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/*
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* Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "jvm.h"
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#include "memory/allocation.inline.hpp"
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#include "runtime/os.hpp"
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#include "runtime/os_perf.hpp"
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#include "os_solaris.inline.hpp"
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#include "utilities/macros.hpp"
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#include CPU_HEADER(vm_version_ext)
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#include <sys/types.h>
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#include <procfs.h>
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#include <dirent.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <kstat.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/sysinfo.h>
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#include <sys/lwp.h>
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#include <pthread.h>
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#include <time.h>
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#include <utmpx.h>
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#include <dlfcn.h>
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#include <sys/loadavg.h>
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#include <limits.h>
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static const double NANOS_PER_SEC = 1000000000.0;
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struct CPUPerfTicks {
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kstat_t* kstat;
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uint64_t last_idle;
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uint64_t last_total;
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double last_ratio;
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};
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struct CPUPerfCounters {
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int nProcs;
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CPUPerfTicks* jvmTicks;
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kstat_ctl_t* kstat_ctrl;
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};
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static int get_info(const char* path, void* info, size_t s, off_t o) {
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assert(path != NULL, "path is NULL!");
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assert(info != NULL, "info is NULL!");
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int fd = -1;
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if ((fd = open(path, O_RDONLY)) < 0) {
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return OS_ERR;
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}
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if (pread(fd, info, s, o) != s) {
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close(fd);
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return OS_ERR;
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}
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close(fd);
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return OS_OK;
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}
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static int get_psinfo2(void* info, size_t s, off_t o) {
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return get_info("/proc/self/psinfo", info, s, o);
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}
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static int get_psinfo(psinfo_t* info) {
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return get_psinfo2(info, sizeof(*info), 0);
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}
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static int get_psinfo(char* file, psinfo_t* info) {
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assert(file != NULL, "file is NULL!");
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assert(info != NULL, "info is NULL!");
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return get_info(file, info, sizeof(*info), 0);
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}
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static int get_usage(prusage_t* usage) {
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assert(usage != NULL, "usage is NULL!");
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return get_info("/proc/self/usage", usage, sizeof(*usage), 0);
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}
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static int read_cpustat(kstat_ctl_t* kstat_ctrl, CPUPerfTicks* load, cpu_stat_t* cpu_stat) {
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assert(kstat_ctrl != NULL, "kstat_ctrl pointer is NULL!");
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assert(load != NULL, "load pointer is NULL!");
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assert(cpu_stat != NULL, "cpu_stat pointer is NULL!");
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if (load->kstat == NULL) {
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// no handle.
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return OS_ERR;
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}
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if (kstat_read(kstat_ctrl, load->kstat, cpu_stat) == OS_ERR) {
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// disable handle for this CPU
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load->kstat = NULL;
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return OS_ERR;
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}
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return OS_OK;
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}
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static double get_cpu_load(int which_logical_cpu, CPUPerfCounters* counters) {
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assert(counters != NULL, "counters pointer is NULL!");
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cpu_stat_t cpu_stat = {0};
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if (which_logical_cpu >= counters->nProcs) {
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return .0;
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}
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CPUPerfTicks load = counters->jvmTicks[which_logical_cpu];
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if (read_cpustat(counters->kstat_ctrl, &load, &cpu_stat) != OS_OK) {
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return .0;
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}
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uint_t* usage = cpu_stat.cpu_sysinfo.cpu;
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if (usage == NULL) {
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return .0;
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}
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uint64_t c_idle = usage[CPU_IDLE];
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uint64_t c_total = 0;
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for (int i = 0; i < CPU_STATES; i++) {
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c_total += usage[i];
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}
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// Calculate diff against previous snapshot
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uint64_t d_idle = c_idle - load.last_idle;
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uint64_t d_total = c_total - load.last_total;
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/** update if weve moved */
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if (d_total > 0) {
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// Save current values for next time around
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load.last_idle = c_idle;
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load.last_total = c_total;
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load.last_ratio = (double) (d_total - d_idle) / d_total;
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}
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return load.last_ratio;
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}
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static int get_boot_time(uint64_t* time) {
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assert(time != NULL, "time pointer is NULL!");
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setutxent();
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for(;;) {
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struct utmpx* u;
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if ((u = getutxent()) == NULL) {
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break;
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}
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if (u->ut_type == BOOT_TIME) {
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*time = u->ut_xtime;
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endutxent();
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return OS_OK;
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}
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}
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endutxent();
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return OS_ERR;
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}
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static int get_noof_context_switches(CPUPerfCounters* counters, uint64_t* switches) {
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assert(switches != NULL, "switches pointer is NULL!");
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assert(counters != NULL, "counter pointer is NULL!");
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*switches = 0;
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uint64_t s = 0;
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// Collect data from all CPUs
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for (int i = 0; i < counters->nProcs; i++) {
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cpu_stat_t cpu_stat = {0};
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CPUPerfTicks load = counters->jvmTicks[i];
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if (read_cpustat(counters->kstat_ctrl, &load, &cpu_stat) == OS_OK) {
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s += cpu_stat.cpu_sysinfo.pswitch;
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} else {
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//fail fast...
