Mercurial > jdk8-mips64-public > hotspot / file revision

 /*

  * Copyright (c) 2012, 2018, 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.

  *

  */

 #include "precompiled.hpp"

 #include "memory/allocation.inline.hpp"

 #include "memory/resourceArea.hpp"

 #include "runtime/os.hpp"

 #include "runtime/os_perf.hpp"

 #include "vm_version_ext_x86.hpp"

 #ifdef __APPLE__

   #import <libproc.h>

   #include <sys/time.h>

   #include <sys/sysctl.h>

   #include <mach/mach.h>

   #include <mach/task_info.h>

   #include <sys/socket.h>

   #include <net/if.h>

   #include <net/if_dl.h>

   #include <net/route.h>

 #endif

 static const double NANOS_PER_SEC = 1000000000.0;

 class CPUPerformanceInterface::CPUPerformance : public CHeapObj<mtInternal> {

    friend class CPUPerformanceInterface;

  private:

   long _total_cpu_nanos;

   long _total_csr_nanos;

   long _jvm_user_nanos;

   long _jvm_system_nanos;

   long _jvm_context_switches;

   long _used_ticks;

   long _total_ticks;

   int  _active_processor_count;

   bool now_in_nanos(long* resultp) {

     timeval current_time;

     if (gettimeofday(&current_time, NULL) != 0) {

       // Error getting current time

       return false;

     }

     *resultp = (long)(current_time.tv_sec * NANOS_PER_SEC + 1000L * current_time.tv_usec);

     return true;

   }

   double normalize(double value) {

     return MIN2<double>(MAX2<double>(value, 0.0), 1.0);

   }

   int cpu_load(int which_logical_cpu, double* cpu_load);

   int context_switch_rate(double* rate);

   int cpu_load_total_process(double* cpu_load);

   int cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad);

   CPUPerformance(const CPUPerformance& rhs); // no impl

   CPUPerformance& operator=(const CPUPerformance& rhs); // no impl

  public:

   CPUPerformance();

   bool initialize();

   ~CPUPerformance();

 };

 CPUPerformanceInterface::CPUPerformance::CPUPerformance() {

   _total_cpu_nanos= 0;

   _total_csr_nanos= 0;

   _jvm_context_switches = 0;

   _jvm_user_nanos = 0;

   _jvm_system_nanos = 0;

   _used_ticks = 0;

   _total_ticks = 0;

   _active_processor_count = 0;

 }

 bool CPUPerformanceInterface::CPUPerformance::initialize() {

   return true;

 }

 CPUPerformanceInterface::CPUPerformance::~CPUPerformance() {

 }

 int CPUPerformanceInterface::CPUPerformance::cpu_load(int which_logical_cpu, double* cpu_load) {

   return FUNCTIONALITY_NOT_IMPLEMENTED;

 }

 int CPUPerformanceInterface::CPUPerformance::cpu_load_total_process(double* cpu_load) {

 #ifdef __APPLE__

   host_name_port_t host = mach_host_self();

   host_flavor_t flavor = HOST_CPU_LOAD_INFO;

   mach_msg_type_number_t host_info_count = HOST_CPU_LOAD_INFO_COUNT;

   host_cpu_load_info_data_t cpu_load_info;

   kern_return_t kr = host_statistics(host, flavor, (host_info_t)&cpu_load_info, &host_info_count);

   if (kr != KERN_SUCCESS) {

     return OS_ERR;

   }

   long used_ticks  = cpu_load_info.cpu_ticks[CPU_STATE_USER] + cpu_load_info.cpu_ticks[CPU_STATE_NICE] + cpu_load_info.cpu_ticks[CPU_STATE_SYSTEM];

   long total_ticks = used_ticks + cpu_load_info.cpu_ticks[CPU_STATE_IDLE];

   if (_used_ticks == 0 || _total_ticks == 0) {

     // First call, just set the values

     _used_ticks  = used_ticks;

     _total_ticks = total_ticks;

     return OS_ERR;

   }

   long used_delta  = used_ticks - _used_ticks;

   long total_delta = total_ticks - _total_ticks;

   _used_ticks  = used_ticks;

   _total_ticks = total_ticks;

   if (total_delta == 0) {

     // Avoid division by zero

     return OS_ERR;

