--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/services/memReporter.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,227 @@
+/*
+ * Copyright (c) 2012, 2017, 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_VM_SERVICES_MEM_REPORTER_HPP
+#define SHARE_VM_SERVICES_MEM_REPORTER_HPP
+
+#if INCLUDE_NMT
+
+#include "oops/instanceKlass.hpp"
+#include "services/memBaseline.hpp"
+#include "services/nmtCommon.hpp"
+#include "services/mallocTracker.hpp"
+#include "services/virtualMemoryTracker.hpp"
+
+/*
+ * Base class that provides helpers
+*/
+class MemReporterBase : public StackObj {
+ private:
+ size_t _scale; // report in this scale
+ outputStream* _output; // destination
+
+ public:
+ MemReporterBase(outputStream* out = NULL, size_t scale = K)
+ : _scale(scale) {
+ _output = (out == NULL) ? tty : out;
+ }
+
+ protected:
+ inline outputStream* output() const {
+ return _output;
+ }
+ // Current reporting scale
+ inline const char* current_scale() const {
+ return NMTUtil::scale_name(_scale);
+ }
+ // Convert memory amount in bytes to current reporting scale
+ inline size_t amount_in_current_scale(size_t amount) const {
+ return NMTUtil::amount_in_scale(amount, _scale);
+ }
+
+ // Convert diff amount in bytes to current reporting scale
+ inline long diff_in_current_scale(size_t s1, size_t s2) const {
+ long amount = (long)(s1 - s2);
+ long scale = (long)_scale;
+ amount = (amount > 0) ? (amount + scale / 2) : (amount - scale / 2);
+ return amount / scale;
+ }
+
+ // Helper functions
+ // Calculate total reserved and committed amount
+ size_t reserved_total(const MallocMemory* malloc, const VirtualMemory* vm) const;
+ size_t committed_total(const MallocMemory* malloc, const VirtualMemory* vm) const;
+
+
+ // Print summary total, malloc and virtual memory
+ void print_total(size_t reserved, size_t committed) const;
+ void print_malloc(size_t amount, size_t count, MEMFLAGS flag = mtNone) const;
+ void print_virtual_memory(size_t reserved, size_t committed) const;
+
+ void print_malloc_line(size_t amount, size_t count) const;
+ void print_virtual_memory_line(size_t reserved, size_t committed) const;
+ void print_arena_line(size_t amount, size_t count) const;
+
+ void print_virtual_memory_region(const char* type, address base, size_t size) const;
+};
+
+/*
+ * The class is for generating summary tracking report.
+ */
+class MemSummaryReporter : public MemReporterBase {
+ private:
+ MallocMemorySnapshot* _malloc_snapshot;
+ VirtualMemorySnapshot* _vm_snapshot;
+ size_t _class_count;
+
+ public:
+ // This constructor is for normal reporting from a recent baseline.
+ MemSummaryReporter(MemBaseline& baseline, outputStream* output,
+ size_t scale = K) : MemReporterBase(output, scale),
+ _malloc_snapshot(baseline.malloc_memory_snapshot()),
+ _vm_snapshot(baseline.virtual_memory_snapshot()),
+ _class_count(baseline.class_count()) { }
+
+
+ // Generate summary report
+ virtual void report();
+ private:
+ // Report summary for each memory type
+ void report_summary_of_type(MEMFLAGS type, MallocMemory* malloc_memory,
+ VirtualMemory* virtual_memory);
+};
+
+/*
+ * The class is for generating detail tracking report.
+ */
+class MemDetailReporter : public MemSummaryReporter {
+ private:
+ MemBaseline& _baseline;
+
+ public:
+ MemDetailReporter(MemBaseline& baseline, outputStream* output, size_t scale = K) :
+ MemSummaryReporter(baseline, output, scale),
+ _baseline(baseline) { }
+
+ // Generate detail report.
+ // The report contains summary and detail sections.
+ virtual void report() {
+ MemSummaryReporter::report();
+ report_virtual_memory_map();
+ report_detail();
+ }
+
+ private:
+ // Report detail tracking data.
