A DESCRIPTION OF THE PROBLEM :
-XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=256m -XX:+UseG1GC -Xmx1024m -ea

JVM version is 25.291-b10

using thread-local object allocation.
Garbage-First (G1) GC with 13 thread(s)

Heap Configuration:
   MinHeapFreeRatio = 40
   MaxHeapFreeRatio = 70
   MaxHeapSize = 1073741824 (1024.0MB)
   NewSize = 1363144 (1.2999954223632812MB)
   MaxNewSize = 643825664 (614.0MB)
   OldSize = 5452592 (5.1999969482421875MB)
   NewRatio = 2
   SurvivorRatio = 8
   MetaspaceSize = 134217728 (128.0MB)
   CompressedClassSpaceSize = 260046848 (248.0MB)
   MaxMetaspaceSize = 268435456 (256.0MB)
   G1HeapRegionSize = 1048576 (1.0MB)

Heap Usage:
G1 Heap:
   regions = 1024
   capacity = 1073741824 (1024.0MB)
   used = 128564536 (122.60869598388672MB)
   free = 945177288 (901.3913040161133MB)
   11.973505467176437% used
G1 Young Generation:
Eden Space:
   regions = 1
   capacity = 2097152 (2.0MB)
   used = 1048576 (1.0MB)
   free = 1048576 (1.0MB)
   50.0% used
Survivor Space:
   regions = 15
   capacity = 15728640 (15.0MB)
   used = 15728640 (15.0MB)
   free = 0 (0.0MB)
   100.0% used
G1 Old Generation:
   regions = 108
   capacity = 270532608 (258.0MB)
   used = 111787320 (106.60869598388672MB)
   free = 158745288 (151.39130401611328MB)
   41.32119999375454% used

32522 interned Strings occupying 3387176 bytes.


REGRESSION : Last worked in version 8

ACTUAL -
S0 S1 E O M CCS YGC YGCT FGC FGCT GCT LGCC GCC
0.00 100.00 50.00 41.32 95.52 89.19 364 1.737 1 0.140 1.876 G1 Evacuation Pause No GC


#0 0x00007fee2029c3ca in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1 0x00007fee2029ebd0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2 0x00007fee1fb1dbab in os::PlatformEvent::park() () from /usr/java/jdk1.8.0_291-amd64/jre/lib/amd64/server/libjvm.so
#3 0x00007fee1fad2d19 in Monitor::IWait(Thread*, long) () from /usr/java/jdk1.8.0_291-amd64/jre/lib/amd64/server/libjvm.so
#4 0x00007fee1fad42be in Monitor::wait(bool, long, bool) () from /usr/java/jdk1.8.0_291-amd64/jre/lib/amd64/server/libjvm.so
#5 0x00007fee1f7c12ae in GC_locker::stall_until_clear() () from /usr/java/jdk1.8.0_291-amd64/jre/lib/amd64/server/libjvm.so
#6 0x00007fee1f78d90b in G1CollectedHeap::attempt_allocation_slow(unsigned long, unsigned char, unsigned int*, unsigned int*) () from /usr/java/jdk1.8.0_291-amd64/jre/lib/amd64/server/libjvm.so
#7 0x00007fee1f78db23 in G1CollectedHeap::allocate_new_tlab(unsigned long) () from /usr/java/jdk1.8.0_291-amd64/jre/lib/amd64/server/libjvm.so
#8 0x00007fee1f65e7ab in CollectedHeap::allocate_from_tlab_slow(KlassHandle, Thread*, unsigned long) () from /usr/java/jdk1.8.0_291-amd64/jre/lib/amd64/server/libjvm.so
#9 0x00007fee1fc9e293 in TypeArrayKlass::allocate_common(int, bool, Thread*) () from /usr/java/jdk1.8.0_291-amd64/jre/lib/amd64/server/libjvm.so
#10 0x00007fee1fbc00f6 in OptoRuntime::new_array_nozero_C(Klass*, int, JavaThread*) () from /usr/java/jdk1.8.0_291-amd64/jre/lib/amd64/server/libjvm.so