   }

   *cpu_load = (double)used_delta / total_delta;

   return OS_OK;

 #else

   return FUNCTIONALITY_NOT_IMPLEMENTED;

 #endif

 }

 int CPUPerformanceInterface::CPUPerformance::cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad) {

 #ifdef __APPLE__

   int result = cpu_load_total_process(psystemTotalLoad);

   mach_port_t task = mach_task_self();

   mach_msg_type_number_t task_info_count = TASK_INFO_MAX;

   task_info_data_t task_info_data;

   kern_return_t kr = task_info(task, TASK_ABSOLUTETIME_INFO, (task_info_t)task_info_data, &task_info_count);

   if (kr != KERN_SUCCESS) {

     return OS_ERR;

   }

   task_absolutetime_info_t absolutetime_info = (task_absolutetime_info_t)task_info_data;

   int active_processor_count = os::active_processor_count();

   long jvm_user_nanos = absolutetime_info->total_user;

   long jvm_system_nanos = absolutetime_info->total_system;

   long total_cpu_nanos;

   if(!now_in_nanos(&total_cpu_nanos)) {

     return OS_ERR;

   }

   if (_total_cpu_nanos == 0 || active_processor_count != _active_processor_count) {

     // First call or change in active processor count

     result = OS_ERR;

   }

   long delta_nanos = active_processor_count * (total_cpu_nanos - _total_cpu_nanos);

   if (delta_nanos == 0) {

     // Avoid division by zero

     return OS_ERR;

   }

   *pjvmUserLoad = normalize((double)(jvm_user_nanos - _jvm_user_nanos)/delta_nanos);

   *pjvmKernelLoad = normalize((double)(jvm_system_nanos - _jvm_system_nanos)/delta_nanos);

   _active_processor_count = active_processor_count;

   _total_cpu_nanos = total_cpu_nanos;

   _jvm_user_nanos = jvm_user_nanos;

   _jvm_system_nanos = jvm_system_nanos;

   return result;

 #else

   return FUNCTIONALITY_NOT_IMPLEMENTED;

 #endif

 }

 int CPUPerformanceInterface::CPUPerformance::context_switch_rate(double* rate) {

 #ifdef __APPLE__

   mach_port_t task = mach_task_self();

   mach_msg_type_number_t task_info_count = TASK_INFO_MAX;

   task_info_data_t task_info_data;

   kern_return_t kr = task_info(task, TASK_EVENTS_INFO, (task_info_t)task_info_data, &task_info_count);

   if (kr != KERN_SUCCESS) {

     return OS_ERR;

   }

   int result = OS_OK;

   if (_total_csr_nanos == 0 || _jvm_context_switches == 0) {

     // First call just set initial values.

     result = OS_ERR;

   }

   long jvm_context_switches = ((task_events_info_t)task_info_data)->csw;

   long total_csr_nanos;

   if(!now_in_nanos(&total_csr_nanos)) {

     return OS_ERR;

   }

   double delta_in_sec = (double)(total_csr_nanos - _total_csr_nanos) / NANOS_PER_SEC;

   if (delta_in_sec == 0.0) {

     // Avoid division by zero

     return OS_ERR;

   }

   *rate = (jvm_context_switches - _jvm_context_switches) / delta_in_sec;

   _jvm_context_switches = jvm_context_switches;

   _total_csr_nanos = total_csr_nanos;

   return result;

 #else

   return FUNCTIONALITY_NOT_IMPLEMENTED;

 #endif

 }

 CPUPerformanceInterface::CPUPerformanceInterface() {

   _impl = NULL;

 }

 bool CPUPerformanceInterface::initialize() {

   _impl = new CPUPerformanceInterface::CPUPerformance();

   return _impl != NULL && _impl->initialize();

 }

 CPUPerformanceInterface::~CPUPerformanceInterface() {

   if (_impl != NULL) {

     delete _impl;

   }

 }

 int CPUPerformanceInterface::cpu_load(int which_logical_cpu, double* cpu_load) const {

   return _impl->cpu_load(which_logical_cpu, cpu_load);

 }

 int CPUPerformanceInterface::cpu_load_total_process(double* cpu_load) const {

   return _impl->cpu_load_total_process(cpu_load);

 }

 int CPUPerformanceInterface::cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad) const {

   return _impl->cpu_loads_process(pjvmUserLoad, pjvmKernelLoad, psystemTotalLoad);

