Primitive hash (#345)

* Calculate average by vaidhy

* Calculate average by vaidhy

* More changes

* remove worker log

* Pass -Dparellelism and switch back to open

* Try out mmap

* Improve mmap solution

* no copy version

* reduce threads

* hash code computed on the fly

* Reuse the char (Do not know if it helps)

* primitive hash map

* Primite HashMap

* Micro optimizations to push for optimizations

* Revert "Micro optimizations to push for optimizations"

This reverts commit ea333e2821ebb5c1d6d71a4e87e569a8f2f8f7f0.

* Micro optimizations to get the juice

* floorMod fixes

* findSemi and findNewLine as separate functions

* Optimized parseDouble

* More micro changes

* Aligned equal check

* more small changes

* XOR instead of compare

* Reduce loop length

* Revert changes

* Loop optimization and added native build

* Hand unrolled findSemi loop.

* Remove incorrect comments

* Taking care fo PR comments

* Add prepare script

* Missing header error fix

* remove wrong comment

---------

Co-authored-by: Anita S V <anitasvasu@gmail.com>
Co-authored-by: Anita SV <anitvasu@amazon.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/prepare_vaidhy.sh b/prepare_vaidhy.sh
new file mode 100755
index 0000000..f83a3ff
--- /dev/null
+++ b/prepare_vaidhy.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+#
+#  Copyright 2023 The original authors
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+source "$HOME/.sdkman/bin/sdkman-init.sh"
+sdk use java 21.0.1-graal 1>&2