substrate_vm

gistfile1.txt

WITHOUT DEBUG SYMBOLS DWARF

arguments(
        '-H:+PreserveFramePointer',
        '--no-server',
        '--no-fallback',
        '--enable-all-security-services',
        '--report-unsupported-elements-at-runtime'
)

-rwxrwxr-x 1 sergej sergej 9483000 Jan 17 17:20 topten*

    ~/Development/Development/SVMPlayground ldd build/native-image/file                                                                                                             ✔   25s  16:47:31
	linux-vdso.so.1 (0x00007ffd67b9b000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f5609111000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f560910b000)
	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f56090ef000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f5608efd000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f56099e8000)

WITH DWARF

arguments(
        '-H:GenerateDebugInfo=1',
        '-H:DebugInfoSourceSearchPath=/home/sergej/Development/Development/SVMPlayground/src/main/java/de/sergejisbrecht',
        '-H:+PreserveFramePointer',
        '--no-server',
        '--no-fallback',
        '--enable-all-security-services',
        '--report-unsupported-elements-at-runtime'
)

-rwxrwxr-x 1 sergej sergej 14582464 Jan 17 17:16 topten*

COMPILATION-TIME

    ~/Development/Development/SVMPlayground time ./gradlew nativeImage                                                                                                                      ✔  16:54:20
> Task :nativeImage
[topten:389763]    classlist:   1,102.46 ms,  0.96 GB
[topten:389763]        (cap):     530.00 ms,  0.96 GB
[topten:389763]        setup:   1,644.79 ms,  0.96 GB
[topten:389763]     (clinit):     203.09 ms,  1.22 GB
[topten:389763]   (typeflow):   4,615.33 ms,  1.22 GB
[topten:389763]    (objects):   3,542.47 ms,  1.22 GB
[topten:389763]   (features):     278.51 ms,  1.22 GB
[topten:389763]     analysis:   8,972.10 ms,  1.22 GB
[topten:389763]     universe:     370.92 ms,  1.22 GB
[topten:389763]      (parse):   1,054.40 ms,  1.71 GB
[topten:389763]     (inline):   1,578.69 ms,  1.71 GB
[topten:389763]    (compile):   7,256.46 ms,  2.34 GB
[topten:389763]      compile:  10,377.30 ms,  2.34 GB
[topten:389763]        image:   1,065.57 ms,  2.34 GB
[topten:389763]        write:     181.18 ms,  2.34 GB
[topten:389763]      [total]:  23,852.59 ms,  2.34 GB
________________________________________________________
Executed in   25,51 secs   fish           external
   usr time  1444,47 millis  954,00 micros  1443,52 millis
   sys time  159,43 millis  382,00 micros  159,05 millis

native-image --version

Toolchain
    --libc                selects the libc implementation to use. Available implementations:
                          glibc, musl
    --native-compiler-options
                          provide custom C compiler option used for query code compilation.
    --native-compiler-path
                          provide custom path to C compiler used for query code compilation
                          and linking.
    --native-image-info   show native-toolchain information and image-build settings

EXECUTION TIME

    ~/Development/Development/SVMPlayground/build/native-image time ./topten /home/sergej/Downloads/big2.txt                                                                        ✔   13s  16:56:04
und = 742224
der = 300752
die = 265888
da = 215936
zu = 161360
sie = 157024
den = 140000
er = 139776
das = 139760
ich = 129824

________________________________________________________
Executed in   13,70 secs   fish           external
   usr time   13,52 secs    0,00 micros   13,52 secs
   sys time    0,16 secs  1545,00 micros    0,16 secs


FLAMEGRAPH with DWARF

    ~/Development/Development/SVMPlayground/build/native-image flamegraph -c "record -F 99 -g" -- ./topten /home/sergej/Downloads/big2.txt                                                  ✔  17:16:44


Setup:

Linux sergej-ThinkPad-P50 5.8.0-36-generic #40~20.04.1-Ubuntu SMP Wed Jan 6 10:15:55 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

You may need to install the following packages for this specific kernel:
    linux-tools-5.8.0-36-generic
    linux-cloud-tools-5.8.0-36-generic

GraalVM Version 20.3.0 (Java Version 11.0.9+10-jvmci-20.3-b06)

# echo 1 > sudo tee /proc/sys/kernel/perf_event_paranoid
# echo 0 > sudo tee /proc/sys/kernel/kptr_restrict

jdk install java 20.3.0.r11-grl

package de.sergejisbrecht;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.function.Function;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class TopTen {
  private static final Pattern PATTERN_REPLACE = Pattern.compile("[^a-zA-Z]");
  private static final Pattern PATTERN_SPLIT = Pattern.compile("\\b");

  // /usr/bin/time ...
  public static void main(String[] args) {
    Arrays.stream(args)
        .parallel()
        .flatMap(TopTen::fileLines)
        .flatMap(TopTen::split)
        .map(TopTen::replace)
        .filter(word -> word.length() > 0)
        .map(String::toLowerCase)
        .collect(Collectors.groupingBy(Function.identity(), Collectors.counting()))
        .entrySet()
        .stream()
        .sorted((a, b) -> -a.getValue().compareTo(b.getValue()))
        .limit(10)
        .forEach(e -> System.out.format("%s = %d%n", e.getKey(), e.getValue()));
  }

  private static String replace(String word) {
    // word.replaceAll("[^a-zA-Z]", "");
    Matcher matcher = PATTERN_REPLACE.matcher(word);
    return matcher.replaceAll("");
  }

  private static Stream<String> split(String word) {
    // line.split("\\b")
    return Arrays.stream(PATTERN_SPLIT.split(word));
  }

  private static Stream<String> fileLines(String path) {
    try {
      return Files.lines(Paths.get(path));
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
}