8270908: TestParallelRefProc fails on single core machines

mychris · Kim Barrett · commit 6e1da6440b89 · 2021-07-28T14:49:02.000Z
Reviewed-by: tschatzl, kbarrett
diff --git a/test/hotspot/jtreg/gc/arguments/TestParallelRefProc.java b/test/hotspot/jtreg/gc/arguments/TestParallelRefProc.java
@@ -51,7 +51,9 @@ public static void main(String args[]) throws Exception {
         }
         if (GC.Parallel.isSupported()) {
             noneGCSupported = false;
-            testFlag(new String[] { "-XX:+UseParallelGC" }, true);
+            testFlag(new String[] { "-XX:+UseParallelGC", "-XX:ParallelGCThreads=1" }, false);
+            testFlag(new String[] { "-XX:+UseParallelGC", "-XX:ParallelGCThreads=2" }, true);
+            testFlag(new String[] { "-XX:+UseParallelGC", "-XX:-ParallelRefProcEnabled", "-XX:ParallelGCThreads=2" }, false);
         }
         if (GC.G1.isSupported()) {
             noneGCSupported = false;

Original file line number	Diff line number	Diff line change
`@@ -51,7 +51,9 @@ public static void main(String args[]) throws Exception {`
`51`	`51`	`}`
`52`	`52`	`if (GC.Parallel.isSupported()) {`
`53`	`53`	`noneGCSupported = false;`
`54`		`- testFlag(new String[] { "-XX:+UseParallelGC" }, true);`
	`54`	`+ testFlag(new String[] { "-XX:+UseParallelGC", "-XX:ParallelGCThreads=1" }, false);`
	`55`	`+ testFlag(new String[] { "-XX:+UseParallelGC", "-XX:ParallelGCThreads=2" }, true);`
	`56`	`+ testFlag(new String[] { "-XX:+UseParallelGC", "-XX:-ParallelRefProcEnabled", "-XX:ParallelGCThreads=2" }, false);`
`55`	`57`	`}`
`56`	`58`	`if (GC.G1.isSupported()) {`
`57`	`59`	`noneGCSupported = false;`