jdk8-mips64-public/hotspot: src/os/bsd/vm/os_perf_bsd.cpp@b985cbb00e68 (annotated)

src/os/bsd/vm/os_perf_bsd.cpp@b985cbb00e68 (annotated)

src/os/bsd/vm/os_perf_bsd.cpp

Mon, 12 Aug 2019 18:30:40 +0300

author: apetushkov
date: Mon, 12 Aug 2019 18:30:40 +0300
changeset 9858: b985cbb00e68
permissions: -rw-r--r--

8223147: JFR Backport
8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens

 /*
  * 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);
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/os/bsd/vm/os_perf_bsd.cpp@b985cbb00e68 (annotated)

src/os/bsd/vm/os_perf_bsd.cpp