archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-19 02:24:40 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8252329: runtime/LoadClass/TestResize.java timed out

Browse source 
Reviewed-by: hseigel, iklam
This commit is contained in:
Coleen Phillimore 2022-07-07 20:27:31 +00:00
parent 3e60e82814
commit f93beacd2f
4 changed files with 57 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

58
test/hotspot/jtreg/runtime/LoadClass/TestResize.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2017, 2021, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2017, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -46,6 +46,7 @@ import java.util.Scanner;
public class TestResize {
static double MAX_LOAD_FACTOR = 5.0; // see _resize_load_trigger in dictionary.cpp
static int CLASSES_TO_LOAD = 30000;
static int getInt(String string) {
int start = 0;
@ -73,6 +74,7 @@ public class TestResize {
analyzer.shouldHaveExitValue(0);
boolean resized = false;
boolean checked_load_factor = false;
// Split string into lines using platform independent end of line marker.
String[] lines = output.split("\\R");
@ -82,45 +84,57 @@ public class TestResize {
if (line.contains("resizing system dictionaries")) {
resized = true;
}
} else if (resized && line.startsWith("Java dictionary (")) {
// ex. Java dictionary (table_size=10103, classes=5002)
Scanner scanner = new Scanner(line);
scanner.next(); // skip "Java"
scanner.next(); // skip "dictionary"
int table_size = getInt(scanner.next()); // process "(table_size=40423"
int classes = getInt(scanner.next()); // process ", classes=50002"
scanner.close();
} else if (resized) {
int index = -1;
if ((index = line.indexOf("Java dictionary (")) != -1) {
// ex. Java dictionary (table_size=10103, classes=5002)
String dict = line.substring(index);
Scanner scanner = new Scanner(dict);
scanner.next(); // skip "Java"
scanner.next(); // skip "dictionary"
int table_size = getInt(scanner.next()); // process "(table_size=40423"
int classes = getInt(scanner.next()); // process ", classes=50002"
scanner.close();
double loadFactor = (double)classes / (double)table_size;
if (loadFactor > MAX_LOAD_FACTOR) {
checked_load_factor = classes >= CLASSES_TO_LOAD;
// We've hit an error, so print all of the output.
System.out.println(output);
double loadFactor = (double)classes / (double)table_size;
if (loadFactor > MAX_LOAD_FACTOR) {
throw new RuntimeException("Load factor too high, expected MAX " + MAX_LOAD_FACTOR +
", got " + loadFactor + " [table size " + table_size + ", number of clases " + classes + "]");
} else {
System.out.println("PASS table_size: " + table_size + ", classes: " + classes +
", load factor: " + loadFactor + " <= " + MAX_LOAD_FACTOR);
// There are more than one system dictionary to check, so keep looking...
// We've hit an error, so print all of the output.
System.out.println(output);
throw new RuntimeException("Load factor too high, expected MAX " + MAX_LOAD_FACTOR +
", got " + loadFactor + " [table size " + table_size + ", number of clases " + classes + "]");
} else {
checked_load_factor = true;
System.out.println("PASS table_size: " + table_size + ", classes: " + classes +
", load factor: " + loadFactor + " <= " + MAX_LOAD_FACTOR);
// There are more than one system dictionary to check, so keep looking...
}
}
}
}
if (!resized) {
System.out.println("PASS trivially. No resizing occurred, so did not check the load.");
} else {
// Make sure the load factor was checked
if (!checked_load_factor) {
throw new RuntimeException("Test didn't check load factor");
}
}
}
public static void main(String[] args) throws Exception {
// -XX:+PrintSystemDictionaryAtExit will print the details of system dictionary,
// -XX:+PrintClassLoaderDataGraphAtExit will print the summary of the dictionaries,
// that will allow us to calculate the table's load factor.
// -Xlog:safepoint+cleanup will print out cleanup details at safepoint
// that will allow us to detect if the system dictionary resized.
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+PrintSystemDictionaryAtExit",
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+PrintClassLoaderDataGraphAtExit",
"-Xlog:safepoint+cleanup",
"TriggerResize",
"50000");
String.valueOf(CLASSES_TO_LOAD));
analyzeOutputOn(pb);
}
}