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8005204: Code Cache Reduction: command line options implementation

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Adding more detailed output on CodeCache usage

Reviewed-by: kvn, vladidan
This commit is contained in:
Alexander Harlap 2013-01-14 13:52:08 -05:00 • committed by Vladimir Danushevsky
parent 5613847626
commit 95cbed6639
6 changed files with 70 additions and 19 deletions
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47
hotspot/src/share/vm/code/codeCache.cpp
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@ -30,6 +30,7 @@
#include "code/icBuffer.hpp"
#include "code/nmethod.hpp"
#include "code/pcDesc.hpp"
#include "compiler/compileBroker.hpp"
#include "gc_implementation/shared/markSweep.hpp"
#include "memory/allocation.inline.hpp"
#include "memory/gcLocker.hpp"
@ -39,6 +40,7 @@
#include "oops/objArrayOop.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/handles.inline.hpp"
#include "runtime/arguments.hpp"
#include "runtime/icache.hpp"
#include "runtime/java.hpp"
#include "runtime/mutexLocker.hpp"
@ -168,6 +170,8 @@ nmethod* CodeCache::next_nmethod (CodeBlob* cb) {
return (nmethod*)cb;
}
static size_t maxCodeCacheUsed = 0;
CodeBlob* CodeCache::allocate(int size) {
// Do not seize the CodeCache lock here--if the caller has not
// already done so, we are going to lose bigtime, since the code
@ -192,6 +196,8 @@ CodeBlob* CodeCache::allocate(int size) {
(address)_heap->end() - (address)_heap->begin());
}
}
maxCodeCacheUsed = MAX2(maxCodeCacheUsed, ((address)_heap->high_boundary() -
(address)_heap->low_boundary()) - unallocated_capacity());
verify_if_often();
print_trace("allocation", cb, size);
return cb;
@ -928,7 +934,14 @@ void CodeCache::print_internals() {
FREE_C_HEAP_ARRAY(int, buckets, mtCode);
}
#endif // !PRODUCT
void CodeCache::print() {
print_summary(tty);
#ifndef PRODUCT
if (!Verbose) return;
CodeBlob_sizes live;
CodeBlob_sizes dead;
@ -953,7 +966,7 @@ void CodeCache::print() {
}
if (Verbose) {
if (WizardMode) {
// print the oop_map usage
int code_size = 0;
int number_of_blobs = 0;
@ -977,20 +990,30 @@ void CodeCache::print() {
tty->print_cr(" map size = %d", map_size);
}
#endif // !PRODUCT
}
#endif // PRODUCT
void CodeCache::print_summary(outputStream* st, bool detailed) {
size_t total = (_heap->high_boundary() - _heap->low_boundary());
st->print_cr("CodeCache: size=" SIZE_FORMAT "Kb used=" SIZE_FORMAT
"Kb max_used=" SIZE_FORMAT "Kb free=" SIZE_FORMAT
"Kb max_free_chunk=" SIZE_FORMAT "Kb",
total/K, (total - unallocated_capacity())/K,
maxCodeCacheUsed/K, unallocated_capacity()/K, largest_free_block()/K);
void CodeCache::print_bounds(outputStream* st) {
st->print_cr("Code Cache [" INTPTR_FORMAT ", " INTPTR_FORMAT ", " INTPTR_FORMAT ")",
_heap->low_boundary(),
_heap->high(),
_heap->high_boundary());
st->print_cr(" total_blobs=" UINT32_FORMAT " nmethods=" UINT32_FORMAT
" adapters=" UINT32_FORMAT " free_code_cache=" SIZE_FORMAT "Kb"
" largest_free_block=" SIZE_FORMAT,
nof_blobs(), nof_nmethods(), nof_adapters(),
unallocated_capacity()/K, largest_free_block());
if (detailed) {
st->print_cr(" bounds [" INTPTR_FORMAT ", " INTPTR_FORMAT ", " INTPTR_FORMAT "]",
_heap->low_boundary(),
_heap->high(),
_heap->high_boundary());
st->print_cr(" total_blobs=" UINT32_FORMAT " nmethods=" UINT32_FORMAT
" adapters=" UINT32_FORMAT,
nof_blobs(), nof_nmethods(), nof_adapters());
st->print_cr(" compilation: %s", CompileBroker::should_compile_new_jobs() ?
"enabled" : Arguments::mode() == Arguments::_int ?
"disabled (interpreter mode)" :
"disabled (not enough contiguous free space left)");
}
}
void CodeCache::log_state(outputStream* st) {