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return OS_ERR;
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}
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}
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*switches = s;
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return OS_OK;
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}
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static int perf_context_switch_rate(CPUPerfCounters* counters, double* rate) {
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assert(counters != NULL, "counters is NULL!");
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assert(rate != NULL, "rate pointer is NULL!");
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static pthread_mutex_t contextSwitchLock = PTHREAD_MUTEX_INITIALIZER;
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static uint64_t lastTime = 0;
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static uint64_t lastSwitches = 0;
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static double lastRate = 0.0;
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uint64_t lt = 0;
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int res = 0;
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if (lastTime == 0) {
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uint64_t tmp;
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if (get_boot_time(&tmp) < 0) {
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return OS_ERR;
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}
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lt = tmp * 1000;
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}
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res = OS_OK;
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pthread_mutex_lock(&contextSwitchLock);
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{
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uint64_t sw = 0;
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clock_t t, d;
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if (lastTime == 0) {
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lastTime = lt;
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}
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t = clock();
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d = t - lastTime;
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if (d == 0) {
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*rate = lastRate;
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} else if (get_noof_context_switches(counters, &sw)== OS_OK) {
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*rate = ((double)(sw - lastSwitches) / d) * 1000;
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lastRate = *rate;
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lastSwitches = sw;
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lastTime = t;
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} else {
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*rate = 0.0;
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res = OS_ERR;
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}
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if (*rate < 0.0) {
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*rate = 0.0;
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lastRate = 0.0;
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}
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}
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pthread_mutex_unlock(&contextSwitchLock);
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return res;
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}
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class CPUPerformanceInterface::CPUPerformance : public CHeapObj<mtInternal> {
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friend class CPUPerformanceInterface;
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private:
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CPUPerfCounters _counters;
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int cpu_load(int which_logical_cpu, double* cpu_load);
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int context_switch_rate(double* rate);
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int cpu_load_total_process(double* cpu_load);
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int cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad);
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CPUPerformance();
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~CPUPerformance();
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bool initialize();
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};
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CPUPerformanceInterface::CPUPerformance::CPUPerformance() {
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_counters.nProcs = 0;
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_counters.jvmTicks = NULL;
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_counters.kstat_ctrl = NULL;
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}
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bool CPUPerformanceInterface::CPUPerformance::initialize() {
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// initialize kstat control structure,
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_counters.kstat_ctrl = kstat_open();
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assert(_counters.kstat_ctrl != NULL, "error initializing kstat control structure!");
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if (NULL == _counters.kstat_ctrl) {
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return false;
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}
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// Get number of CPU(s)
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if ((_counters.nProcs = sysconf(_SC_NPROCESSORS_ONLN)) == OS_ERR) {
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// ignore error?
