)]}' { "log": [ { "commit": "3aaa37bba53d6df0265793de48b4b0b57327e57a", "tree": "ce795803f0f10003eb3d96d9348da620937675b3", "parents": [ "792c98bb773c8c2390f9cbf774f85be9d9a75332" ], "author": { "name": "jessicahandojo", "email": "jessicahandojo@google.com", "time": "Fri Jul 29 14:46:37 2016 -0700" }, "committer": { "name": "jessicahandojo", "email": "jessicahandojo@google.com", "time": "Tue Aug 23 15:12:26 2016 -0700" }, "message": "creating workflow for mirror::String compression\n\nAll-ASCII String characters are stored in 8-bit blocks\ninstead of 16-bit. The compression has not taken place, but all\nworkflow are in the code already (changing kUseStringCompression in\nstring.h file to TRUE will enable the feature)\n\nNotes: Feature works on interpreter only without optimizing\n\nTest art: m ART_TEST_INTERPRETER\u003dtrue ART_TEST_OPTIMIZING\u003dfalse\n test-art-host\n\nAlso tested with String tests from libcore/:\n1. libcore.java.lang.StringTest\n2. libcore.java.lang.StringBufferTest\n3. libcore.java.lang.StringBuilderTest\n4. libcore.java.lang.OldStringTest\n5. libcore.java.lang.OldStringBufferTest\n\nMemory improvement is 33% (from 6.03% to 4.03%, total String memory\nfrom all apps per total memory of all apps) measured on Angler\nwith Hprof tools\n\nBug: 31040547\nChange-Id: I9cc92c265ebf1305fc06b5fc33efd83797660cce\n" }, { "commit": "cac5a7e871f1f346b317894359ad06fa7bd67fba", "tree": "2df7d4892216a7c976dfe848c9893cb5eb8fa6a5", "parents": [ "6f51d7756a9c66007fe7666b19399e1f60ff6092" ], "author": { "name": "Vladimir Marko", "email": "vmarko@google.com", "time": "Mon Feb 22 10:39:50 2016 +0000" }, "committer": { "name": "Vladimir Marko", "email": "vmarko@google.com", "time": "Tue Mar 29 19:27:40 2016 +0100" }, "message": "Optimizing: Improve const-string code generation.\n\nFor strings in the boot image, use either direct pointers\nor pc-relative addresses. For other strings, use PC-relative\naccess to the dex cache arrays for AOT and direct address of\nthe string\u0027s dex cache slot for JIT.\n\nFor aosp_flounder-userdebug:\n - 32-bit boot.oat: -692KiB (-0.9%)\n - 64-bit boot.oat: -948KiB (-1.1%)\n - 32-bit dalvik cache total: -900KiB (-0.9%)\n - 64-bit dalvik cache total: -3672KiB (-1.5%)\n (contains more files than the 32-bit dalvik cache)\nFor aosp_flounder-userdebug forced to compile PIC:\n - 32-bit boot.oat: -380KiB (-0.5%)\n - 64-bit boot.oat: -928KiB (-1.0%)\n - 32-bit dalvik cache total: -468KiB (-0.4%)\n - 64-bit dalvik cache total: -1928KiB (-0.8%)\n (contains more files than the 32-bit dalvik cache)\n\nBug: 26884697\nChange-Id: Iec7266ce67e6fedc107be78fab2e742a8dab2696\n" }, { "commit": "208a5cb383dd9dcd3461f89b74af5df67dc8d794", "tree": "9ed531a445d24a7685e577b1c5822e50dc1c1b1d", "parents": [ "5337bbfbd1cd502bb2842698a6b2a543ab6a6c32" ], "author": { "name": "Mathieu Chartier", "email": "mathieuc@google.com", "time": "Wed Dec 02 15:44:07 2015 -0800" }, "committer": { "name": "Mathieu Chartier", "email": "mathieuc@google.com", "time": "Thu Dec 03 16:29:03 2015 -0800" }, "message": "Store class tables in the image\n\nReduces how long it takes to load an application image.\n\nN5 boot.art size\nBefore: 8007680\nAfter: 8122368\n\nAlso reduces boot time by how long AddImageClassesToClassTable\nused to take (~20ms).\n\nChanged class hashes to be uint32_t to fix cross compilation. We need\nserialized hash tables to be valid with different pointer sizes.