works were assigned based on
the pattern of the ranges, which could lead to unbalanced workloads. This
CL adds RangeSet::Split() and moves update_verifier over.

a) For the following care_map.txt on walleye:

Measured the time costs prior to and with this CL with the following

$ cat test_update_verifier.sh

  adb shell stop
  adb shell "cp /data/local/tmp/care_map.txt /data/ota_package/"
  for i in $(seq 1 50)
    echo "Iteration: $i"
    adb shell "bootctl set-active-boot-slot 0"
    adb shell "echo 3 > /proc/sys/vm/drop_caches"
    adb shell "time /data/local/tmp/update_verifier"
    sleep 3

Without this CL, the average time cost is 5.66s, while with the CL it's
reduced to 3.2s.

b) For the following care_map.txt, measured the performance on marlin:

It takes 12.9s and 5.6s without and with the CL respectively.

Fixes: 68553827
Test: recovery_unit_test
Test: Flash new build and trigger update_verifier. Check the balanced
      block verification.
Change-Id: I5fa4bf09a84e6b9b0975ee5f522724464181333f
5 files changed
tree: bc3891d724748c24cb41bda94b0141113ed6791b
  1. applypatch/
  2. boot_control/
  3. bootloader_message/
  4. edify/
  5. etc/
  6. fonts/
  7. minadbd/
  8. minui/
  9. otafault/
  10. otautil/
  11. private/
  12. res-hdpi/
  13. res-mdpi/
  14. res-xhdpi/
  15. res-xxhdpi/
  16. res-xxxhdpi/
  17. tests/
  18. tools/
  19. uncrypt/
  20. update_verifier/
  21. updater/
  22. .clang-format
  23. adb_install.cpp
  24. adb_install.h
  25. Android.bp
  26. Android.mk
  27. asn1_decoder.cpp
  28. asn1_decoder.h
  29. bootloader.h
  30. CleanSpec.mk
  31. common.h
  32. default_device.cpp
  33. device.cpp
  34. device.h
  35. fuse_sdcard_provider.cpp
  36. fuse_sdcard_provider.h
  37. fuse_sideload.cpp
  38. fuse_sideload.h
  39. install.cpp
  40. install.h
  41. interlace-frames.py
  42. mounts.cpp
  43. mounts.h
  44. NOTICE
  45. OWNERS
  46. PREUPLOAD.cfg
  47. README.md
  48. recovery-persist.cpp
  49. recovery-persist.rc
  50. recovery-refresh.cpp
  51. recovery-refresh.rc
  52. recovery.cpp
  53. roots.cpp
  54. roots.h
  55. rotate_logs.cpp
  56. rotate_logs.h
  57. screen_ui.cpp
  58. screen_ui.h
  59. stub_ui.h
  60. ui.cpp
  61. ui.h
  62. verifier.cpp
  63. verifier.h
  64. vr_device.cpp
  65. vr_ui.cpp
  66. vr_ui.h
  67. wear_device.cpp
  68. wear_ui.cpp
  69. wear_ui.h

The Recovery Image

Quick turn-around testing

mm -j && m ramdisk-nodeps && m recoveryimage-nodeps

# To boot into the new recovery image
# without flashing the recovery partition:
adb reboot bootloader
fastboot boot $ANDROID_PRODUCT_OUT/recovery.img

Running the tests

# After setting up environment and lunch.
mmma -j bootable/recovery

# Running the tests on device.
adb root
adb sync data

# 32-bit device
adb shell /data/nativetest/recovery_unit_test/recovery_unit_test
adb shell /data/nativetest/recovery_component_test/recovery_component_test

# Or 64-bit device
adb shell /data/nativetest64/recovery_unit_test/recovery_unit_test
adb shell /data/nativetest64/recovery_component_test/recovery_component_test

Running the manual tests

recovery-refresh and recovery-persist executables exist only on systems without /cache partition. And we need to follow special steps to run tests for them.

  • Execute the test on an A/B device first. The test should fail but it will log some contents to pmsg.

  • Reboot the device immediately and run the test again. The test should save the contents of pmsg buffer into /data/misc/recovery/inject.txt. Test will pass if this file has expected contents.

ResourceTest validates whether the png files are qualified as background text image under recovery.

1. `adb sync data` to make sure the test-dir has the images to test.
2. The test will automatically pickup and verify all `_text.png` files in
   the test dir.