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_counters.nProcs = 1;
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}
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assert(_counters.nProcs > 0, "no CPUs detected in sysconf call!");
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if (_counters.nProcs == 0) {
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return false;
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}
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// Data structure(s) for saving CPU load (one per CPU)
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size_t tick_array_size = _counters.nProcs * sizeof(CPUPerfTicks);
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_counters.jvmTicks = (CPUPerfTicks*)NEW_C_HEAP_ARRAY(char, tick_array_size, mtInternal);
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if (NULL == _counters.jvmTicks) {
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return false;
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}
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memset(_counters.jvmTicks, 0, tick_array_size);
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// Get kstat cpu_stat counters for every CPU
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// loop over kstat to find our cpu_stat(s)
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int i = 0;
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for (kstat_t* kstat = _counters.kstat_ctrl->kc_chain; kstat != NULL; kstat = kstat->ks_next) {
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if (strncmp(kstat->ks_module, "cpu_stat", 8) == 0) {
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if (kstat_read(_counters.kstat_ctrl, kstat, NULL) == OS_ERR) {
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continue;
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}
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if (i == _counters.nProcs) {
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// more cpu_stats than reported CPUs
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break;
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}
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_counters.jvmTicks[i++].kstat = kstat;
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}
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}
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return true;
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}
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CPUPerformanceInterface::CPUPerformance::~CPUPerformance() {
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if (_counters.jvmTicks != NULL) {
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FREE_C_HEAP_ARRAY(char, _counters.jvmTicks);
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}
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if (_counters.kstat_ctrl != NULL) {
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kstat_close(_counters.kstat_ctrl);
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}
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}
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int CPUPerformanceInterface::CPUPerformance::cpu_load(int which_logical_cpu, double* cpu_load) {
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assert(cpu_load != NULL, "cpu_load pointer is NULL!");
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double t = .0;
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if (-1 == which_logical_cpu) {
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for (int i = 0; i < _counters.nProcs; i++) {
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t += get_cpu_load(i, &_counters);
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}
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// Cap total systemload to 1.0
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t = MIN2<double>((t / _counters.nProcs), 1.0);
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} else {
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t = MIN2<double>(get_cpu_load(which_logical_cpu, &_counters), 1.0);
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}
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*cpu_load = t;
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return OS_OK;
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}
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int CPUPerformanceInterface::CPUPerformance::cpu_load_total_process(double* cpu_load) {
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assert(cpu_load != NULL, "cpu_load pointer is NULL!");
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psinfo_t info;
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// Get the percentage of "recent cpu usage" from all the lwp:s in the JVM:s
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// process. This is returned as a value between 0.0 and 1.0 multiplied by 0x8000.
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if (get_psinfo2(&info.pr_pctcpu, sizeof(info.pr_pctcpu), offsetof(psinfo_t, pr_pctcpu)) != 0) {
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*cpu_load = 0.0;
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return OS_ERR;
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}
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*cpu_load = (double) info.pr_pctcpu / 0x8000;
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return OS_OK;
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}
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int CPUPerformanceInterface::CPUPerformance::cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad) {
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assert(pjvmUserLoad != NULL, "pjvmUserLoad not inited");
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assert(pjvmKernelLoad != NULL, "pjvmKernelLoad not inited");
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assert(psystemTotalLoad != NULL, "psystemTotalLoad not inited");
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static uint64_t lastTime;
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static uint64_t lastUser, lastKernel;
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static double lastUserRes, lastKernelRes;
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pstatus_t pss;
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psinfo_t info;
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*pjvmKernelLoad = *pjvmUserLoad = *psystemTotalLoad = 0;
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if (get_info("/proc/self/status", &pss.pr_utime, sizeof(timestruc_t)*2, offsetof(pstatus_t, pr_utime)) != 0) {
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return OS_ERR;
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}
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if (get_psinfo(&info) != 0) {
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return OS_ERR;
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}
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// get the total time in user, kernel and total time
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// check ratios for 'lately' and multiply the 'recent load'.
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uint64_t time = (info.pr_time.tv_sec * NANOS_PER_SEC) + info.pr_time.tv_nsec;
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uint64_t user = (pss.pr_utime.tv_sec * NANOS_PER_SEC) + pss.pr_utime.tv_nsec;
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uint64_t kernel = (pss.pr_stime.tv_sec * NANOS_PER_SEC) + pss.pr_stime.tv_nsec;
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uint64_t diff = time - lastTime;
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double load = (double) info.pr_pctcpu / 0x8000;
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if (diff > 0) {
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lastUserRes = (load * (user - lastUser)) / diff;
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lastKernelRes = (load * (kernel - lastKernel)) / diff;
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|
402 |
// BUG9182835 - patch for clamping these values to sane ones.