\n\nBug: 22858531\n\nChange-Id: I463fc83f499ff75f509e80c253a55b9116ee5b89\n" }, { "commit": "1646d7a22e43a1fb25452ead47a4073e63d7f391", "tree": "afa5614a1d262e83b3da57930a5266715e8acd97", "parents": [ "0f0d5f370dca8bbdb97c61ea30e1b0476ee7749a" ], "author": { "name": "Bruce Hoult", "email": "b.hoult@samsung.com", "time": "Wed Oct 28 15:06:12 2015 +0300" }, "committer": { "name": "Artem Udovichenko", "email": "artem.u@samsung.com", "time": "Tue Nov 24 13:36:30 2015 +0300" }, "message": "Optimize some commonly used utf8 functions by:\n\n- using counted loops instead of searching for terminating null. In\n the important cases the caller already knows the length: change\n the API to pass it in. Keep the old API version as well to avoid\n extensive changes to non-critical debug and test code.\n\n- ensure the common cases are at the start of if/then/else chains.\n Usually 99+% of characters are ASCII even in mixed strings.\n\n- for the \"convert\" functions, when both utf8 and utf16 lengths are\n passed, and are equal, it means the entire string is ASCII, and a\n specialized loop can be used. The compiler might then unroll or\n even vectorize this.\n\nThe functions improved are (tested on Nexus 5 with a 44 character\nASCII string):\n\nCountModifiedUtf8Chars : 20% faster\nConvertUtf16ToModifiedUtf8: 80% faster\nConvertModifiedUtf8ToUtf16: 200% faster\n\nAlso for completeness CountUtf8Bytes has been cleaned up a little, but\nthe speed is unchanged. Unlike CountModifiedUtf8Chars, it was already\npassed the length, rather than searching for null.\n\nChange-Id: I1c9b7dea3eda869fc9f5f6b4dd6be8cdd5bc3ac0\n" }, { "commit": "848f70a3d73833fc1bf3032a9ff6812e429661d9", "tree": "b0349b3a40aab5a915af491b100659a5ca9fbbf6", "parents": [ "d14438f0c5071962be7fab572b54687d32d9d087" ], "author": { "name": "Jeff Hao", "email": "jeffhao@google.com", "time": "Wed Jan 15 13:49:50 2014 -0800" }, "committer": { "name": "Jeff Hao", "email": "jeffhao@google.com", "time": "Mon Apr 27 18:54:52 2015 -0700" }, "message": "Replace String CharArray with internal uint16_t array.\n\nSummary of high level changes:\n - Adds compiler inliner support to identify string init methods\n - Adds compiler support (quick \u0026 optimizing) with new invoke code path\n that calls method off the thread pointer\n - Adds thread entrypoints for all string init methods\n - Adds map to verifier to log when receiver of string init has been\n copied to other registers. used by compiler and interpreter\n\nChange-Id: I797b992a8feb566f9ad73060011ab6f51eb7ce01\n" }, { "commit": "e16dad1d6388b0305f13e2171308a77f42e7c682", "tree": "a56d002ba622ecce7f1310e8fac56adca6547d5a", "parents": [ "ebfd062af849a915bd75eebd81c6fdea15b1d8d5" ], "author": { "name": "Narayan Kamath", "email": "narayan@google.com", "time": "Fri Feb 13 11:49:22 2015 +0000" }, "committer": { "name": "Narayan Kamath", "email": "narayan@google.com", "time": "Wed Mar 25 08:46:51 2015 +0000" }, "message": "Emit 4 byte UTF-sequences in place of encoded surrogate pairs.\n\nSymmetric with a5afcfc73141e5e378d79a326d0 which converts 4 byte UTF-8\nsequences to surrogate pairs.\n\nbug: 18848397\n\nChange-Id: I42adc275b7e0df0cbbd9d8a799e8b0447d8f5cae\n" }, { "commit": "a5afcfc73141e5e378d79a326d02c5c2039fb025", "tree": "424add9558fb816c4f1d2f4edd128f4f2a086d9a", "parents": [ "5a3399deaf448c8434d9ba0916ff799b1b791d95" ], "author": { "name": "Narayan Kamath", "email": "narayan@google.com", "time": "Thu Jan 29 20:06:46 2015 +0000" }, "committer": { "name": "Narayan Kamath", "email": "narayan@google.com", "time": "Thu Feb 12 11:54:37 2015 +0000" }, "message": "Be more lenient with 4 byte UTF-8 sequences.