truffle: src/share/vm/runtime/perfData.cpp comparison

comparison src/share/vm/runtime/perfData.cpp @ 0:a61af66fc99e jdk7-b24

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author	duke
date	Sat, 01 Dec 2007 00:00:00 +0000
parents
children	c18cbe5936b8

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--1:000000000000
+:a61af66fc99e
+/*
+* Copyright 2001-2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+* CA 95054 USA or visit www.sun.com if you need additional information or
+* have any questions.
+*
+*/
+# include "incls/_precompiled.incl"
+# include "incls/_perfData.cpp.incl"
+PerfDataList*   PerfDataManager::_all = NULL;
+PerfDataList*   PerfDataManager::_sampled = NULL;
+PerfDataList*   PerfDataManager::_constants = NULL;
+/*
+* The jvmstat global and subsysem jvmstat counter name spaces. The top
+* level name spaces imply the interface stability level of the counter,
+* which generally follows the Java package, class, and property naming
+* conventions. The CounterNS enumeration values should be used to index
+* into this array.
+*/
+const char* PerfDataManager::_name_spaces[] = {
+// top level name spaces
+"java",                   // stable and supported name space
+"com.sun",                // unstable but supported name space
+"sun",                    // unstable and unsupported name space
+// subsystem name spaces
+"java.gc",                // Garbage Collection name spaces
+"com.sun.gc",
+"sun.gc",
+"java.ci",                // Compiler name spaces
+"com.sun.ci",
+"sun.ci",
+"java.cls",               // Class Loader name spaces
+"com.sun.cls",
+"sun.cls",
+"java.rt",                // Runtime name spaces
+"com.sun.rt",
+"sun.rt",
+"java.os",                // Operating System name spaces
+"com.sun.os",
+"sun.os",
+"java.threads",           // Threads System name spaces
+"com.sun.threads",
+"sun.threads",
+"java.property",          // Java Property name spaces
+"com.sun.property",
+"sun.property",
+"",
+};
+PerfData::PerfData(CounterNS ns, const char* name, Units u, Variability v)
+: _name(NULL), _u(u), _v(v), _valuep(NULL),
+_on_c_heap(false) {
+const char* prefix = PerfDataManager::ns_to_string(ns);
+_name = NEW_C_HEAP_ARRAY(char, strlen(name) + strlen(prefix) + 2);
+assert(_name != NULL && strlen(name) != 0, "invalid name");
+if (ns == NULL_NS) {
+// No prefix is added to counters with the NULL_NS namespace.
+strcpy(_name, name);
+// set the F_Supported flag based on the counter name prefix.
+if (PerfDataManager::is_stable_supported(_name) ||
+PerfDataManager::is_unstable_supported(_name)) {
+_flags = F_Supported;
+}
+else {
+_flags = F_None;
+}
+}
+else {
+sprintf(_name, "%s.%s", prefix, name);
+// set the F_Supported flag based on the given namespace.
+if (PerfDataManager::is_stable_supported(ns) ||
+PerfDataManager::is_unstable_supported(ns)) {
+_flags = F_Supported;
+}
+else {
+_flags = F_None;
+}
+}
+}
+PerfData::~PerfData() {
+if (_name != NULL) {
+FREE_C_HEAP_ARRAY(char, _name);
+}
+if (is_on_c_heap()) {
+FREE_C_HEAP_ARRAY(PerfDataEntry, _pdep);
+}
+}
+void PerfData::create_entry(BasicType dtype, size_t dsize, size_t vlen) {
+size_t dlen = vlen==0 ? 1 : vlen;
+size_t namelen = strlen(name()) + 1;  // include null terminator
+size_t size = sizeof(PerfDataEntry) + namelen;
+size_t pad_length = ((size % dsize) == 0) ? 0 : dsize - (size % dsize);
+size += pad_length;
+size_t data_start = size;
+size += (dsize * dlen);
+// align size to assure allocation in units of 8 bytes
+int align = sizeof(jlong) - 1;
+size = ((size + align) & ~align);
+char* psmp = PerfMemory::alloc(size);
+if (psmp == NULL) {
+// out of PerfMemory memory resources. allocate on the C heap
+// to avoid vm termination.
