8244817: Add configuration logging similar to ZGCs to other GCs

Reviewed-by: kbarrett, pliden, shade

src/hotspot/share/gc/g1/g1CollectedHeap.cpp

@@ -47,6 +47,7 @@
 #include "gc/g1/g1HeapTransition.hpp"
 #include "gc/g1/g1HeapVerifier.hpp"
 #include "gc/g1/g1HotCardCache.hpp"
+#include "gc/g1/g1InitLogger.hpp"
 #include "gc/g1/g1MemoryPool.hpp"
 #include "gc/g1/g1OopClosures.inline.hpp"
 #include "gc/g1/g1ParallelCleaning.hpp"
@@ -1824,6 +1825,8 @@ jint G1CollectedHeap::initialize() {
 
   _collection_set.initialize(max_regions());
 
+  G1InitLogger::print();
+
   return JNI_OK;
 }
 

src/hotspot/share/gc/g1/g1InitLogger.cpp

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc/g1/g1InitLogger.hpp"
+#include "logging/log.hpp"
+#include "runtime/globals.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+void G1InitLogger::print_heap() {
+  log_info(gc, init)("Heap Region Size: " SIZE_FORMAT "M", G1HeapRegionSize / M);
+  GCInitLogger::print_heap();
+}
+
+void G1InitLogger::print_workers() {
+  GCInitLogger::print_workers();
+  if (G1ConcRefinementThreads > 0) {
+    log_info(gc, init)("Concurrent Refinement Workers: %u", G1ConcRefinementThreads);
+  }
+}
+
+void G1InitLogger::print() {
+  G1InitLogger init_log;
+  init_log.print_all();
+}

src/hotspot/share/gc/g1/g1InitLogger.hpp

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_GC_G1_G1INITLOGGER_HPP
+#define SHARE_GC_G1_G1INITLOGGER_HPP
+
+#include "gc/shared/gcInitLogger.hpp"
+
+class G1InitLogger : public GCInitLogger {
+ protected:
+  virtual void print_heap();
+  virtual void print_workers();
+
+ public:
+  static void print();
+};
+
+#endif //SHARE_GC_G1_G1INITLOGGER_HPP

src/hotspot/share/gc/g1/heapRegion.cpp

@@ -89,7 +89,6 @@ void HeapRegion::setup_heap_region_size(size_t max_heap_size) {
   // The cast to int is safe, given that we've bounded region_size by
   // MIN_REGION_SIZE and MAX_REGION_SIZE.
   GrainBytes = region_size;
-  log_info(gc, heap)("Heap region size: " SIZE_FORMAT "M", GrainBytes / M);
 
   guarantee(GrainWords == 0, "we should only set it once");
   GrainWords = GrainBytes >> LogHeapWordSize;

src/hotspot/share/gc/parallel/parallelScavengeHeap.cpp

@@ -37,6 +37,7 @@
 #include "gc/shared/gcLocker.hpp"
 #include "gc/shared/gcWhen.hpp"
 #include "gc/shared/genArguments.hpp"
+#include "gc/shared/gcInitLogger.hpp"
 #include "gc/shared/locationPrinter.inline.hpp"
 #include "gc/shared/scavengableNMethods.hpp"
 #include "logging/log.hpp"
@@ -134,6 +135,8 @@ jint ParallelScavengeHeap::initialize() {
   // Set up WorkGang
   _workers.initialize_workers();
 
