Can't run skeleton template on a roborio 1

[Emma03L]

Describe the bug
When trying to run the basic skeleton template on a roborio 1 you get an error saying there is insufficient memory

To Reproduce
Open the skeleton template from v4.0.0-beta-1 release.
Build the project and deploy to a roborio 1.

Expected behavior
The skeleton template should not cause memory problems.

Screenshots

Version (required):

• OS: Windows 11
• Wpilib: 2025.1.1-beta-2
• Java version: 17
• vendor deps versions the same as the skeleton project

[jwbonner]

We're experimenting with some different GC options for the AdvantageKit templates this year, with the goal of improving performance on the RIO 1 and 2. After some further testing, there area some specific optimizations that we will probably disable by default because they can cause these types of issues on the RIO 1 (despite improving performance on the RIO 2).

Try updating build.gradle to include only the following settings under frcJava(getArtifactTypeClass('FRCJavaArtifact')):

frcJava(getArtifactTypeClass('FRCJavaArtifact')) {
    jvmArgs.add("-XX:GCTimeRatio=5")
    jvmArgs.add("-XX:+UseSerialGC")
    jvmArgs.add("-XX:MaxGCPauseMillis=50")
}

This is closer to WPILib's default settings, and seems to work well on the RIO 1 in my testing. We will probably switch the default GC in the templates to this configuration, with documentation for additional options RIO 2 users may want to enable.

[21-CameronM]

I've been experiencing the same issue on our RIO 1. With the specified changes to the build.gradle (which appear to have already been in the build.gradle when I downloaded the skeleton template), it is still crashing. When SSH'ing into the rio, I'm able to see there's between 30-45MB free, but the program is attempted to allocate ~70MB.

# /tmp/hs_err_pid6134.log
# An error report file with more information is saved as:  
# Native memory allocation (mmap) failed to map 69992448 bytes for committing reserved memory.  
# There is insufficient memory for the Java Runtime Environment to continue. 

[jwbonner]

The updates I posted are not in the posted skeleton template. The lines I posted should be the only configuration under frcJava.