+psmp = NEW_C_HEAP_ARRAY(char, size);
+_on_c_heap = true;
+}
+// compute the addresses for the name and data
+char* cname = psmp + sizeof(PerfDataEntry);
+// data is in the last dsize*dlen bytes of the entry
+void* valuep = (void*) (psmp + data_start);
+assert(is_on_c_heap() || PerfMemory::contains(cname), "just checking");
+assert(is_on_c_heap() || PerfMemory::contains((char*)valuep), "just checking");
+// copy the name, including null terminator, into PerfData memory
+strcpy(cname, name());
+// set the header values in PerfData memory
+PerfDataEntry* pdep = (PerfDataEntry*)psmp;
+pdep->entry_length = (jint)size;
+pdep->name_offset = (jint) ((uintptr_t) cname - (uintptr_t) psmp);
+pdep->vector_length = (jint)vlen;
+pdep->data_type = (jbyte) type2char(dtype);
+pdep->data_units = units();
+pdep->data_variability = variability();
+pdep->flags = (jbyte)flags();
+pdep->data_offset = (jint) data_start;
+if (PerfTraceDataCreation) {
+tty->print("name = %s, dtype = %d, variability = %d,"
+" units = %d, dsize = %d, vlen = %d,"
+" pad_length = %d, size = %d, on_c_heap = %s,"
+" address = " INTPTR_FORMAT ","
+" data address = " INTPTR_FORMAT "\n",
+cname, dtype, variability(),
+units(), dsize, vlen,
+pad_length, size, is_on_c_heap() ? "TRUE":"FALSE",
+psmp, valuep);
+}
+// record the start of the entry and the location of the data field.
+_pdep = pdep;
+_valuep = valuep;
+// mark the PerfData memory region as having been updated.
+PerfMemory::mark_updated();
+}
+PerfLong::PerfLong(CounterNS ns, const char* namep, Units u, Variability v)
+: PerfData(ns, namep, u, v) {
+create_entry(T_LONG, sizeof(jlong));
+}
+int PerfLong::format(char* buffer, int length) {
+return jio_snprintf(buffer, length,"%lld", *(jlong*)_valuep);
+}
+PerfLongVariant::PerfLongVariant(CounterNS ns, const char* namep, Units u,
+Variability v, jlong* sampled)
+: PerfLong(ns, namep, u, v),
+_sampled(sampled), _sample_helper(NULL) {
+sample();
+}
+PerfLongVariant::PerfLongVariant(CounterNS ns, const char* namep, Units u,
+Variability v, PerfLongSampleHelper* helper)
+: PerfLong(ns, namep, u, v),
+_sampled(NULL), _sample_helper(helper) {
+sample();
+}
+void PerfLongVariant::sample() {
+assert(_sample_helper != NULL || _sampled != NULL, "unexpected state");
+if (_sample_helper != NULL) {
+*(jlong*)_valuep = _sample_helper->take_sample();
+}
+else if (_sampled != NULL) {
+*(jlong*)_valuep = *_sampled;
+}
+}
+PerfByteArray::PerfByteArray(CounterNS ns, const char* namep, Units u,
+Variability v, jint length)
+: PerfData(ns, namep, u, v), _length(length) {
+create_entry(T_BYTE, sizeof(jbyte), (size_t)_length);
+}
+void PerfString::set_string(const char* s2) {
+// copy n bytes of the string, assuring the null string is
+// copied if s2 == NULL.
