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Diffstat (limited to 'en/devices/tech/dalvik/configure.html')
| -rw-r--r-- | en/devices/tech/dalvik/configure.html | 125 |
1 files changed, 88 insertions, 37 deletions
diff --git a/en/devices/tech/dalvik/configure.html b/en/devices/tech/dalvik/configure.html index 79d61fdf..2018b9c5 100644 --- a/en/devices/tech/dalvik/configure.html +++ b/en/devices/tech/dalvik/configure.html @@ -104,7 +104,7 @@ enabled to work.</p> <p>Example usage (in product’s BoardConfig.mk):</p> -<pre><code>WITH_DEXPREOPT := true</code></pre> +<pre class="devsite-click-to-copy">WITH_DEXPREOPT := true</pre> <h3 id=dont_dexpreopt_prebuilts>DONT_DEXPREOPT_PREBUILTS</h3> @@ -116,8 +116,10 @@ to first boot time.</p> <p>Example usage (in product’s BoardConfig.mk):</p> -<pre><code>WITH_DEXPREOPT := true -DONT_DEXPREOPT_PREBUILTS := true</code></pre> +<pre class="devsite-click-to-copy"> +WITH_DEXPREOPT := true +DONT_DEXPREOPT_PREBUILTS := true +</pre> <h3 id=with_dexpreopt_boot_img_only>WITH_DEXPREOPT_BOOT_IMG_ONLY</h3> @@ -130,8 +132,10 @@ selectively disable app pre-optimization via <p>Example usage (in product’s BoardConfig.mk):</p> -<pre><code>WITH_DEXPREOPT := true -WITH_DEXPREOPT_BOOT_IMG_ONLY := true</code></pre> +<pre class="devsite-click-to-copy"> +WITH_DEXPREOPT := true +WITH_DEXPREOPT_BOOT_IMG_ONLY := true +</pre> <h3 id=local_dex_preopt>LOCAL_DEX_PREOPT</h3> @@ -152,7 +156,9 @@ APK signatures to remain valid.</p> <p>Example usage (in app’s Android.mk):</p> -<pre><code>LOCAL_DEX_PREOPT := false</code></pre> +<pre class="devsite-click-to-copy"> +LOCAL_DEX_PREOPT := false +</pre> <h3 id=product_dex_preopt_*>PRODUCT_DEX_PREOPT_*</h3> @@ -177,8 +183,10 @@ maximally used to improve first boot time.</p> <p>Example usage (in product’s device.mk):</p> -<pre><code>PRODUCT_DEX_PREOPT_DEFAULT_FLAGS := --compiler-filter=interpret-only -$(call add-product-dex-preopt-module-config,services,--compiler-filter=space)</code></pre> +<pre class="devsite-click-to-copy"> +PRODUCT_DEX_PREOPT_DEFAULT_FLAGS := --compiler-filter=interpret-only +$(call add-product-dex-preopt-module-config,services,--compiler-filter=space) +</pre> <p>These flags can also be used to selectively disable pre-optimization of a particular module or package by specifying <code>$(call @@ -187,7 +195,9 @@ product's device.mk file.</p> <p>Example usage (in product’s device.mk):</p> -<pre><code>$(call add-product-dex-preopt-module-config,Calculator,disable)</code></pre> +<pre class="devsite-click-to-copy"> +$(call add-product-dex-preopt-module-config,Calculator,disable) +</pre> <h2 id=other_odex>First boot installation of DEX_PREOPT files</h2> @@ -199,14 +209,17 @@ partition. They are then copied to the data partition on first boot.</p> <p>Example usage (in device-common.mk):</p> -<pre><code>PRODUCT_PACKAGES += \ +<pre class="devsite-click-to-copy"> +PRODUCT_PACKAGES += \ cppreopts.sh PRODUCT_PROPERTY_OVERRIDES += \ ro.cp_system_other_odex=1 -</code></pre> +</pre> <p>And in device's BoardConfig.mk:</p> -<pre><code>BOARD_USES_SYSTEM_OTHER_ODEX := true</code></pre> +<pre class="devsite-click-to-copy"> +BOARD_USES_SYSTEM_OTHER_ODEX := true +</pre> <p>See <a href="/devices/tech/ota/ab_updates.html#compilation">App compilation in background</a> to optionally include the compilation script and @@ -226,7 +239,9 @@ have to have its own copy, again wasting memory.