|
|
403 |
lastUserRes = MIN2<double>(1, lastUserRes);
|
|
404 |
lastUserRes = MAX2<double>(0, lastUserRes);
|
|
405 |
lastKernelRes = MIN2<double>(1, lastKernelRes);
|
|
406 |
lastKernelRes = MAX2<double>(0, lastKernelRes);
|
|
407 |
}
|
|
408 |
|
|
409 |
double t = .0;
|
|
410 |
cpu_load(-1, &t);
|
|
411 |
// clamp at user+system and 1.0
|
|
412 |
if (lastUserRes + lastKernelRes > t) {
|
|
413 |
t = MIN2<double>(lastUserRes + lastKernelRes, 1.0);
|
|
414 |
}
|
|
415 |
|
|
416 |
*pjvmUserLoad = lastUserRes;
|
|
417 |
*pjvmKernelLoad = lastKernelRes;
|
|
418 |
*psystemTotalLoad = t;
|
|
419 |
|
|
420 |
lastTime = time;
|
|
421 |
lastUser = user;
|
|
422 |
lastKernel = kernel;
|
|
423 |
|
|
424 |
return OS_OK;
|
|
425 |
}
|
|
426 |
|
|
427 |
int CPUPerformanceInterface::CPUPerformance::context_switch_rate(double* rate) {
|
|
428 |
return perf_context_switch_rate(&_counters, rate);
|
|
429 |
}
|
|
430 |
|
|
431 |
CPUPerformanceInterface::CPUPerformanceInterface() {
|
|
432 |
_impl = NULL;
|
|
433 |
}
|
|
434 |
|
|
435 |
bool CPUPerformanceInterface::initialize() {
|
|
436 |
_impl = new CPUPerformanceInterface::CPUPerformance();
|
|
437 |
return _impl != NULL && _impl->initialize();
|
|
438 |
}
|
|
439 |
|
|
440 |
CPUPerformanceInterface::~CPUPerformanceInterface(void) {
|
|
441 |
if (_impl != NULL) {
|
|
442 |
delete _impl;
|
|
443 |
}
|
|
444 |
}
|
|
445 |
|
|
446 |
int CPUPerformanceInterface::cpu_load(int which_logical_cpu, double* cpu_load) const {
|
|
447 |
return _impl->cpu_load(which_logical_cpu, cpu_load);
|
|
448 |
}
|
|
449 |
|
|
450 |
int CPUPerformanceInterface::cpu_load_total_process(double* cpu_load) const {
|
|
451 |
return _impl->cpu_load_total_process(cpu_load);
|
|
452 |
}
|
|
453 |
|
|
454 |
int CPUPerformanceInterface::cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad) const {
|
|
455 |
return _impl->cpu_loads_process(pjvmUserLoad, pjvmKernelLoad, psystemTotalLoad);
|
|
456 |
}
|
|
457 |
|
|
458 |
int CPUPerformanceInterface::context_switch_rate(double* rate) const {
|
|
459 |
return _impl->context_switch_rate(rate);
|
|
460 |
}
|
|
461 |
|
|
462 |
class SystemProcessInterface::SystemProcesses : public CHeapObj<mtInternal> {
|
|
463 |
friend class SystemProcessInterface;
|
|
464 |
private:
|
|
465 |
class ProcessIterator : public CHeapObj<mtInternal> {
|
|
466 |
friend class SystemProcessInterface::SystemProcesses;
|
|
467 |
private:
|
|
468 |
DIR* _dir;
|
|
469 |
struct dirent* _entry;
|
|
470 |
bool _valid;
|
|
471 |
|
|
472 |
ProcessIterator();
|
|
473 |
~ProcessIterator();
|
|
474 |
bool initialize();
|
|
475 |
|
|
476 |
bool is_valid() const { return _valid; }
|
|
477 |
bool is_valid_entry(struct dirent* const entry) const;
|
|
478 |
bool is_dir(const char* const name) const;
|
|
479 |
char* allocate_string(const char* const str) const;
|
|
480 |
int current(SystemProcess* const process_info);
|
|
481 |
int next_process();
