this method should be implemented by the concrete benchmark.
this method should be implemented by the concrete benchmark. This method is called by the benchmarking code for a number of times. The GC is called before each call to 'run'.
tearDown
,setUp
Test two objects for inequality.
Test two objects for inequality.
true if !(this == that), false otherwise.
Equivalent to x.hashCode except for boxed numeric types.
Equivalent to x.hashCode except for boxed numeric types.
For numerics, it returns a hash value which is consistent
with value equality: if two value type instances compare
as true, then ## will produce the same hash value for each
of them.
a hash value consistent with ==
Test two objects for equality.
Test two objects for equality.
true if the receiver object is equivalent to the argument; false otherwise.
Cast the receiver object to be of type T0.
Cast the receiver object to be of type T0.
Note that the success of a cast at runtime is modulo Scala's erasure semantics.
Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at
runtime, while the expression List(1).asInstanceOf[List[String]] will not.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the requested type.
the receiver object.
Create a copy of the receiver object.
Tests whether the argument (arg0) is a reference to the receiver object (this).
Tests whether the argument (arg0) is a reference to the receiver object (this).
The eq method implements an equivalence relation on
non-null instances of AnyRef, and has three additional properties:
x and y of type AnyRef, multiple invocations of
x.eq(y) consistently returns true or consistently returns false.x of type AnyRef, x.eq(null) and null.eq(x) returns false.null.eq(null) returns true. When overriding the equals or hashCode methods, it is important to ensure that their behavior is
consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they
should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).
true if the argument is a reference to the receiver object; false otherwise.
The equality method for reference types.
Called by the garbage collector on the receiver object when there are no more references to the object.
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the finalize method is invoked, as
well as the interaction between finalize and non-local returns
and exceptions, are all platform dependent.
A representation that corresponds to the dynamic class of the receiver object.
A representation that corresponds to the dynamic class of the receiver object.
The nature of the representation is platform dependent.
a representation that corresponds to the dynamic class of the receiver object.
The hashCode method for reference types.
Test whether the dynamic type of the receiver object is T0.
Test whether the dynamic type of the receiver object is T0.
Note that the result of the test is modulo Scala's erasure semantics.
Therefore the expression 1.isInstanceOf[String] will return false, while the
expression List(1).isInstanceOf[List[String]] will return true.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the specified type.
true if the receiver object is an instance of erasure of type T0; false otherwise.
The entry point.
The entry point. It takes two arguments (n), and an optional argument multiplier (mult). (n) is the number of consecutive runs, if (mult) is present, the n runs are repeated (mult) times.
Equivalent to !(this eq that).
Equivalent to !(this eq that).
true if the argument is not a reference to the receiver object; false otherwise.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
a string that is written at the beginning of the output line that contains the timings.
a string that is written at the beginning of the output line that contains the timings. By default, this is the class name.
Run the benchmark the specified number of times and return a list with the execution times in milliseconds in reverse order of the execution
Run the benchmark the specified number of times and return a list with the execution times in milliseconds in reverse order of the execution
...
...
Prepare any data needed by the benchmark, but whose execution time should not be measured.
Prepare any data needed by the benchmark, but whose execution time should not be measured. This method is run before each call to the benchmark payload, 'run'.
Perform cleanup operations after each 'run'.
Perform cleanup operations after each 'run'. For micro benchmarks, think about using the result of 'run' in a way that prevents the JVM to dead-code eliminate the whole 'run' method. For instance, print or write the results to a file. The execution time of this method is not measured.
Creates a String representation of this object.
Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.
a String representation of the object.
Benchmarkcan be used to quickly turn an existing class into a benchmark. Here is a short example:object sort1 extends Sorter with Benchmark { def run = sort(List.range(1, 1000)) }The
runmethod has to be defined by the user, who will perform the timed operation there. Run the benchmark as follows:This will run the benchmark 5 times and log the execution times in a file called
times.log