\n\nAccept 4 byte sequences and convert them into surrogate\npairs instead of expecting 2 separate 3 byte sequences\neach encoding one half of a surrogate pair.\n\nNote that in addition to supporting 4 byte sequences in\nstrings from JNI, we also tolerate them in dex files. This\nis mainly for consistency, and there\u0027s no need to claim any\nsort of official support.\n\nbug: 18848397\nbug: https://code.google.com/p/android/issues/detail?id\u003d81341\nChange-Id: Ibc98d29e59d98803e640f2489ea4c56912a59b29\n" }, { "commit": "a48aef4234768ed37828df613919391c21f561a7", "tree": "eb77858bc679512245336ec3ca96c8be59f6f34b", "parents": [ "ccce1c02b162b667139eaef563460b1e1f330891" ], "author": { "name": "Vladimir Marko", "email": "vmarko@google.com", "time": "Wed Dec 03 17:53:53 2014 +0000" }, "committer": { "name": "Vladimir Marko", "email": "vmarko@google.com", "time": "Wed Feb 11 10:02:55 2015 +0000" }, "message": "Fix ImageWriter::ComputeEagerResolvedStringsCallback().\n\nChange-Id: I1a2abd6d78dd7067d9bdbadbd81dd2fd7711fbc5\n" }, { "commit": "e7c9a8c2b8481aafbc6af4ce6229bd361ba24742", "tree": "f6d8fe8fd7aeae117a6547dc4f012cd4085cb4e8", "parents": [ "00b2da5c02339c36ffa4006f731f55203b09265d" ], "author": { "name": "Mathieu Chartier", "email": "mathieuc@google.com", "time": "Thu Nov 06 16:35:45 2014 -0800" }, "committer": { "name": "Mathieu Chartier", "email": "mathieuc@google.com", "time": "Fri Nov 07 11:45:06 2014 -0800" }, "message": "Add hash map, reduce excessive hashing\n\nChanged the class def index to use a HashMap instead of unordered_map\nso that we can use FindWithHash to reduce how often we need to compute\nhashes.\n\nFixed a bug in ClassLinker::UpdateClass where we didn\u0027t properly\nhandle classes with the same descriptor but different class loaders.\nIntroduced by previous CL.\n\nBefore (fb launch):\n1.74% art::ComputeModifiedUtf8Hash(char const*)\n\nAfter:\n0.95% art::ComputeModifiedUtf8Hash(char const*)\n\nBug: 18054905\nBug: 16828525\n\nChange-Id: Iba2ee37c9837289e0ea187800ba4af322225a994\n\n(cherry picked from commit 564ff985184737977aa26c485d0c1a413e530705)\n" }, { "commit": "8f41dc389bd50b6e31caa3fe9d41cbaf76e4d8d6", "tree": "e46610c43bb57e78218d7bfd95e486a2165a9c4a", "parents": [ "a8825e4b38ae01fa77d255ca423ab2f2b77c6097" ], "author": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Thu Oct 30 15:16:16 2014 -0700" }, "committer": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Thu Oct 30 15:16:16 2014 -0700" }, "message": "Avoid signed arithmetic overflow in UTF hash functions.\n\nChange-Id: I3485ef8445a6034661c1e75dc11ab9ad48884458\n" }, { "commit": "68b56858367e29461ae290fd797443a1ef6d8005", "tree": "c086a68bcbbb50d7c3b829bcc7d4231ff815db4a", "parents": [ "7c7686e62d262f1823876cebb3700e20f967dd56" ], "author": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Fri Aug 29 20:19:11 2014 -0700" }, "committer": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Tue Sep 02 08:01:04 2014 -0700" }, "message": "Reduce and speed-up class def searches.\n\nUse the class linker for descriptor lookups from the compile driver so that\ndex caches are populated.