|
|
482 |
};
|
|
483 |
|
|
484 |
ProcessIterator* _iterator;
|
|
485 |
SystemProcesses();
|
|
486 |
bool initialize();
|
|
487 |
~SystemProcesses();
|
|
488 |
|
|
489 |
//information about system processes
|
|
490 |
int system_processes(SystemProcess** system_processes, int* no_of_sys_processes) const;
|
|
491 |
};
|
|
492 |
|
|
493 |
bool SystemProcessInterface::SystemProcesses::ProcessIterator::is_dir(const char* name) const {
|
|
494 |
struct stat64 mystat;
|
|
495 |
int ret_val = 0;
|
|
496 |
|
|
497 |
ret_val = ::stat64(name, &mystat);
|
|
498 |
|
|
499 |
if (ret_val < 0) {
|
|
500 |
return false;
|
|
501 |
}
|
|
502 |
ret_val = S_ISDIR(mystat.st_mode);
|
|
503 |
return ret_val > 0;
|
|
504 |
}
|
|
505 |
|
|
506 |
// if it has a numeric name, is a directory and has a 'psinfo' file in it
|
|
507 |
bool SystemProcessInterface::SystemProcesses::ProcessIterator::is_valid_entry(struct dirent* entry) const {
|
|
508 |
// ignore the "." and ".." directories
|
|
509 |
if ((strcmp(entry->d_name, ".") == 0) ||
|
|
510 |
(strcmp(entry->d_name, "..") == 0)) {
|
|
511 |
return false;
|
|
512 |
}
|
|
513 |
|
|
514 |
char buffer[PATH_MAX] = {0};
|
|
515 |
uint64_t size = 0;
|
|
516 |
bool result = false;
|
|
517 |
FILE *fp = NULL;
|
|
518 |
|
|
519 |
if (atoi(entry->d_name) != 0) {
|
|
520 |
jio_snprintf(buffer, PATH_MAX, "/proc/%s", entry->d_name);
|
|
521 |
|
|
522 |
if (is_dir(buffer)) {
|
|
523 |
memset(buffer, 0, PATH_MAX);
|
|
524 |
jio_snprintf(buffer, PATH_MAX, "/proc/%s/psinfo", entry->d_name);
|
|
525 |
if ((fp = fopen(buffer, "r")) != NULL) {
|
|
526 |
int nread = 0;
|
|
527 |
psinfo_t psinfo_data;
|
|
528 |
if ((nread = fread(&psinfo_data, 1, sizeof(psinfo_t), fp)) != -1) {
|
|
529 |
// only considering system process owned by root
|
|
530 |
if (psinfo_data.pr_uid == 0) {
|
|
531 |
result = true;
|
|
532 |
}
|
|
533 |
}
|
|
534 |
}
|
|
535 |
}
|
|
536 |
}
|
|
537 |
|
|
538 |
if (fp != NULL) {
|
|
539 |
fclose(fp);
|
|
540 |
}
|
|
541 |
|
|
542 |
return result;
|
|
543 |
}
|
|
544 |
|
|
545 |
char* SystemProcessInterface::SystemProcesses::ProcessIterator::allocate_string(const char* str) const {
|
|
546 |
if (str != NULL) {
|
|
547 |
size_t len = strlen(str);
|
|
548 |
char* tmp = NEW_C_HEAP_ARRAY(char, len+1, mtInternal);
|
|
549 |
strncpy(tmp, str, len);
|
|
550 |
tmp[len] = '\0';
|
|
551 |
return tmp;
|
|
552 |
}
|
|
553 |
return NULL;
|
|
554 |
}
|
|
555 |
|
|
556 |
int SystemProcessInterface::SystemProcesses::ProcessIterator::current(SystemProcess* process_info) {
|
|
557 |
if (!is_valid()) {
|
|
558 |
return OS_ERR;
|
|
559 |
}
|
|
560 |
|
|
561 |
char psinfo_path[PATH_MAX] = {0};
|
|
562 |
jio_snprintf(psinfo_path, PATH_MAX, "/proc/%s/psinfo", _entry->d_name);
|
|
563 |
|
|
564 |
FILE *fp = NULL;
|
|
565 |
if ((fp = fopen(psinfo_path, "r")) == NULL) {
|
|
566 |
return OS_ERR;
|
|
567 |
}
|
|
568 |
|
|
569 |
int nread = 0;
|
