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优化默认 JVM 参数 (#3824)

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Glavo 2025-04-15 03:46:33 +08:00 committed by GitHub
parent cc16f84992
commit 73fb8bda10
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GPG Key ID: B5690EEEBB952194
2 changed files with 36 additions and 9 deletions
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6
HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java
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@ -509,16 +509,16 @@ public class HMCLGameRepository extends DefaultGameRepository {
public static long getAllocatedMemory(long minimum, long available, boolean auto) {
if (auto) {
available -= 384 * 1024 * 1024; // Reserve 384MiB memory for off-heap memory and HMCL itself
available -= 512 * 1024 * 1024; // Reserve 512 MiB memory for off-heap memory and HMCL itself
if (available <= 0) {
return minimum;
}
final long threshold = 8L * 1024 * 1024 * 1024;
final long threshold = 8L * 1024 * 1024 * 1024; // 8 GiB
final long suggested = Math.min(available <= threshold
? (long) (available * 0.8)
: (long) (threshold * 0.8 + (available - threshold) * 0.2),
16384L * 1024 * 1024);
16L * 1024 * 1024 * 1024);
return Math.max(minimum, suggested);
} else {
return minimum;

39
HMCLCore/src/main/java/org/jackhuang/hmcl/launch/DefaultLauncher.java
View File

@ -189,30 +189,57 @@ public class DefaultLauncher extends Launcher {
if (OperatingSystem.CURRENT_OS != OperatingSystem.WINDOWS)
res.addDefault("-Duser.home=", options.getGameDir().getParent());
// Using G1GC with its settings by default
if (options.getJava().getParsedVersion() >= 8
&& res.noneMatch(arg -> "-XX:-UseG1GC".equals(arg) || (arg.startsWith("-XX:+Use") && arg.endsWith("GC")))) {
final int javaVersion = options.getJava().getParsedVersion();
final boolean is64bit = options.getJava().getBits() == Bits.BIT_64;
res.addUnstableDefault("UnlockExperimentalVMOptions", true);
res.addUnstableDefault("UnlockDiagnosticVMOptions", true);
// Using G1GC with its settings by default
if (javaVersion >= 8
&& res.noneMatch(arg -> "-XX:-UseG1GC".equals(arg) || (arg.startsWith("-XX:+Use") && arg.endsWith("GC")))) {
res.addUnstableDefault("UseG1GC", true);
res.addUnstableDefault("G1MixedGCCountTarget", "5");
res.addUnstableDefault("G1NewSizePercent", "20");
res.addUnstableDefault("G1ReservePercent", "20");
res.addUnstableDefault("MaxGCPauseMillis", "50");
res.addUnstableDefault("G1HeapRegionSize", "32m");
}
res.addUnstableDefault("UseAdaptiveSizePolicy", false);
res.addUnstableDefault("OmitStackTraceInFastThrow", false);
// JIT Options
if (javaVersion <= 8) {
res.addUnstableDefault("MaxInlineLevel", "15");
}
if (is64bit && OperatingSystem.TOTAL_MEMORY > 4 * 1024) {
res.addUnstableDefault("DontCompileHugeMethods", false);
res.addUnstableDefault("MaxNodeLimit", "240000");
res.addUnstableDefault("NodeLimitFudgeFactor", "8000");
res.addUnstableDefault("TieredCompileTaskTimeout", "10000");
res.addUnstableDefault("ReservedCodeCacheSize", "400M");
if (javaVersion >= 9) {
res.addUnstableDefault("NonNMethodCodeHeapSize", "12M");
res.addUnstableDefault("ProfiledCodeHeapSize", "194M");
}
if (javaVersion >= 8) {
res.addUnstableDefault("NmethodSweepActivity", "1");
}
}
// As 32-bit JVM allocate 320KB for stack by default rather than 64-bit version allocating 1MB,
// causing Minecraft 1.13 crashed accounting for java.lang.StackOverflowError.
if (options.getJava().getBits() == Bits.BIT_32) {
if (!is64bit) {
res.addDefault("-Xss", "1m");
}
if (options.getJava().getParsedVersion() == 16)
if (javaVersion == 16)
res.addDefault("--illegal-access=", "permit");
if (javaVersion == 24 || javaVersion == 25)
res.addDefault("--sun-misc-unsafe-memory-access=", "allow");
res.addDefault("-Dfml.ignoreInvalidMinecraftCertificates=", "true");
res.addDefault("-Dfml.ignorePatchDiscrepancies=", "true");
}