+  GCInitLogger::print();
+
   return JNI_OK;
 }
 

src/hotspot/share/gc/shared/gcInitLogger.cpp

@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc/shared/gcInitLogger.hpp"
+#include "logging/log.hpp"
+#include "oops/compressedOops.hpp"
+#include "runtime/globals.hpp"
+#include "runtime/vm_version.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+void GCInitLogger::print_all() {
+  print_version();
+  print_cpu();
+  print_memory();
+  print_large_pages();
+  print_numa();
+  print_compressed_oops();
+  print_heap();
+  print_workers();
+}
+
+void GCInitLogger::print() {
+  GCInitLogger init_log;
+  init_log.print_all();
+}
+
+void GCInitLogger::print_version() {
+  log_info(gc, init)("Version: %s (%s)",
+                     VM_Version::vm_release(),
+                     VM_Version::jdk_debug_level());
+}
+
+void GCInitLogger::print_cpu() {
+  log_info(gc, init)("CPUs: %u total, %u available",
+                     os::processor_count(),
+                     os::initial_active_processor_count());
+}
+
+void GCInitLogger::print_memory() {
+  julong memory = os::physical_memory();
+  log_info(gc, init)("Memory: " JULONG_FORMAT "%s",
+                     byte_size_in_proper_unit(memory), proper_unit_for_byte_size(memory));
+}
+
+void GCInitLogger::print_large_pages() {
+  log_info(gc, init)("Large Page Support: %s", large_pages_support());
+}
+
+void GCInitLogger::print_numa() {
+  if (UseNUMA) {
+    log_info(gc, init)("NUMA Support: Enabled");
+    log_info(gc, init)("NUMA Nodes: " SIZE_FORMAT, os::numa_get_groups_num());
+  } else {
+    log_info(gc, init)("NUMA Support: Disabled");
+  }
+}
+
+void GCInitLogger::print_compressed_oops() {
+  if (UseCompressedOops) {
+    log_info(gc, init)("Compressed Oops: Enabled (%s)",
+                       CompressedOops::mode_to_string(CompressedOops::mode()));
+  } else {
+    log_info(gc, init)("Compressed Oops: Disabled");
+  }
+}
+
+void GCInitLogger::print_heap() {
+  log_info(gc, init)("Heap Min Capacity: " SIZE_FORMAT "%s",
+                     byte_size_in_exact_unit(MinHeapSize), exact_unit_for_byte_size(MinHeapSize));
+  log_info(gc, init)("Heap Initial Capacity: " SIZE_FORMAT "%s",
+                     byte_size_in_exact_unit(InitialHeapSize), exact_unit_for_byte_size(InitialHeapSize));
+  log_info(gc, init)("Heap Max Capacity: " SIZE_FORMAT "%s",
+                     byte_size_in_exact_unit(MaxHeapSize), exact_unit_for_byte_size(MaxHeapSize));
+
+  log_info(gc, init)("Pre-touch: %s", AlwaysPreTouch ? "Enabled" : "Disabled");
+}
+
+void GCInitLogger::print_workers() {
+  if (ParallelGCThreads > 0) {
+    log_info(gc, init)("Parallel Workers: %u", ParallelGCThreads);
+  }
+  if (ConcGCThreads > 0) {
+    log_info(gc, init)("Concurrent Workers: %u", ConcGCThreads);
+  }
+}
+
+const char* GCInitLogger::large_pages_support() {
+  if (UseLargePages) {
+#ifdef LINUX
+    if (UseTransparentHugePages) {
+      return "Enabled (Transparent)";
+    } else {
+      return "Enabled (Explicit)";
+    }
+#else
+    return "Enabled";
+#endif
+  } else {
+    return "Disabled";
+  }
+}

src/hotspot/share/gc/shared/gcInitLogger.hpp

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_GC_SHARED_GCINITLOGGER_HPP
+#define SHARE_GC_SHARED_GCINITLOGGER_HPP
+
+#include "memory/allocation.hpp"
+
+class GCInitLogger : public StackObj {
+ protected:
+  const char* large_pages_support();
+  virtual void print_version();
+  virtual void print_cpu();
+  virtual void print_memory();
+  virtual void print_large_pages();
+  virtual void print_numa();
+  virtual void print_compressed_oops();
+  virtual void print_heap();
+  virtual void print_workers();
+ public:
+  void print_all();
+  static void print();
+};
+
+#endif //SHARE_GC_SHARED_GCINITLOGGER_HPP

src/hotspot/share/gc/shared/genCollectedHeap.cpp

@@ -47,6 +47,7 @@
 #include "gc/shared/genCollectedHeap.hpp"
 #include "gc/shared/genOopClosures.inline.hpp"
 #include "gc/shared/generationSpec.hpp"
+#include "gc/shared/gcInitLogger.hpp"
 #include "gc/shared/locationPrinter.inline.hpp"
 #include "gc/shared/oopStorageParState.inline.hpp"
 #include "gc/shared/scavengableNMethods.hpp"
@@ -130,6 +131,8 @@ jint GenCollectedHeap::initialize() {
   _old_gen = _old_gen_spec->init(old_rs, rem_set());
   clear_incremental_collection_failed();
 
+  GCInitLogger::print();
+
   return JNI_OK;
 }
 

src/hotspot/share/memory/universe.cpp

@@ -719,13 +719,9 @@ jint universe_init() {
 jint Universe::initialize_heap() {
   assert(_collectedHeap == NULL, "Heap already created");
   _collectedHeap = GCConfig::arguments()->create_heap();
-  jint status = _collectedHeap->initialize();
 
-  if (status == JNI_OK) {
-    log_info(gc)("Using %s", _collectedHeap->name());
-  }
-
-  return status;
+  log_info(gc)("Using %s", _collectedHeap->name());
+  return _collectedHeap->initialize();
 }
 
 void Universe::initialize_tlab() {