+strncpy((char *)_valuep, s2 == NULL ? "" : s2, _length);
+// assure the string is null terminated when strlen(s2) >= _length
+((char*)_valuep)[_length-1] = '\0';
+}
+int PerfString::format(char* buffer, int length) {
+return jio_snprintf(buffer, length, "%s", (char*)_valuep);
+}
+PerfStringConstant::PerfStringConstant(CounterNS ns, const char* namep,
+const char* initial_value)
+: PerfString(ns, namep, V_Constant,
+initial_value == NULL ? 1 :
+MIN2((jint)(strlen((char*)initial_value)+1),
+(jint)(PerfMaxStringConstLength+1)),
+initial_value) {
+if (PrintMiscellaneous && Verbose) {
+if (is_valid() && initial_value != NULL &&
+((jint)strlen(initial_value) > (jint)PerfMaxStringConstLength)) {
+warning("Truncating PerfStringConstant: name = %s,"
+" length = " INT32_FORMAT ","
+" PerfMaxStringConstLength = " INT32_FORMAT "\n",
+namep,
+(jint)strlen(initial_value),
+(jint)PerfMaxStringConstLength);
+}
+}
+}
+void PerfDataManager::destroy() {
+if (_all == NULL)
+// destroy already called, or initialization never happened
+return;
+for (int index = 0; index < _all->length(); index++) {
+PerfData* p = _all->at(index);
+delete p;
+}
+delete(_all);
+delete(_sampled);
+delete(_constants);
+_all = NULL;
+_sampled = NULL;
+_constants = NULL;
+}
+void PerfDataManager::add_item(PerfData* p, bool sampled) {
+MutexLocker ml(PerfDataManager_lock);
+if (_all == NULL) {
+_all = new PerfDataList(100);
+}
+assert(!_all->contains(p->name()), "duplicate name added");
+// add to the list of all perf data items
+_all->append(p);
+if (p->variability() == PerfData::V_Constant) {
+if (_constants == NULL) {
+_constants = new PerfDataList(25);
+}
+_constants->append(p);
+return;
+}
+if (sampled) {
+if (_sampled == NULL) {
+_sampled = new PerfDataList(25);
+}
+_sampled->append(p);
+}
+}
+PerfDataList* PerfDataManager::all() {
+MutexLocker ml(PerfDataManager_lock);
+if (_all == NULL)
+return NULL;
+PerfDataList* clone = _all->clone();
+return clone;
+}
+PerfDataList* PerfDataManager::sampled() {
+MutexLocker ml(PerfDataManager_lock);
+if (_sampled == NULL)
+return NULL;
+PerfDataList* clone = _sampled->clone();
+return clone;
+}
+PerfDataList* PerfDataManager::constants() {
+MutexLocker ml(PerfDataManager_lock);
+if (_constants == NULL)
+return NULL;
+PerfDataList* clone = _constants->clone();
+return clone;
+}
+char* PerfDataManager::counter_name(const char* ns, const char* name) {
+assert(ns != NULL, "ns string required");
+assert(name != NULL, "name string required");
+size_t len = strlen(ns) + strlen(name) + 2;
+char* result = NEW_RESOURCE_ARRAY(char, len);
+sprintf(result, "%s.%s", ns, name);
+return result;
+}
+char* PerfDataManager::name_space(const char* ns, const char* sub,
+int instance) {
+char intbuf[40];
+jio_snprintf(intbuf, 40, UINT32_FORMAT, instance);
+return name_space(ns, name_space(sub, intbuf));
+}
+char *PerfDataManager::name_space(const char* ns, int instance) {
+char intbuf[40];
+jio_snprintf(intbuf, 40, UINT32_FORMAT, instance);
+return name_space(ns, intbuf);
+}
+PerfStringConstant* PerfDataManager::create_string_constant(CounterNS ns,
+const char* name,
+const char* s,
+TRAPS) {
+PerfStringConstant* p = new PerfStringConstant(ns, name, s);
+if (!p->is_valid()) {
+// allocation of native resources failed.
+delete p;
+THROW_0(vmSymbols::java_lang_OutOfMemoryError());
+}
+add_item(p, false);
+return p;
+}
+PerfLongConstant* PerfDataManager::create_long_constant(CounterNS ns,
+const char* name,
+PerfData::Units u,
+jlong val, TRAPS) {
+PerfLongConstant* p = new PerfLongConstant(ns, name, u, val);
+if (!p->is_valid()) {
+// allocation of native resources failed.
+delete p;
+THROW_0(vmSymbols::java_lang_OutOfMemoryError());
+}
+add_item(p, false);
+return p;
+}
+PerfStringVariable* PerfDataManager::create_string_variable(CounterNS ns,
+const char* name,
+jint max_length,
+const char* s,
+TRAPS) {
+if (max_length == 0 && s != NULL) max_length = (jint)strlen(s);
+assert(max_length != 0, "PerfStringVariable with length 0");
+PerfStringVariable* p = new PerfStringVariable(ns, name, max_length, s);
+if (!p->is_valid()) {
+// allocation of native resources failed.