\nReduce the scope of functions for scanning class paths to just the class\nlinker where they are performed.\nIf we see more than a threshold number of find class def misses on a dex file\nlazily compute an index, so that future lookups are constant time (part of the\ncollection code is taken from\nhttps://android-review.googlesource.com/#/c/103865/3). Note that we take a lazy\napproach so that we don\u0027t serialize on loading dex files, this avoids the\nreason the index was removed in 8b2c0b9abc3f520495f4387ea040132ba85cae69.\nRemove an implicit and unnecessary std::string creation for PrintableString.\n\nSingle threaded interpret-only dex2oat performance is improved by roughly 10%.\n\nBug: 16853450\n\nChange-Id: Icf72df76b0a4328f2a24075e81f4ff267b9401f4\n" }, { "commit": "ef7d42fca18c16fbaf103822ad16f23246e2905d", "tree": "c67eea52a349c2ea7f2c3bdda8e73933c05531a8", "parents": [ "822115a225185d2896607eb08d70ce5c7099adef" ], "author": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Mon Jan 06 12:55:46 2014 -0800" }, "committer": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Thu Feb 06 23:20:27 2014 -0800" }, "message": "Object model changes to support 64bit.\n\nModify mirror objects so that references between them use an ObjectReference\nvalue type rather than an Object* so that functionality to compress larger\nreferences can be captured in the ObjectRefererence implementation.\nObjectReferences are 32bit and all other aspects of object layout remain as\nthey are currently.\n\nExpand fields in objects holding pointers so they can hold 64bit pointers. Its\nexpected the size of these will come down by improving where we hold compiler\nmeta-data.\nStub out x86_64 architecture specific runtime implementation.\nModify OutputStream so that reads and writes are of unsigned quantities.\nMake the use of portable or quick code more explicit.\nTemplatize AtomicInteger to support more than just int32_t as a type.\nAdd missing, and fix issues relating to, missing annotalysis information on the\nmutator lock.\nRefactor and share implementations for array copy between System and uses\nelsewhere in the runtime.\nFix numerous 64bit build issues.\n\nChange-Id: I1a5694c251a42c9eff71084dfdd4b51fff716822\n" }, { "commit": "a67249065e4c9b3cf4a7c081d95a78df28291ee9", "tree": "8f5b84b886362e9f3bb2e9be6b24c2b61a02f907", "parents": [ "450dcb56ecbf6f729401e753f0a27e4170177ddd" ], "author": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Mon Sep 23 09:23:37 2013 -0700" }, "committer": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Mon Sep 23 09:25:56 2013 -0700" }, "message": "Move hot utf routines into -inl.h.\n\nChange-Id: I7050d8282a7e5870b2bf671d6867c57625e00ccc\n" }, { "commit": "7940e44f4517de5e2634a7e07d58d0fb26160513", "tree": "ac90242d96229a6942f6e24ab137bc1f8f2e0025", "parents": [ "5cd9e3b122f276f610980cbaf0d2ad6ed4cd9088" ], "author": { "name": "Brian Carlstrom", "email": "bdc@google.com", "time": "Fri Jul 12 13:46:57 2013 -0700" }, "committer": { "name": "Brian Carlstrom", "email": "bdc@google.com", "time": "Fri Jul 12 17:49:01 2013 -0700" }, "message": "Create separate Android.mk for main build targets\n\nThe runtime, compiler, dex2oat, and oatdump now are in seperate trees\nto prevent dependency creep. They can now be individually built\nwithout rebuilding the rest of the art projects. dalvikvm and jdwpspy\nwere already this way. Builds in the art directory should behave as\nbefore, building everything including tests.