 }

 int CPUPerformanceInterface::context_switch_rate(double* rate) const {

   return _impl->context_switch_rate(rate);

 }

 class SystemProcessInterface::SystemProcesses : public CHeapObj<mtInternal> {

   friend class SystemProcessInterface;

  private:

   SystemProcesses();

   bool initialize();

   SystemProcesses(const SystemProcesses& rhs); // no impl

   SystemProcesses& operator=(const SystemProcesses& rhs); // no impl

   ~SystemProcesses();

   //information about system processes

   int system_processes(SystemProcess** system_processes, int* no_of_sys_processes) const;

 };

 SystemProcessInterface::SystemProcesses::SystemProcesses() {

 }

 bool SystemProcessInterface::SystemProcesses::initialize() {

   return true;

 }

 SystemProcessInterface::SystemProcesses::~SystemProcesses() {

 }

 int SystemProcessInterface::SystemProcesses::system_processes(SystemProcess** system_processes, int* no_of_sys_processes) const {

   assert(system_processes != NULL, "system_processes pointer is NULL!");

   assert(no_of_sys_processes != NULL, "system_processes counter pointer is NULL!");

 #ifdef __APPLE__

   pid_t* pids = NULL;

   int pid_count = 0;

   ResourceMark rm;

   int try_count = 0;

   while (pids == NULL) {

     // Find out buffer size

     size_t pids_bytes = proc_listpids(PROC_ALL_PIDS, 0, NULL, 0);

     if (pids_bytes <= 0) {

       return OS_ERR;

     }

     pid_count = pids_bytes / sizeof(pid_t);

     pids = NEW_RESOURCE_ARRAY(pid_t, pid_count);

     memset(pids, 0, pids_bytes);

     pids_bytes = proc_listpids(PROC_ALL_PIDS, 0, pids, pids_bytes);

     if (pids_bytes <= 0) {

        // couldn't fit buffer, retry.

       FREE_RESOURCE_ARRAY(pid_t, pids, pid_count);

       pids = NULL;

       try_count++;

       if (try_count > 3) {

       return OS_ERR;

       }

     } else {

       pid_count = pids_bytes / sizeof(pid_t);

     }

   }

   int process_count = 0;

   SystemProcess* next = NULL;

   for (int i = 0; i < pid_count; i++) {

     pid_t pid = pids[i];

     if (pid != 0) {

       char buffer[PROC_PIDPATHINFO_MAXSIZE];

       memset(buffer, 0 , sizeof(buffer));

       if (proc_pidpath(pid, buffer, sizeof(buffer)) != -1) {

         int length = strlen(buffer);

         if (length > 0) {

           SystemProcess* current = new SystemProcess();

           char * path = NEW_C_HEAP_ARRAY(char, length + 1, mtInternal);

           strcpy(path, buffer);

           current->set_path(path);

           current->set_pid((int)pid);

           current->set_next(next);

           next = current;

           process_count++;

         }

       }

     }

   }

   *no_of_sys_processes = process_count;

   *system_processes = next;

   return OS_OK;

 #endif

   return FUNCTIONALITY_NOT_IMPLEMENTED;

 }

 int SystemProcessInterface::system_processes(SystemProcess** system_procs, int* no_of_sys_processes) const {

   return _impl->system_processes(system_procs, no_of_sys_processes);

 }

 SystemProcessInterface::SystemProcessInterface() {

   _impl = NULL;

 }

 bool SystemProcessInterface::initialize() {

   _impl = new SystemProcessInterface::SystemProcesses();

   return _impl != NULL && _impl->initialize();

 }

 SystemProcessInterface::~SystemProcessInterface() {

   if (_impl != NULL) {

     delete _impl;

  }

 }

 CPUInformationInterface::CPUInformationInterface() {

   _cpu_info = NULL;

 }

 bool CPUInformationInterface::initialize() {

   _cpu_info = new CPUInformation();

   if (NULL == _cpu_info) {

     return false;

   }

   _cpu_info->set_number_of_hardware_threads(VM_Version_Ext::number_of_threads());

   _cpu_info->set_number_of_cores(VM_Version_Ext::number_of_cores());

   _cpu_info->set_number_of_sockets(VM_Version_Ext::number_of_sockets());

