8367135: Test compiler/loopstripmining/CheckLoopStripMining.java needs internal timeouts adjusted

Backport-of: 0632617

Author: rm-gh-8

test/hotspot/jtreg/compiler/loopstripmining/CheckLoopStripMining.java

@@ -42,8 +42,8 @@ public static void main(String args[]) throws Exception {
                                     "-XX:+SafepointTimeout",
                                     "-XX:+SafepointALot",
                                     "-XX:+AbortVMOnSafepointTimeout",
-                                    "-XX:SafepointTimeoutDelay=" + Utils.adjustTimeout(300),
-                                    "-XX:GuaranteedSafepointInterval=" + Utils.adjustTimeout(300),
+                                    "-XX:SafepointTimeoutDelay=" + Utils.adjustTimeout(1200),
+                                    "-XX:GuaranteedSafepointInterval=" + Utils.adjustTimeout(1200),
                                     "-XX:-TieredCompilation",
                                     "-XX:+UseCountedLoopSafepoints",
                                     "-XX:LoopStripMiningIter=1000",
@@ -58,8 +58,8 @@ public static void main(String args[]) throws Exception {
                                     "-XX:+SafepointTimeout",
                                     "-XX:+SafepointALot",
                                     "-XX:+AbortVMOnSafepointTimeout",
-                                    "-XX:SafepointTimeoutDelay=" + Utils.adjustTimeout(300),
-                                    "-XX:GuaranteedSafepointInterval=" + Utils.adjustTimeout(300),
+                                    "-XX:SafepointTimeoutDelay=" + Utils.adjustTimeout(1200),
+                                    "-XX:GuaranteedSafepointInterval=" + Utils.adjustTimeout(1200),
                                     "-XX:-TieredCompilation",
                                     "-XX:+UseCountedLoopSafepoints",
                                     "-XX:LoopStripMiningIter=1000",