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changeset 16145:237508bd73b9

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when Graal bootstrap is enabled (explicitly or implicitly), allocate same number of Graal compiler threads in -UseGraalCompilationQueue as in +UseGraalCompilationQueue
author Doug Simon <doug.simon@oracle.com>
date Thu, 19 Jun 2014 23:41:46 +0200
parents af9f3a5f091b
children 9b27e69f7cec
files src/share/vm/compiler/compileBroker.cpp
diffstat 1 files changed, 13 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/vm/compiler/compileBroker.cpp	Thu Jun 19 11:24:16 2014 +0200
+++ b/src/share/vm/compiler/compileBroker.cpp	Thu Jun 19 23:41:46 2014 +0200
@@ -805,7 +805,19 @@
 
 #if defined(COMPILERGRAAL)
   _compilers[1] = graal;
-  c2_count = UseGraalCompilationQueue ? 0 : FLAG_IS_DEFAULT(GraalThreads) ? c2_count : GraalThreads;
+  if (UseGraalCompilationQueue) {
+    c2_count = 0;
+  } else {
+    if (FLAG_IS_DEFAULT(GraalThreads)) {
+      if (!TieredCompilation && FLAG_IS_DEFAULT(BootstrapGraal) || BootstrapGraal) {
+        // Graal will bootstrap so give it the same number of threads
+        // as we would give the Java based compilation queue.
+        c2_count = os::active_processor_count();
+      }
+    } else {
+      c2_count = GraalThreads;
+    }
+  }
 #endif // COMPILERGRAAL
 
 #ifdef COMPILER2