+delete p;
+THROW_0(vmSymbols::java_lang_OutOfMemoryError());
+}
+add_item(p, false);
+return p;
+}
+PerfLongVariable* PerfDataManager::create_long_variable(CounterNS ns,
+const char* name,
+PerfData::Units u,
+jlong ival, TRAPS) {
+PerfLongVariable* p = new PerfLongVariable(ns, name, u, ival);
+if (!p->is_valid()) {
+// allocation of native resources failed.
+delete p;
+THROW_0(vmSymbols::java_lang_OutOfMemoryError());
+}
+add_item(p, false);
+return p;
+}
+PerfLongVariable* PerfDataManager::create_long_variable(CounterNS ns,
+const char* name,
+PerfData::Units u,
+jlong* sp, TRAPS) {
+// Sampled counters not supported if UsePerfData is false
+if (!UsePerfData) return NULL;
+PerfLongVariable* p = new PerfLongVariable(ns, name, u, sp);
+if (!p->is_valid()) {
+// allocation of native resources failed.
+delete p;
+THROW_0(vmSymbols::java_lang_OutOfMemoryError());
+}
+add_item(p, true);
+return p;
+}
+PerfLongVariable* PerfDataManager::create_long_variable(CounterNS ns,
+const char* name,
+PerfData::Units u,
+PerfSampleHelper* sh,
+TRAPS) {
+// Sampled counters not supported if UsePerfData is false
+if (!UsePerfData) return NULL;
+PerfLongVariable* p = new PerfLongVariable(ns, name, u, sh);
+if (!p->is_valid()) {
+// allocation of native resources failed.
+delete p;
+THROW_0(vmSymbols::java_lang_OutOfMemoryError());
+}
+add_item(p, true);
+return p;
+}
+PerfLongCounter* PerfDataManager::create_long_counter(CounterNS ns,
+const char* name,
+PerfData::Units u,
+jlong ival, TRAPS) {
+PerfLongCounter* p = new PerfLongCounter(ns, name, u, ival);
+if (!p->is_valid()) {
+// allocation of native resources failed.
+delete p;
+THROW_0(vmSymbols::java_lang_OutOfMemoryError());
+}
+add_item(p, false);
+return p;
+}
+PerfLongCounter* PerfDataManager::create_long_counter(CounterNS ns,
+const char* name,
+PerfData::Units u,
+jlong* sp, TRAPS) {
+// Sampled counters not supported if UsePerfData is false
+if (!UsePerfData) return NULL;
+PerfLongCounter* p = new PerfLongCounter(ns, name, u, sp);
+if (!p->is_valid()) {
+// allocation of native resources failed.
+delete p;
+THROW_0(vmSymbols::java_lang_OutOfMemoryError());
+}
+add_item(p, true);
+return p;
+}
+PerfLongCounter* PerfDataManager::create_long_counter(CounterNS ns,
+const char* name,
+PerfData::Units u,
+PerfSampleHelper* sh,
+TRAPS) {
+// Sampled counters not supported if UsePerfData is false
+if (!UsePerfData) return NULL;
+PerfLongCounter* p = new PerfLongCounter(ns, name, u, sh);
+if (!p->is_valid()) {
+// allocation of native resources failed.
+delete p;
+THROW_0(vmSymbols::java_lang_OutOfMemoryError());
+}
+add_item(p, true);
+return p;
+}
+PerfDataList::PerfDataList(int length) {
+_set = new(ResourceObj::C_HEAP) PerfDataArray(length, true);
+}
+PerfDataList::PerfDataList(PerfDataList* p) {
+_set = new(ResourceObj::C_HEAP) PerfDataArray(p->length(), true);
+_set->appendAll(p->get_impl());
+}
+PerfDataList::~PerfDataList() {
+delete _set;
+}
+bool PerfDataList::by_name(void* name, PerfData* pd) {
+if (pd == NULL)
+return false;
+return strcmp((const char*)name, pd->name()) == 0;
+}
+PerfData* PerfDataList::find_by_name(const char* name) {
+int i = _set->find((void*)name, PerfDataList::by_name);
+if (i >= 0 && i <= _set->length())
+return _set->at(i);
+else
+return NULL;
+}
+PerfDataList* PerfDataList::clone() {
+PerfDataList* copy = new PerfDataList(this);
+assert(copy != NULL, "just checking");
+return copy;
+}

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comparison src/share/vm/runtime/perfData.cpp @ 0:a61af66fc99e jdk7-b24