| #------------------------------------------------------------- |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you 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. |
| # |
| #------------------------------------------------------------- |
| |
| X = rand(rows=10000, cols=1000, seed=42); |
| y = rand(rows=10000, cols=1000, seed=43); |
| S = matrix(0, rows=1, cols=3); |
| |
| for (j in 1:2) { |
| X1 = X; |
| y1 = y; |
| S1 = 0; |
| # fill half of the cache |
| for (i in 1:20) { |
| R = X1 * y1; |
| X1 = cbind(X1, rand(rows=10000, cols=1, seed=42)); |
| y1 = cbind(y1, rand(rows=10000, cols=1, seed=42)); |
| while(FALSE){} |
| S1 = S1 + sum(R); |
| } |
| } |
| S[,1] = S1; |
| |
| X2 = X; |
| y2 = y; |
| S2 = 0; |
| # reuse (saves cache pollution) |
| for (i in 1:20) { |
| R = X2 * y2; |
| X2 = cbind(X2, rand(rows=10000, cols=1, seed=42)); |
| y2 = cbind(y2, rand(rows=10000, cols=1, seed=42)); |
| while(FALSE){} |
| S2 = S2 + sum(R); |
| } |
| S[,2] = S2; |
| |
| # generate eviction |
| for (i in 1:20) { |
| R = X1 * y1; |
| X1 = cbind(X1, rand(rows=10000, cols=1, seed=42)); |
| y1 = cbind(y1, rand(rows=10000, cols=1, seed=42)); |
| while(FALSE){} |
| S1 = S1 + sum(R); |
| } |
| S[,3] = S1; |
| |
| write(S, $1, format="text"); |
| |