|
570 |
psinfo_t psinfo_data;
|
|
571 |
if ((nread = fread(&psinfo_data, 1, sizeof(psinfo_t), fp)) == -1) {
|
|
572 |
fclose(fp);
|
|
573 |
return OS_ERR;
|
|
574 |
}
|
|
575 |
|
|
576 |
char *exe_path = NULL;
|
|
577 |
if ((psinfo_data.pr_fname != NULL) &&
|
|
578 |
(psinfo_data.pr_psargs != NULL)) {
|
|
579 |
char *path_substring = strstr(psinfo_data.pr_psargs, psinfo_data.pr_fname);
|
|
580 |
if (path_substring != NULL) {
|
|
581 |
int len = path_substring - psinfo_data.pr_psargs;
|
|
582 |
exe_path = NEW_C_HEAP_ARRAY(char, len+1, mtInternal);
|
|
583 |
if (exe_path != NULL) {
|
|
584 |
jio_snprintf(exe_path, len, "%s", psinfo_data.pr_psargs);
|
|
585 |
exe_path[len] = '\0';
|
|
586 |
}
|
|
587 |
}
|
|
588 |
}
|
|
589 |
|
|
590 |
process_info->set_pid(atoi(_entry->d_name));
|
|
591 |
process_info->set_name(allocate_string(psinfo_data.pr_fname));
|
|
592 |
process_info->set_path(allocate_string(exe_path));
|
|
593 |
process_info->set_command_line(allocate_string(psinfo_data.pr_psargs));
|
|
594 |
|
|
595 |
if (exe_path != NULL) {
|
|
596 |
FREE_C_HEAP_ARRAY(char, exe_path);
|
|
597 |
}
|
|
598 |
|
|
599 |
if (fp != NULL) {
|
|
600 |
fclose(fp);
|
|
601 |
}
|
|
602 |
|
|
603 |
return OS_OK;
|
|
604 |
}
|
|
605 |
|
|
606 |
int SystemProcessInterface::SystemProcesses::ProcessIterator::next_process() {
|
|
607 |
struct dirent* entry;
|
|
608 |
|
|
609 |
if (!is_valid()) {
|
|
610 |
return OS_ERR;
|
|
611 |
}
|
|
612 |
|
|
613 |
do {
|
|
614 |
if ((entry = os::readdir(_dir, _entry)) == NULL) {
|
|
615 |
// error
|
|
616 |
_valid = false;
|
|
617 |
return OS_ERR;
|
|
618 |
}
|
|
619 |
} while(!is_valid_entry(_entry));
|
|
620 |
|
|
621 |
_valid = true;
|
|
622 |
return OS_OK;
|
|
623 |
}
|
|
624 |
|
|
625 |
SystemProcessInterface::SystemProcesses::ProcessIterator::ProcessIterator() {
|
|
626 |
_dir = NULL;
|
|
627 |
_entry = NULL;
|
|
628 |
_valid = false;
|
|
629 |
}
|
|
630 |
|
|
631 |
bool SystemProcessInterface::SystemProcesses::ProcessIterator::initialize() {
|
|
632 |
_dir = opendir("/proc");
|
|
633 |
_entry = (struct dirent*)NEW_C_HEAP_ARRAY(char, sizeof(struct dirent) + _PC_NAME_MAX + 1, mtInternal);
|
|
634 |
if (NULL == _entry) {
|
|
635 |
return false;
|
|
636 |
}
|
|
637 |
_valid = true;
|
|
638 |
next_process();
|
|
639 |
|
|
640 |
return true;
|
|
641 |
}
|
|
642 |
|
|
643 |
SystemProcessInterface::SystemProcesses::ProcessIterator::~ProcessIterator() {
|
|
644 |
if (_entry != NULL) {
|
|
645 |
FREE_C_HEAP_ARRAY(char, _entry);
|
|
646 |
}
|
|
647 |
|
|
648 |
if (_dir != NULL) {
|
|
649 |
closedir(_dir);
|
|
650 |
}
|
|
651 |
}
|
|
652 |
|
|
653 |
SystemProcessInterface::SystemProcesses::SystemProcesses() {
|
|
654 |
_iterator = NULL;
|
|
655 |
}
|
|
656 |
|
|
657 |
bool SystemProcessInterface::SystemProcesses::initialize() {
|
|
658 |
_iterator = new SystemProcessInterface::SystemProcesses::ProcessIterator();
|
|
659 |