\n\nChange-Id: Ic6b1151e5ed0f823c3dd301afd2b13eb2d8feb81\n" }, { "commit": "637c65b1e431fd90195b71c141b3590bd81cc91a", "tree": "30097d990e442290bbb4ce94620390075b2dd624", "parents": [ "207bb6548f96636b40ee62124b37d2d82c3ddc6b" ], "author": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Fri May 31 11:46:00 2013 -0700" }, "committer": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Fri May 31 21:31:37 2013 -0700" }, "message": "Verifier improvements.\n\nMake type hierarchy for unresolved and unitialized types explicit.\nTidy and comment code.\nAdd DexFile::FindStringId that takes UTF-16 to avoid unnecessary UTF-8\nconversions during image writing.\nExplicitly disable RTTI that causes problems in debug builds.\n\nChange-Id: I701f1c3be8be5854fcabf5ec39e9f9c5d388aab0\n" }, { "commit": "4f6ad8ab428038129b2d0d6c40b7fd625cca15e1", "tree": "d1025ed9203d0cdf7aa959d9cecd8dc1f0c0bfeb", "parents": [ "aabe8adacc7bf3a8ab6f6f3dd37fc839b6fd762f" ], "author": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Mon Mar 18 15:27:28 2013 -0700" }, "committer": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Mon Mar 18 15:29:59 2013 -0700" }, "message": "Various performance improvements.\n\nPerformance had regressed due to verify object and method invocation changes.\nAvoid trampolines for static calls in same class.\nVarious inlining changes.\nMake verify object something that\u0027s only compiled-in in debug builds.\n\nChange-Id: Ia261a52232c3b10667c668f8adfadc0da3048bc5\n" }, { "commit": "2dd0e2cea360bc9206eb88ecc40d259e796c239d", "tree": "9d619dc9508cbe73e4793bf6f08cbc761abfb48a", "parents": [ "ac21b797b3a425975d656d6b84a7b24401d35f42" ], "author": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Thu Jan 24 12:42:14 2013 -0800" }, "committer": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Wed Jan 30 16:48:31 2013 -0800" }, "message": "Directory restructuring of object.h\n\nBreak object.h into constituent files.\nReduce number of #includes in other GC header files.\nIntroduce -inl.h files to avoid mirror files #include-ing each other.\nCheck invariants of verifier RegTypes for all constructors.\n\nChange-Id: Iecf1171c02910ac152d52947330ef456df4043bc\n" }, { "commit": "07ed66b5ae659c452cbe1ab20c3dbf1d6f546461", "tree": "2350745da33df6fcb9fb0c9059e55ea5d5ea8f67", "parents": [ "76b6167407c2b6f5d40ad895b2793a6b037f54b2" ], "author": { "name": "Elliott Hughes", "email": "enh@google.com", "time": "Wed Dec 12 18:34:25 2012 -0800" }, "committer": { "name": "Elliott Hughes", "email": "enh@google.com", "time": "Wed Dec 12 18:35:05 2012 -0800" }, "message": "Move logging.h into base/logging.h.\n\nChange-Id: Id68f85f7c3a71b156cb40dec63f94d4fb827f279\n" }, { "commit": "2faa5f1271587cda765f26bcf2951065300a01ff", "tree": "c59557857c36741cfcd1b6bf5ae039886a8ad6e7", "parents": [ "0850c69c88d49efd4075288511b70d6c032bd0c8" ], "author": { "name": "Elliott Hughes", "email": "enh@google.com", "time": "Mon Jan 30 14:42:07 2012 -0800" }, "committer": { "name": "Elliott Hughes", "email": "enh@google.com", "time": "Mon Jan 30 16:46:29 2012 -0800" }, "message": "Fix copyright headers.