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8155245: Add logging when MMU target is violated

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Reviewed-by: ehelin, mgerdin
This commit is contained in:
Stefan Johansson 2016-04-29 08:39:22 +02:00
parent 59e339e6ec
commit 4956880699
3 changed files with 7 additions and 0 deletions
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5
hotspot/src/share/vm/gc/g1/g1MMUTracker.cpp
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@ -25,6 +25,7 @@
#include "precompiled.hpp"
#include "gc/g1/g1MMUTracker.hpp"
#include "gc/shared/gcTrace.hpp"
#include "logging/log.hpp"
#include "runtime/mutexLocker.hpp"
#include "utilities/ostream.hpp"
@ -107,6 +108,10 @@ void G1MMUTrackerQueue::add_pause(double start, double end) {
// Current entry needs to be added before calculating the value
double slice_time = calculate_gc_time(end);
G1MMUTracer::report_mmu(_time_slice, slice_time, _max_gc_time);
if (slice_time >= _max_gc_time) {
log_info(gc, mmu)("MMU target violated: %.1lfms (%.1lfms/%.1lfms)", slice_time * 1000.0, _max_gc_time * 1000.0, _time_slice * 1000);
}
}
// basically the _internal call does not remove expired entries

1
hotspot/src/share/vm/logging/logPrefix.hpp
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@ -64,6 +64,7 @@ DEBUG_ONLY(size_t Test_log_prefix_prefixer(char* buf, size_t len);)
LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, liveness)) \
LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, marking)) \
LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, metaspace)) \
LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, mmu)) \
LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, phases)) \
LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, phases, start)) \
LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, phases, task)) \

1
hotspot/src/share/vm/logging/logTag.hpp
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@ -67,6 +67,7 @@
LOG_TAG(logging) \
LOG_TAG(marking) \
LOG_TAG(metaspace) \
LOG_TAG(mmu) \
LOG_TAG(modules) \
LOG_TAG(monitorinflation) \
LOG_TAG(monitormismatch) \