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| author | Johan Tibell <johan.tibell@gmail.com> | 2014-03-23 12:06:56 +0100 |
|---|---|---|
| committer | Johan Tibell <johan.tibell@gmail.com> | 2014-03-29 11:24:07 +0100 |
| commit | 90329b6cc183b3cd05956ae6bdeb6ac6951549c2 (patch) | |
| tree | ba7d31656fe75fad2555c8a66b7ebd13dd9ebeb1 /testsuite/tests/codeGen/should_run/all.T | |
| parent | 4c8edfd2c722504baaa6896d194fd3a8c3f9b652 (diff) | |
| download | haskell-90329b6cc183b3cd05956ae6bdeb6ac6951549c2.tar.gz | |
Add SmallArray# and SmallMutableArray# types
These array types are smaller than Array# and MutableArray# and are
faster when the array size is small, as they don't have the overhead
of a card table. Having no card table reduces the closure size with 2
words in the typical small array case and leads to less work when
updating or GC:ing the array.
Reduces both the runtime and memory allocation by 8.8% on my insert
benchmark for the HashMap type in the unordered-containers package,
which makes use of lots of small arrays. With tuned GC settings
(i.e. `+RTS -A6M`) the runtime reduction is 15%.
Fixes #8923.
Diffstat (limited to 'testsuite/tests/codeGen/should_run/all.T')
| -rw-r--r-- | testsuite/tests/codeGen/should_run/all.T | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/testsuite/tests/codeGen/should_run/all.T b/testsuite/tests/codeGen/should_run/all.T index bfe393d129..7604427a00 100644 --- a/testsuite/tests/codeGen/should_run/all.T +++ b/testsuite/tests/codeGen/should_run/all.T @@ -118,3 +118,6 @@ test('T8256', reqlib('vector'), compile_and_run, ['']) test('T6084',normal, compile_and_run, ['-O2']) test('StaticArraySize', normal, compile_and_run, ['-O2']) test('StaticByteArraySize', normal, compile_and_run, ['-O2']) +test('CopySmallArray', normal, compile_and_run, ['']) +test('CopySmallArrayStressTest', normal, compile_and_run, ['']) +test('SizeOfSmallArray', normal, compile_and_run, ['']) |