Question #693505 on Sikuli changed:
https://answers.launchpad.net/sikuli/+question/693505
Status: Open => Answered
RaiMan proposed the following answer:
This is my test program (latest Java 8 on macOS 10.15 (iMac: 3 GHz
6-Core Intel Core i5))
package com.sikulix.testAPI;
import org.sikuli.script.*;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
public class Run {
public static void main(String[] args) {
ImagePath.add("com.sikulix.testAPI.Run/images");
Screen screen = new Screen();
int regw = 300;
int regh = 300;
Region reg = new Region(0, 0, regw, regh);
//to run the image search global init (adds to the first search)
Image img = Image.create("img");
reg.has(img);
System.out.println(String.format("***** region: %dx%d", regw, regh));
doit(regw, regh, 1, img);
doit(regw, regh, 10, img);
doit(regw, regh, 100, img);
regw = screen.w;
regh = screen.h;
System.out.println(String.format("***** region: %dx%d", regw, regh));
doit(regw, regh, 1, img);
doit(regw, regh, 10, img);
doit(regw, regh, 100, img);
}
private static void doit(int regw, int regh, int nmax, Image img) {
long start = new Date().getTime();
for (int n = 0; n < nmax; n++) {
Region reg = new Region(0, 0, regw, regh);
reg.has("img");
}
long duration = new Date().getTime() - start;
System.out.println("nmax: " + nmax);
System.out.println("duration: " + duration);
List<Thread> threads = new ArrayList<>();
for (int n = 0; n < nmax; n++) {
threads.add(new Thread(() -> {
Region regt = new Region(0, 0, regw, regh);
regt.has(img);
}));
}
start = new Date().getTime();
for (Thread thx : threads) {
thx.start();
}
for (Thread thx : threads) {
try {
thx.join();
} catch (InterruptedException e) {
}
}
duration = new Date().getTime() - start;
System.out.println("duration threads: " + duration);
}
}
This is the output:
***** region: 300x300
nmax: 1
duration: 16
duration threads: 17
nmax: 10
duration: 160
duration threads: 104
nmax: 100
duration: 1539
duration threads: 908
***** region: 2048x1152
nmax: 1
duration: 324
duration threads: 333
nmax: 10
duration: 3103
duration threads: 1675
nmax: 100
duration: 29967
duration threads: 14638
Which meets my experiences that I made with the implementation of
Region.findAny() (internally uses a similar construct with threads):
Getting down to 50% elapsed time is the best you can get.
I guess this is due to some internal resource-locking, probably in the
AWT-Robot when capturing the screen.
I will keep an eye on this on the way to the final 2.0.5.
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