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| author | Akilesh Kailash <akailash@google.com> | 2022-02-08 19:55:39 +0000 |
|---|---|---|
| committer | Akilesh Kailash <akailash@google.com> | 2022-02-08 20:00:39 +0000 |
| commit | f72860ce18e30b7167bcb4854cca7195587d8844 (patch) | |
| tree | 2150438165094556aafe6b18b5cbc02a8d5d14f6 | |
| parent | d183371cda26fd5b8a1d0dd25cbd84c1c76721e1 (diff) | |
| download | build-f72860ce18e30b7167bcb4854cca7195587d8844.tar.gz | |
Enable io_uring feature for virtual A/B OTA
snapuserd: Use io_uring READ/WRITE opcodes for snapshot merge.
Specifically, it is used only for readahead and ordered ops
code path.
Snapshot merge perf:
===========================================================
Incremental OTA of 300M between two git_master branches on Pixel 6:
===========================================================
On Android S (with dm-snapshot): ~15 minutes:
update_engine: [INFO:cleanup_previous_update_action.cc(330)] Merge finished with state MergeCompleted.
update_engine: [INFO:cleanup_previous_update_action.cc(130)] Stopping/suspending/completing CleanupPreviousUpdateAction
update_engine: [INFO:cleanup_previous_update_action.cc(501)] Reporting merge stats: MergeCompleted in 926508ms (resumed 0 times), using 0 bytes of COW image.
===========================================================
On Android T (with io_uring: ~38 seconds):
update_engine: [INFO:cleanup_previous_update_action.cc(330)] Merge finished with state MergeCompleted.
update_engine: [INFO:cleanup_previous_update_action.cc(130)] Stopping/suspending/completing CleanupPreviousUpdateAction
update_engine: [INFO:cleanup_previous_update_action.cc(501)] Reporting merge stats: MergeCompleted in 38868ms (resumed 0 times), using 0 bytes of COW image.
===========================================================
Bug: 202784286
Test: Full/Incremental OTA
Signed-off-by: Akilesh Kailash <akailash@google.com>
Change-Id: Ia6efff32898cdc6b683ca49c233ef45e8cd732e7
| -rw-r--r-- | target/product/virtual_ab_ota/compression.mk | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/product/virtual_ab_ota/compression.mk b/target/product/virtual_ab_ota/compression.mk index 88c58b87a0..d5bd2a5395 100644 --- a/target/product/virtual_ab_ota/compression.mk +++ b/target/product/virtual_ab_ota/compression.mk @@ -18,6 +18,7 @@ $(call inherit-product, $(SRC_TARGET_DIR)/product/virtual_ab_ota/launch_with_ven PRODUCT_VENDOR_PROPERTIES += ro.virtual_ab.compression.enabled=true PRODUCT_VENDOR_PROPERTIES += ro.virtual_ab.userspace.snapshots.enabled=true +PRODUCT_VENDOR_PROPERTIES += ro.virtual_ab.io_uring.enabled=true PRODUCT_VIRTUAL_AB_COMPRESSION := true PRODUCT_PACKAGES += \ snapuserd.vendor_ramdisk \ |