From aee71b961d8e9b799020d819e370edfc51c82576 Mon Sep 17 00:00:00 2001 From: Matteo Vaccari Date: Wed, 17 Jan 2024 21:26:19 +0100 Subject: My own solution -- memory mapping the files, running in parallel threads, using a state machine to parse the file (#466) * Golang implementation * Speed up by avoiding copying the lines * Memory mapping * Add script for testing * Now passing most of the tests * Refactor to composed method * Now using integer math throughout * Now using a state machine for parsing! * Refactoring state names * Enabling profiling * Running in parallel! * Fully parallel! * Refactor * Improve type safety of methods * The rounding problem is due to difference between Javas and Gos printf implementation * Converting my solution to Java * Merging results * Splitting the file in several buffers * Made it parallel! * Removed test file * Removed go implementation * Removed unused files * Add header to .sh file --------- Co-authored-by: Matteo Vaccari --- calculate_average_xpmatteo.sh | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100755 calculate_average_xpmatteo.sh (limited to 'calculate_average_xpmatteo.sh') diff --git a/calculate_average_xpmatteo.sh b/calculate_average_xpmatteo.sh new file mode 100755 index 0000000..d1cd870 --- /dev/null +++ b/calculate_average_xpmatteo.sh @@ -0,0 +1,20 @@ +#!/bin/sh +# +# 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. +# + +JAVA_OPTS="--enable-preview" +java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_xpmatteo + -- cgit v1.2.3