de40d478930d0889a2aea5cbf58aa63da24e5dfa |
|
16-Oct-2015 |
Mathieu Chartier <mathieuc@google.com> |
Use arenas for the verifier Improvements are from using arenas for verifier. The things that were moved into arenas are register lines, reg types, and reg type descriptors. Also some minor cleanup. Fixed double space formatting error in string piece. ======================================== Before: ======================================= compile GmsCore 50x on host -j1: real 3m5.510s user 2m48.139s sys 0m11.753s 50 random APKs: real 1m18.157s user 1m8.167s sys 0m8.071s RAM (GmsCore): (threads: 1) arena alloc=0B java alloc=27MB native alloc=64MB free=792KB (threads: 4) arena alloc=0B java alloc=27MB native alloc=64MB free=397KB Perf: ============================= After: ============================= compile GmsCore 50x on host -j1: real 2m31.455s user 2m14.784s sys 0m10.888s 50 random APKs: Speed up from arena allocating: real 1m12.094s user 1m2.325s sys 0m7.872s Speed up from areans + CreateFindClassDefIndex + unordered_map for DexFileVerifier. real 1m8.654s user 0m58.955s sys 0m7.777s RAM (GmsCore): (threads: 1) arena alloc=1049KB java alloc=27MB native alloc=65MB free=538KB (threads: 4) arena alloc=4MB java alloc=27MB native alloc=69MB free=650KB Perf on host key results: _int_malloc: 3.60% -> 1.39% malloc: 1.48% -> 0.65% _int_free: 1.59% -> 0.61% RegTypeCache::FromClass: 1.47% -> 0.86% malloc_consolidate: 0.89% -> 0.63% Real speed up is ~22% on GmsCore, ~14% on the set of 60 APKs. Bug: 10921004 Change-Id: If13d4ab4284a176f93a26a412549b6b1149dfb16
|
e2aa3265594486b4b977453752645cdce3026e82 |
|
21-Oct-2015 |
Mathieu Chartier <mathieuc@google.com> |
Use binary search for FindDeclaredInstance/StaticField Before: real 1m18.157s user 1m8.167s sys 0m8.071s After: real 1m12.943s user 1m3.223s sys 0m7.881s Perf results: FindDeclaredStaticField: 1.78% -> 0.11% __GI___strncmp_ssse3: 2.45% -> 0.87% Bug: 10921004 Change-Id: Ice7d3ce2635d6cd2de5574055375d9e20712d241
|
277ccbd200ea43590dfc06a93ae184a765327ad0 |
|
04-Nov-2014 |
Andreas Gampe <agampe@google.com> |
ART: More warnings Enable -Wno-conversion-null, -Wredundant-decls and -Wshadow in general, and -Wunused-but-set-parameter for GCC builds. Change-Id: I81bbdd762213444673c65d85edae594a523836e5
|
6b604a1b0289e5e7211c2e5f8c4f395f51de7c3d |
|
26-Sep-2014 |
Ian Rogers <irogers@google.com> |
Fix Class::IsInSamePackage to not read beyond the end of a StringPiece. Fix length of string piece to be size_type rather than int because expecting negatively sized strings is a bad idea and we should use unsigned types to defensively guard against mistakes. Remove max_size and capacity since the return type is inconsistent between Google and the STL, and we don't need the functions. Add a bound check in libartd to operator[] accesses. Change-Id: I1b87a03d8fbd95e7dbb106745e304d1083898075
|
7b078e8c04f3e1451dbdd18543c8b9692b5b067e |
|
10-Sep-2014 |
Ian Rogers <irogers@google.com> |
Compile time performance improvements focusing on interpret-only. Reduce virtual method dispatch in the method verifier and make more code inline-able. Add a StringPiece with const char* equality operator to avoid redundant StringPieces and strlens. Remove back link from register line to verifier and pass as argument to reduce size of RegisterLine. Remove instruction length from instruction flags and compute from the instruction, again to reduce size. Add suspend checks to resolve and verify to allow for more easy monitor inflation and reduce contention on Locks::thread_list_suspend_thread_lock_. Change ThrowEarlierClassFailure to throw pre-allocated exception. Avoid calls to Thread::Current() by passing self. Template specialize IsValidClassName. Make ANR reporting with SIGQUIT run using checkpoints rather than suspending all threads. This makes the stack/lock analysis less lock error prone. Extra Barrier assertions and condition variable time out is now returned as a boolean both from Barrier and ConditionVariable::Wait. 2 threaded host x86-64 interpret-only numbers from 341 samples: Before change: Avg 176.137ms 99% CI 3.468ms to 1060.770ms After change: Avg 139.163% 99% CI 3.027ms to 838.257ms Reduction in average compile time after change is 20.9%. Slow-down without change is 26.5%. Bug: 17471626 - Fix bug where RegTypeCache::JavaLangObject/String/Class/Throwable could return unresolved type when class loading is disabled. Bug: 17398101 Change-Id: Id59ce3cc520701c6ecf612f7152498107bc40684
|
7dfb28c066159e6cde8181720f0c451a700ef966 |
|
22-Aug-2013 |
Ian Rogers <irogers@google.com> |
Don't scan image space when starting runtime. Bug 10432288. Find Classes and Strings from dex caches lazily rather than when the image is loaded. Make class status changes do notifies when there can be waiters. For Class lookup there's a pathology if we always search dex caches and so after 1000 failures move all classes into the class table. Be consistent in using "const char*" for class linker descriptors as this most easily agrees with the type in the dex file. Improve the intern run-test so that it has a case of a literal contained in the image. Modify image_test to allow any valid lock word rather than expecting 0, ideally we wouldn't see inflated monitors but we do due to NotifyAll (see bug 6961405). Change-Id: Ia9bfa748eeccb9b4498784b97c6823141b1f6db8
|
fc0e3219edc9a5bf81b166e82fd5db2796eb6a0d |
|
17-Jul-2013 |
Brian Carlstrom <bdc@google.com> |
Fix multiple inclusion guards to match new pathnames Change-Id: Id7735be1d75bc315733b1773fba45c1deb8ace43
|
7940e44f4517de5e2634a7e07d58d0fb26160513 |
|
12-Jul-2013 |
Brian Carlstrom <bdc@google.com> |
Create separate Android.mk for main build targets The runtime, compiler, dex2oat, and oatdump now are in seperate trees to prevent dependency creep. They can now be individually built without rebuilding the rest of the art projects. dalvikvm and jdwpspy were already this way. Builds in the art directory should behave as before, building everything including tests. Change-Id: Ic6b1151e5ed0f823c3dd301afd2b13eb2d8feb81
|