> The goal is to develop faster sort routines for x86_64 CPUs by taking > advantage of AVX2 instructions. This enhancement provides an order of > magnitude speedup for Arrays.sort() using int, long, float and double arrays. > > For serial sort on random data, this PR shows upto ~7.5x improvement for > 32-bit datatypes (int, float) on Intel TigerLake machine as shown in the > performance data below. > > For parallel sort on random data, this PR shows upto ~3.4x for 32-bit > datatypes (int, float) as shown below. > > **Note:** This PR also improves the performance of AVX512 sort by upto 35%. > > <html xmlns:v="urn:schemas-microsoft-com:vml" > xmlns:o="urn:schemas-microsoft-com:office:office" > xmlns:x="urn:schemas-microsoft-com:office:excel" > xmlns="http://www.w3.org/TR/REC-html40";> > > <head> > > <meta name=ProgId content=Excel.Sheet> > <meta name=Generator content="Microsoft Excel 15"> > <link id=Main-File rel=Main-File > href="file:///C:/Users/sparasa/AppData/Local/Temp/msohtmlclip1/01/clip.htm"> > <link rel=File-List > href="file:///C:/Users/sparasa/AppData/Local/Temp/msohtmlclip1/01/clip_filelist.xml"> > > > </head> > > <body link="#0563C1" vlink="#954F72"> > > > > Benchmark (Serial Sort) | Size | Baseline (us/op) | AVX2 (us/op) | > Speedup > -- | -- | -- | -- | -- > ArraysSort.intSort | 10 | 0.034 | 0.029 | 1.2 > ArraysSort.intSort | 25 | 0.088 | 0.044 | 2.0 > ArraysSort.intSort | 50 | 0.239 | 0.159 | 1.5 > ArraysSort.intSort | 75 | 0.417 | 0.27 | 1.5 > ArraysSort.intSort | 100 | 0.572 | 0.265 | 2.2 > ArraysSort.intSort | 1000 | 10.098 | 4.282 | 2.4 > ArraysSort.intSort | 10000 | 330.065 | 43.383 | 7.6 > ArraysSort.intSort | 100000 | 4099.527 | 778.943 | 5.3 > ArraysSort.intSort | 1000000 | 49150.16 | 9634.335 | 5.1 > ArraysSort.floatSort | 10 | 0.045 | 0.043 | 1.0 > ArraysSort.floatSort | 25 | 0.105 | 0.073 | 1.4 > ArraysSort.floatSort | 50 | 0.278 | 0.216 | 1.3 > ArraysSort.floatSort | 75 | 0.476 | 0.241 | 2.0 > ArraysSort.floatSort | 100 | 0.583 | 0.313 | 1.9 > ArraysSort.floatSort | 1000 | 10.182 | 4.329 | 2.4 > ArraysSort.floatSort | 10000 | 323.136 | 57.175 | 5.7 > ArraysSort.floatSort | 100000 | 4299.519 | 862.63 | 5.0 > ArraysSort.floatSort | 1000000 | 50889.4 | 10972.19 | 4.6 > > </body> > > </html> > > <html xmlns:v="urn:schemas-microsoft-com:vml" > xmlns:o="urn:schemas-microsoft-com:office:office" > xmlns:x="urn:schemas-microsoft-com:office:excel" > xmlns="http://www.w3.org/TR/REC-html40";> > > <head> > > <meta name=ProgId content=Excel.Sheet> > <meta name=Generator content="Microsoft Excel 15"> > <link id=Main-File rel=Main-File > href="file:///C:/Users/...
Srinivas Vamsi Parasa has updated the pull request incrementally with one additional commit since the last revision: Remove C++17 from C flags ------------- Changes: - all: https://git.openjdk.org/jdk/pull/16534/files - new: https://git.openjdk.org/jdk/pull/16534/files/893951e8..e880917c Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=16534&range=04 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=16534&range=03-04 Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/16534.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/16534/head:pull/16534 PR: https://git.openjdk.org/jdk/pull/16534