\n\nChange-Id: I5b7bc76a370238d810d78522bd5531600746700f\n" }, { "commit": "10037c866b04550fc5461058c398c2e3e509381a", "tree": "91ef9ebf54962b25c2faf6e66e2b9ca4d383cbbe", "parents": [ "20e1ebb6d7b9959971baf0903beb0c7f7169e716" ], "author": { "name": "jeffhao", "email": "jeffhao@google.com", "time": "Mon Jan 23 15:06:23 2012 -0800" }, "committer": { "name": "jeffhao", "email": "jeffhao@google.com", "time": "Wed Jan 25 16:30:59 2012 -0800" }, "message": "Added pass to verify structure of dex file.\n\nWhen a dex file is first opened, this pass runs through to make sure\nsizes and offsets of the various sections of the dex file match the\nheader and don\u0027t overlap.\n\nChange-Id: I4900c9665d6572ccfca2fe5f79d5d48ce7252036\n" }, { "commit": "0571d357843c53e042f370f5f2c2e9aa3fe803a9", "tree": "197e5b1c0b1bf0ee8cc0e1960470d0a8d203b4af", "parents": [ "33dc7717cd16592bcc825350bea6305be9eb2ea1" ], "author": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Thu Nov 03 19:51:38 2011 -0700" }, "committer": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Sun Nov 13 11:57:18 2011 -0800" }, "message": "Refactor the use of Method by the compiler.\n\nRemove the dependence on the Method object in dex2oat, allowing lazier\nresolution.\nIntroduce new find and iterators in DexFile to simplify common\noperations and avoid misuse of class data items.\n\nChange-Id: I39fb8252190f543d89d8b233076355cec310fe08\n" }, { "commit": "0cfe1fb7060576d047f7f894fc0d8b87de84fcab", "tree": "4255eae2034dcb0febe28411c50cba76189f39ae", "parents": [ "a09576416788b916095739e43a16917e7948f3a4" ], "author": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Fri Aug 26 03:29:44 2011 -0700" }, "committer": { "name": "Ian Rogers", "email": "irogers@google.com", "time": "Fri Sep 02 14:48:01 2011 -0700" }, "message": "Use accessor methods for Object fields.\n\nEnsure that Object fields are modified via accessors so that it\u0027s easy\nto insert barriers (make all fields within Objects private). Add validity\nchecks to Field and Method accessors to ensure they are accessed when a\nClass is in a suitable state. Add validity checks to all Object\naccessors to check heap isn\u0027t corrupted. Remove hacked in strings from Field\nand Method; make type fields used the dex cache that is lazily initialized.\nClean up various other TODOs and lint issues.\n\nChange-Id: Iac0afc515c01f5419874d9cdcdb9a7b45443e3fb\n" }, { "commit": "b465ab0e103d7760df903c1fddf4fa6b89d5d1f5", "tree": "d016f72c58c0dacb7e5f47c232f19378bdacf53b", "parents": [ "69f5bc6759f256a146eefd8a7141d39fcc3b0421" ], "author": { "name": "Elliott Hughes", "email": "enh@google.com", "time": "Wed Aug 24 11:21:21 2011 -0700" }, "committer": { "name": "Elliott Hughes", "email": "enh@google.com", "time": "Wed Aug 24 14:06:15 2011 -0700" }, "message": "Implement the direct ByteBuffer JNI functions, GetObjectRefType, and the string region functions.\n\nAlso run tests in a consistent (alphabetical) order.\n\nChange-Id: I1bb4f3389e749ec031254d23da349be0397c260d\n" }, { "commit": "814e40397fe6c8a2c645bae99f356dbddd6dbe18", "tree": "39e7de56ada11f00d4541e4bdb2e76dad6cc5c0a", "parents": [ "d2fbb2bd2448f0872878258727aa1eb2558a0c3b" ], "author": { "name": "Elliott Hughes", "email": "enh@google.com", "time": "Tue Aug 23 12:07:56 2011 -0700" }, "committer": { "name": "Elliott Hughes", "email": "enh@google.com", "time": "Tue Aug 23 14:02:10 2011 -0700" }, "message": "Add some missing JNI string functions, GetObjectArrayElement, and all the primitive array region functions.\n\nThis also pulls the UTF-8/UTF-16 functions out of class String.\n\nChange-Id: I75936b84fd619c9cf91f6e6a6037488220b05781\n" } ] }