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add build property for compression_factor

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Compression factor, as discussed, should be a configurable build
property. This flag here will control that. From initial analysis, it
looks like 64k is a good default. go/variable-block-vabc-perf

Bug: 313962438
Test: th
Change-Id: I2bddede22655e36446e734ac1917be560b1a3a1b
This commit is contained in:
Daniel Zheng
2024-01-09 15:56:10 -08:00
parent 2fc519a568
commit 270130a025
3 changed files with 8 additions and 0 deletions
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3
core/product.mk
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@@ -447,6 +447,9 @@ _product_single_value_vars += PRODUCT_ENABLE_UFFD_GC
# specified we default to COW version 2 in update_engine for backwards compatibility
_product_single_value_vars += PRODUCT_VIRTUAL_AB_COW_VERSION
# Specifies maximum bytes to be compressed at once during ota. Options: 4096, 8192, 16384, 32768, 65536, 131072, 262144.
_product_single_value_vars += PRODUCT_VIRTUAL_AB_COMPRESSION_FACTOR
# If set, determines whether the build system checks vendor seapp contexts violations.
_product_single_value_vars += PRODUCT_CHECK_VENDOR_SEAPP_VIOLATIONS