Tune JVM, print full diagnostics on crash.
JVM occasionally (0.5% time) crashes on entering a method with SIGSEGV.
It might be due to excessive load on the host machine. Reduce the number
of the compiler threads to 6, and do not start all the GC threads
immediately. If JVM crashes, copy full diagnostics to stderr.
Bug: 132766811
Test: treehugger
Change-Id: Ib7bfd568f6d32456bf623cbb615ffc990c326a34
diff --git a/java/config/config.go b/java/config/config.go
index f9552d5..6ade649 100644
--- a/java/config/config.go
+++ b/java/config/config.go
@@ -69,6 +69,8 @@
// b/65004097: prevent using java.lang.invoke.StringConcatFactory when using -target 1.9
`-XDstringConcat=inline`,
}, " "))
+ pctx.StaticVariable("JavaVmFlags", "-XX:OnError=\"cat hs_err_pid%p.log\" -XX:CICompilerCount=6 -XX:+UseDynamicNumberOfGCThreads")
+ pctx.StaticVariable("JavacVmFlags", "-J-XX:OnError=\"cat hs_err_pid%p.log\" -J-XX:CICompilerCount=6 -J-XX:+UseDynamicNumberOfGCThreads")
pctx.VariableConfigMethod("hostPrebuiltTag", android.Config.PrebuiltOS)