   _cpu_info->set_cpu_name(VM_Version_Ext::cpu_name());

   _cpu_info->set_cpu_description(VM_Version_Ext::cpu_description());

   return true;

 }

 CPUInformationInterface::~CPUInformationInterface() {

   if (_cpu_info != NULL) {

     if (_cpu_info->cpu_name() != NULL) {

       const char* cpu_name = _cpu_info->cpu_name();

       FREE_C_HEAP_ARRAY(char, cpu_name, mtInternal);

       _cpu_info->set_cpu_name(NULL);

     }

     if (_cpu_info->cpu_description() != NULL) {

       const char* cpu_desc = _cpu_info->cpu_description();

       FREE_C_HEAP_ARRAY(char, cpu_desc, mtInternal);

       _cpu_info->set_cpu_description(NULL);

     }

     delete _cpu_info;

   }

 }

 int CPUInformationInterface::cpu_information(CPUInformation& cpu_info) {

   if (NULL == _cpu_info) {

     return OS_ERR;

   }

   cpu_info = *_cpu_info; // shallow copy assignment

   return OS_OK;

 }

 class NetworkPerformanceInterface::NetworkPerformance : public CHeapObj<mtInternal> {

   friend class NetworkPerformanceInterface;

  private:

   NetworkPerformance();

   NetworkPerformance(const NetworkPerformance& rhs); // no impl

   NetworkPerformance& operator=(const NetworkPerformance& rhs); // no impl

   bool initialize();

   ~NetworkPerformance();

   int network_utilization(NetworkInterface** network_interfaces) const;

 };

 NetworkPerformanceInterface::NetworkPerformance::NetworkPerformance() {

 }

 bool NetworkPerformanceInterface::NetworkPerformance::initialize() {

   return true;

 }

 NetworkPerformanceInterface::NetworkPerformance::~NetworkPerformance() {

 }

 int NetworkPerformanceInterface::NetworkPerformance::network_utilization(NetworkInterface** network_interfaces) const {

   size_t len;

   int mib[] = {CTL_NET, PF_ROUTE, /* protocol number */ 0, /* address family */ 0, NET_RT_IFLIST2, /* NET_RT_FLAGS mask*/ 0};

   if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &len, NULL, 0) != 0) {

     return OS_ERR;

   }

   uint8_t* buf = NEW_RESOURCE_ARRAY(uint8_t, len);

   if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &len, NULL, 0) != 0) {

     return OS_ERR;

   }

   size_t index = 0;

   NetworkInterface* ret = NULL;

   while (index < len) {

     if_msghdr* msghdr = reinterpret_cast<if_msghdr*>(buf + index);

     index += msghdr->ifm_msglen;

     if (msghdr->ifm_type != RTM_IFINFO2) {

       continue;

     }

     if_msghdr2* msghdr2 = reinterpret_cast<if_msghdr2*>(msghdr);

     sockaddr_dl* sockaddr = reinterpret_cast<sockaddr_dl*>(msghdr2 + 1);

     // The interface name is not necessarily NUL-terminated

     char name_buf[128];

     size_t name_len = MIN2(sizeof(name_buf) - 1, static_cast<size_t>(sockaddr->sdl_nlen));

     strncpy(name_buf, sockaddr->sdl_data, name_len);

     name_buf[name_len] = '\0';

     uint64_t bytes_in = msghdr2->ifm_data.ifi_ibytes;

     uint64_t bytes_out = msghdr2->ifm_data.ifi_obytes;

     NetworkInterface* cur = new NetworkInterface(name_buf, bytes_in, bytes_out, ret);

     ret = cur;

   }

   *network_interfaces = ret;

   return OS_OK;

 }

 NetworkPerformanceInterface::NetworkPerformanceInterface() {

   _impl = NULL;

 }

 NetworkPerformanceInterface::~NetworkPerformanceInterface() {

   if (_impl != NULL) {

     delete _impl;

   }

 }

 bool NetworkPerformanceInterface::initialize() {

   _impl = new NetworkPerformanceInterface::NetworkPerformance();

   return _impl != NULL && _impl->initialize();

 }

 int NetworkPerformanceInterface::network_utilization(NetworkInterface** network_interfaces) const {

   return _impl->network_utilization(network_interfaces);

 }