* as an array - so that any overload variant * can be traced in "one place". This example * traces any "readXX" method on any class in * java.io package. Probed class, method and arg * array is printed in the action. */@BTracepublicclassArgArray{@OnMethod( clazz="/java\\.io...
* The following code can be used to dump the queue into a newly * allocated array of {@code String}: * * {@code String[] y = x.toArray(new String[0]);} * * Note that {@code toArray(new Object[0])} is identical in function to * {@code toArray()}. * * @param a t...
* The following code can be used to dump the queue into a newly * allocated array of {@code String}: * * {@code String[] y = x.toArray(new String[0]);} * * Note that {@code toArray(new Object[0])} is identical in function to * {@code toArray()}. * * @param a the...
= truebool DumpSharedSpaces = falsebool DynamicDumpSharedSpaces = falsebool EagerXrunInit = falseintx EliminateAllocationArraySizeLimit = 64bool EliminateAllocations = truebool EliminateAutoBox = truebool EliminateLocks = truebool EliminateNestedLocks = truebool EnableContended = truebool EnableDynamic...
Range check elimination: The Java programming language specification requires array bounds checking to be performed with each array access. An index bounds check can be eliminated when the compiler can prove that an index used for an array access is within bounds. ...
Redis uses a "dict" structure to store all key-value data, which is a global hash table, so queries for keys can be obtained in O(1) time. The so-called hash table, we can compare it withHashMapin Java, which is actually an array, and each element of the array is called a hash...
Memory access from better to worse: local vars; supersuperclass instance variable; superclass instance var; class instance var; class static var; array elements. It can help to copy slower-access vars to fast local vars if you are going to operate on them repeatedly, as in a loop. Use ...
-XX:AllocatePrefetchLines=lines Sets the number of cache lines to load after the last object allocation by using the prefetch instructions generated in compiled code. The default value is 1 if the last allocated object was an instance, and 3 if it was an array. The following example shows ...
public long[] getLongArray(int key) 根据特定的key值检索long数组。 Parameters Name Description key 待查找key值。 Returns Type Description long[] 特定的key值检索得到的long数组。 getRational Method public Rational getRational(int key) 根据特定的key值检索Rational值。 Parameters Name Description key ...
2. Array bounds check elimination Array bounds checking is mandatory for safety, but not during every run. 3. Method inlining The behavior of method inlining is to copy the code of the target method into the method that initiates the call, avoiding the actual method call. To solve the probl...