+ void report_detail();
+ // Report virtual memory map
+ void report_virtual_memory_map();
+ // Report malloc allocation sites
+ void report_malloc_sites();
+ // Report virtual memory reservation sites
+ void report_virtual_memory_allocation_sites();
+
+ // Report a virtual memory region
+ void report_virtual_memory_region(const ReservedMemoryRegion* rgn);
+};
+
+/*
+ * The class is for generating summary comparison report.
+ * It compares current memory baseline against an early baseline.
+ */
+class MemSummaryDiffReporter : public MemReporterBase {
+ protected:
+ MemBaseline& _early_baseline;
+ MemBaseline& _current_baseline;
+
+ public:
+ MemSummaryDiffReporter(MemBaseline& early_baseline, MemBaseline& current_baseline,
+ outputStream* output, size_t scale = K) : MemReporterBase(output, scale),
+ _early_baseline(early_baseline), _current_baseline(current_baseline) {
+ assert(early_baseline.baseline_type() != MemBaseline::Not_baselined, "Not baselined");
+ assert(current_baseline.baseline_type() != MemBaseline::Not_baselined, "Not baselined");
+ }
+
+ // Generate summary comparison report
+ virtual void report_diff();
+
+ private:
+ // report the comparison of each memory type
+ void diff_summary_of_type(MEMFLAGS type,
+ const MallocMemory* early_malloc, const VirtualMemory* early_vm,
+ const MallocMemory* current_malloc, const VirtualMemory* current_vm) const;
+
+ protected:
+ void print_malloc_diff(size_t current_amount, size_t current_count,
+ size_t early_amount, size_t early_count, MEMFLAGS flags) const;
+ void print_virtual_memory_diff(size_t current_reserved, size_t current_committed,
+ size_t early_reserved, size_t early_committed) const;
+ void print_arena_diff(size_t current_amount, size_t current_count,
+ size_t early_amount, size_t early_count) const;
+};
+
+/*
+ * The class is for generating detail comparison report.
+ * It compares current memory baseline against an early baseline,
+ * both baselines have to be detail baseline.
+ */
+class MemDetailDiffReporter : public MemSummaryDiffReporter {
+ public:
+ MemDetailDiffReporter(MemBaseline& early_baseline, MemBaseline& current_baseline,
+ outputStream* output, size_t scale = K) :
+ MemSummaryDiffReporter(early_baseline, current_baseline, output, scale) { }
+
+ // Generate detail comparison report
+ virtual void report_diff();
+
+ // Malloc allocation site comparison
+ void diff_malloc_sites() const;
+ // Virutal memory reservation site comparison
+ void diff_virtual_memory_sites() const;
+
+ // New malloc allocation site in recent baseline
+ void new_malloc_site (const MallocSite* site) const;
+ // The malloc allocation site is not in recent baseline
+ void old_malloc_site (const MallocSite* site) const;
+ // Compare malloc allocation site, it is in both baselines
+ void diff_malloc_site(const MallocSite* early, const MallocSite* current) const;
+
+ // New virtual memory allocation site in recent baseline
+ void new_virtual_memory_site (const VirtualMemoryAllocationSite* callsite) const;
+ // The virtual memory allocation site is not in recent baseline
+ void old_virtual_memory_site (const VirtualMemoryAllocationSite* callsite) const;
+ // Compare virtual memory allocation site, it is in both baseline
+ void diff_virtual_memory_site(const VirtualMemoryAllocationSite* early,
+ const VirtualMemoryAllocationSite* current) const;
+
+ void diff_malloc_site(const NativeCallStack* stack, size_t current_size,
+ size_t currrent_count, size_t early_size, size_t early_count, MEMFLAGS flags) const;
+ void diff_virtual_memory_site(const NativeCallStack* stack, size_t current_reserved,
+ size_t current_committed, size_t early_reserved, size_t early_committed) const;
+};
+
+#endif // INCLUDE_NMT
+
+#endif
+