</p> <p>Example usage (in product’s device.mk):</p> -<pre><code>PRODUCT_COPY_FILES += <filename>:system/etc/preloaded-classes</code></pre> +<pre class="devsite-click-to-copy"> +PRODUCT_COPY_FILES += <filename>:system/etc/preloaded-classes +</pre> <p class="note"><strong>Note:</strong> This line must be placed before inheriting any product configuration makefiles that get the default one from @@ -246,7 +261,9 @@ post-L in AOSP, a custom image classes list can be specified using <p>Example usage (in product’s device.mk):</p> -<pre><code>PRODUCT_DEX_PREOPT_BOOT_FLAGS += --image-classes=<filename></code></pre> +<pre class="devsite-click-to-copy"> +PRODUCT_DEX_PREOPT_BOOT_FLAGS += --image-classes=<filename> +</pre> <h2 id=compiled_classes_list>Compiled Classes List</h2> @@ -262,7 +279,9 @@ also be specified using <code>PRODUCT_DEX_PREOPT_BOOT_FLAGS</code>.</p> <p>Example usage (in product’s device.mk):</p> -<pre><code>PRODUCT_COPY_FILES += <filename>:system/etc/compiled-classes</code></pre> +<pre class="devsite-click-to-copy"> +PRODUCT_COPY_FILES += <filename>:system/etc/compiled-classes +</pre> <p class="note"><strong>Note:</strong> This line must be placed before inheriting any product configuration makefiles that get the default one from @@ -280,9 +299,13 @@ methods that are too large to be represented by the compiler’s internal representation. <li><em>speed</em> - compiles most methods and maximizes runtime performance, which is the default option. + <li><em>speed-profile</em> - compiles methods passed from a profile file + through the <em>--profile-file</em> option or <em>--profile-file-fd</em> option. <li><em>balanced</em> - attempts to get the best performance return on compilation investment. <li><em>space</em> - compiles a limited number of methods, prioritizing storage space. <li><em>interpret-only</em> - skips all compilation and relies on the interpreter to run code. + <li><em>verify-profile</em> - skips all compilation and only performs verification of methods passed + from a profile file through the <em>--profile-file</em> option or <em>--profile-file-fd</em> option. <li><em>verify-none</em> - special option that skips verification and compilation, should be used only for trusted system code. </ul> @@ -299,8 +322,10 @@ should enable PIC compilation.</p> <p>Example usage (in product’s device.mk):</p> -<pre><code>WITH_DEXPREOPT := true -WITH_DEXPREOPT_PIC := true</code></pre> +<pre class="devsite-click-to-copy"> +WITH_DEXPREOPT := true +WITH_DEXPREOPT_PIC := true +</pre> <p>Starting in Android 7.0, PIC compilation is enabled by default.</p> @@ -316,14 +341,18 @@ regressions may appear in benchmarking.</p> <p>Example usage (in product’s device.mk):</p> -<pre><code>WITH_ART_SMALL_MODE := true</code></pre> +<pre class="devsite-click-to-copy"> +WITH_ART_SMALL_MODE := true +</pre> <p>In future releases, this build option will be removed since it can be done with this (in product’s device.mk):</p> -<pre><code>PRODUCT_PROPERTY_OVERRIDES += \ +<pre class="devsite-click-to-copy"> +PRODUCT_PROPERTY_OVERRIDES += \ dalvik.vm.dex2oat-filter=interpret-only \ - dalvik.vm.image-dex2oat-filter=speed</code></pre> + dalvik.vm.image-dex2oat-filter=speed +</pre> <h2 id=dalvik_vm_properties>dalvik.vm Properties</h2> @@ -383,23 +412,29 @@ all that is necessary. <p>BoardConfig.mk:</p> -<pre><code>WITH_DEXPREOPT := true</code></pre> +<pre class="devsite-click-to-copy"> +WITH_DEXPREOPT := true +</pre> <p>If this causes the system image to become too large, the next thing to try is disabling pre-optimization of the prebuilts. <p>BoardConfig.mk:</p> -<pre><code>WITH_DEXPREOPT := true -DONT_DEXPREOPT_PREBUILTS := true</code></pre> +<pre class="devsite-click-to-copy"> +WITH_DEXPREOPT := true +DONT_DEXPREOPT_PREBUILTS := true +</pre> <p>Again, if the system image is still too large, try pre-optimizing only the boot image. <p>BoardConfig.mk:</p> -<pre><code>WITH_DEXPREOPT := true -WITH_DEXPREOPT_BOOT_IMG_ONLY := true</code></pre> +<pre class="devsite-click-to-copy"> +WITH_DEXPREOPT := true +WITH_DEXPREOPT_BOOT_IMG_ONLY := true +</pre> <p>However, limiting to pre-optimizing only the boot-image means all apps will have to be optimized on first boot. In order to avoid this, it is possible to @@ -413,12 +448,16 @@ potentially interpreting more code and impacting runtime performance. <p>BoardConfig.mk:</p> -<pre><code>WITH_DEXPREOPT := true -DONT_DEXPREOPT_PREBUILTS := true</code></pre> +<pre class="devsite-click-to-copy"> +WITH_DEXPREOPT := true +DONT_DEXPREOPT_PREBUILTS := true +</pre> <p>device.mk:</p> -<pre><code>PRODUCT_DEX_PREOPT_BOOT_FLAGS := --compiler-filter=space</code></pre> +<pre class="devsite-click-to-copy"> +PRODUCT_DEX_PREOPT_BOOT_FLAGS := --compiler-filter=space +</pre> <p>If a device has very limited system partition space, it’s possible to compile a subset of classes in the boot classpath using the compiled classes list. Boot @@ -427,12 +466,16 @@ could affect runtime performance. <p>BoardConfig.mk:</p> -<pre><code>WITH_DEXPREOPT := true -WITH_DEXPREOPT_BOOT_IMG_ONLY := true</code></pre> +<pre class="devsite-click-to-copy"> +WITH_DEXPREOPT := true +WITH_DEXPREOPT_BOOT_IMG_ONLY := true +</pre> <p>device.mk:</p> -<pre><code>PRODUCT_COPY_FILES += <filename>:system/etc/compiled-classes</code></pre> +<pre class="devsite-click-to-copy"> +PRODUCT_COPY_FILES += <filename>:system/etc/compiled-classes +</pre> <p>If a device has both limited space in the system and data partitions, compiler filter flags can be used to disable compilation of certain apps. This will save @@ -446,13 +489,17 @@ speed. <p>BoardConfig.mk:</p> -<pre><code>WITH_DEXPREOPT := true -DONT_DEXPREOPT_PREBUILTS := true</code></pre> +<pre class="devsite-click-to-copy"> +WITH_DEXPREOPT := true +DONT_DEXPREOPT_PREBUILTS := true +</pre> <p>device.mk:</p> -<pre><code>PRODUCT_DEX_PREOPT_DEFAULT_FLAGS := --compiler-filter=interpret-only -$(call add-product-dex-preopt-module-config,services,--compiler-filter=space)</code></pre> +<pre class="devsite-click-to-copy"> +PRODUCT_DEX_PREOPT_DEFAULT_FLAGS := --compiler-filter=interpret-only +$(call add-product-dex-preopt-module-config,services,--compiler-filter=space) +</pre> <p>For a major version upgrade OTA, it can be useful to blacklist certain apps from being pre-optimized since they will likely be out of date. This can be @@ -461,11 +508,15 @@ done by specifying <code>LOCAL_DEX_PREOPT</code> (for all products) or with <p>BoardConfig.mk:</p> -<pre><code>WITH_DEXPREOPT := true</code></pre> +<pre class="devsite-click-to-copy"> +WITH_DEXPREOPT := true +</pre> <p>Android.mk (of blacklisted apps):</p> -<pre><code>LOCAL_DEX_PREOPT := false</code></pre> +<pre class="devsite-click-to-copy"> +LOCAL_DEX_PREOPT := false +</pre> </body> </html> |