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add code orange loop cycle optimization settings #44

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add code orange loop cycle optimization settings #44

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bbde356
add code orange loop cycle optimization settings
MatthewChoulas May 13, 2023
21688c4
add heap size constants
MatthewChoulas May 13, 2023
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21 changes: 21 additions & 0 deletions build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,8 @@ def TEAM = 4099
def ROBOT_MAIN_CLASS = "com.team4099.robot2023.Main"
def includeDesktopSupport = true

final MAX_JAVA_HEAP_SIZE_MB = 100;

// Define my targets (RoboRIO) and artifacts (deployable files)
// This is added by GradleRIO's backing project EmbeddedTools.
deploy {
Expand All @@ -34,8 +36,27 @@ deploy {
// getTargetTypeClass is a shortcut to get the class type using a string

frcJava(getArtifactTypeClass('FRCJavaArtifact')) {
gcType = 'other'

jvmArgs.add("-XX:+UnlockExperimentalVMOptions")
jvmArgs.add("-Xmx" + MAX_JAVA_HEAP_SIZE_MB + "M")
jvmArgs.add("-Xms" + MAX_JAVA_HEAP_SIZE_MB + "M")
// Set the minimum heap size to the maximum heap size to avoid resizing
jvmArgs.add("-Djoml.fastmath=false")
// Disable fast math for JOML (it causes all sorts of weird issues)
jvmArgs.add("-ea") // Enable assertions
jvmArgs.add("-XX:+UseG1GC")
// Higher than the default 1ms, but allows for more consistent performance
jvmArgs.add("-XX:MaxGCPauseMillis=10")
jvmArgs.add("-XX:+AlwaysPreTouch")// Pre-touch memory pages used by the JVM during initialization
//jvmArgs.add("-XX:+ParallelRefProcEnabled") // Use multiple threads to clean up reference objects
// Causes GC to write to file system which can cause major latency if disk IO is high -- See https://www.evanjones.ca/jvm-mmap-pause.html
jvmArgs.add("-XX:+PerfDisableSharedMem")
//jvmArgs.add("-Xlog:gc*:/home/lvuser/gclogs/gc.log:time,uptime:filecount=5,filesize=1M")
// Log GC events to a file
}


// Static files artifact
frcStaticFileDeploy(getArtifactTypeClass('FileTreeArtifact')) {
files = project.fileTree('src/main/deploy')
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