1 /*
   2  * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 #include "precompiled.hpp"
  25 #include "gc/z/zStat.hpp"
  26 #include "gc/z/zTracer.hpp"
  27 #include "gc/shared/gcId.hpp"
  28 #include "gc/shared/gcLocker.hpp"
  29 #include "jfr/jfrEvents.hpp"
  30 #include "runtime/safepointVerifiers.hpp"
  31 
  32 ZTracer* ZTracer::_tracer = NULL;
  33 
  34 ZTracer::ZTracer() :
  35     GCTracer(Z) {}
  36 
  37 void ZTracer::initialize() {
  38   _tracer = new (ResourceObj::C_HEAP, mtGC) ZTracer();
  39 }
  40 
  41 void ZTracer::send_stat_counter(uint32_t counter_id, uint64_t increment, uint64_t value) {
  42   NoSafepointVerifier nsv(true, !SafepointSynchronize::is_at_safepoint());
  43 
  44   EventZStatisticsCounter e;
  45   if (e.should_commit()) {
  46     e.set_id(counter_id);
  47     e.set_increment(increment);
  48     e.set_value(value);
  49     e.commit();
  50   }
  51 }
  52 
  53 void ZTracer::send_stat_sampler(uint32_t sampler_id, uint64_t value) {
  54   NoSafepointVerifier nsv(true, !SafepointSynchronize::is_at_safepoint());
  55 
  56   EventZStatisticsSampler e;
  57   if (e.should_commit()) {
  58     e.set_id(sampler_id);
  59     e.set_value(value);
  60     e.commit();
  61   }
  62 }
  63 
  64 void ZTracer::send_thread_phase(const char* name, const Ticks& start, const Ticks& end) {
  65   NoSafepointVerifier nsv(true, !SafepointSynchronize::is_at_safepoint());
  66 
  67   EventZThreadPhase e(UNTIMED);
  68   if (e.should_commit()) {
  69     e.set_gcId(GCId::current_or_undefined());
  70     e.set_name(name);
  71     e.set_starttime(start);
  72     e.set_endtime(end);
  73     e.commit();
  74   }
  75 }
  76 
  77 void ZTracer::send_page_alloc(size_t size, size_t used, size_t free, size_t cache, bool nonblocking, bool noreserve) {
  78   NoSafepointVerifier nsv(true, !SafepointSynchronize::is_at_safepoint());
  79 
  80   EventZPageAllocation e;
  81   if (e.should_commit()) {
  82     e.set_pageSize(size);
  83     e.set_usedAfter(used);
  84     e.set_freeAfter(free);
  85     e.set_inCacheAfter(cache);
  86     e.set_nonBlocking(nonblocking);
  87     e.set_noReserve(noreserve);
  88     e.commit();
  89   }
  90 }
  91 
  92 void ZTracer::report_stat_counter(const ZStatCounter& counter, uint64_t increment, uint64_t value) {
  93   send_stat_counter(counter.id(), increment, value);
  94 }
  95 
  96 void ZTracer::report_stat_sampler(const ZStatSampler& sampler, uint64_t value) {
  97   send_stat_sampler(sampler.id(), value);
  98 }
  99 
 100 void ZTracer::report_thread_phase(const ZStatPhase& phase, const Ticks& start, const Ticks& end) {
 101   send_thread_phase(phase.name(), start, end);
 102 }
 103 
 104 void ZTracer::report_thread_phase(const char* name, const Ticks& start, const Ticks& end) {
 105   send_thread_phase(name, start, end);
 106 }
 107 
 108 void ZTracer::report_page_alloc(size_t size, size_t used, size_t free, size_t cache, ZAllocationFlags flags) {
 109   send_page_alloc(size, used, free, cache, flags.non_blocking(), flags.no_reserve());
 110 }