return _iterator != NULL && _iterator->initialize();
|
|
660 |
}
|
|
661 |
|
|
662 |
SystemProcessInterface::SystemProcesses::~SystemProcesses() {
|
|
663 |
if (_iterator != NULL) {
|
|
664 |
delete _iterator;
|
|
665 |
}
|
|
666 |
}
|
|
667 |
|
|
668 |
int SystemProcessInterface::SystemProcesses::system_processes(SystemProcess** system_processes, int* no_of_sys_processes) const {
|
|
669 |
assert(system_processes != NULL, "system_processes pointer is NULL!");
|
|
670 |
assert(no_of_sys_processes != NULL, "system_processes counter pointer is NULL!");
|
|
671 |
assert(_iterator != NULL, "iterator is NULL!");
|
|
672 |
|
|
673 |
// initialize pointers
|
|
674 |
*no_of_sys_processes = 0;
|
|
675 |
*system_processes = NULL;
|
|
676 |
|
|
677 |
while (_iterator->is_valid()) {
|
|
678 |
SystemProcess* tmp = new SystemProcess();
|
|
679 |
_iterator->current(tmp);
|
|
680 |
|
|
681 |
//if already existing head
|
|
682 |
if (*system_processes != NULL) {
|
|
683 |
//move "first to second"
|
|
684 |
tmp->set_next(*system_processes);
|
|
685 |
}
|
|
686 |
// new head
|
|
687 |
*system_processes = tmp;
|
|
688 |
// increment
|
|
689 |
(*no_of_sys_processes)++;
|
|
690 |
// step forward
|
|
691 |
_iterator->next_process();
|
|
692 |
}
|
|
693 |
return OS_OK;
|
|
694 |
}
|
|
695 |
|
|
696 |
int SystemProcessInterface::system_processes(SystemProcess** system_procs, int* no_of_sys_processes) const {
|
|
697 |
return _impl->system_processes(system_procs, no_of_sys_processes);
|
|
698 |
}
|
|
699 |
|
|
700 |
SystemProcessInterface::SystemProcessInterface() {
|
|
701 |
_impl = NULL;
|
|
702 |
}
|
|
703 |
|
|
704 |
bool SystemProcessInterface::initialize() {
|
|
705 |
_impl = new SystemProcessInterface::SystemProcesses();
|
|
706 |
return _impl != NULL && _impl->initialize();
|
|
707 |
|
|
708 |
}
|
|
709 |
|
|
710 |
SystemProcessInterface::~SystemProcessInterface() {
|
|
711 |
if (_impl != NULL) {
|
|
712 |
delete _impl;
|
|
713 |
}
|
|
714 |
}
|
|
715 |
|
|
716 |
CPUInformationInterface::CPUInformationInterface() {
|
|
717 |
_cpu_info = NULL;
|
|
718 |
}
|
|
719 |
|
|
720 |
bool CPUInformationInterface::initialize() {
|
|
721 |
_cpu_info = new CPUInformation();
|
|
722 |
if (_cpu_info == NULL) {
|
|
723 |
return false;
|
|
724 |
}
|
|
725 |
_cpu_info->set_number_of_hardware_threads(VM_Version_Ext::number_of_threads());
|
|
726 |
_cpu_info->set_number_of_cores(VM_Version_Ext::number_of_cores());
|
|
727 |
_cpu_info->set_number_of_sockets(VM_Version_Ext::number_of_sockets());
|
|
728 |
_cpu_info->set_cpu_name(VM_Version_Ext::cpu_name());
|
|
729 |
_cpu_info->set_cpu_description(VM_Version_Ext::cpu_description());
|
|
730 |
return true;
|
|
731 |
}
|
|
732 |
|
|
733 |
CPUInformationInterface::~CPUInformationInterface() {
|
|
734 |
if (_cpu_info != NULL) {
|
|
735 |
if (_cpu_info->cpu_name() != NULL) {
|
|
736 |
const char* cpu_name = _cpu_info->cpu_name();
|
|
737 |
FREE_C_HEAP_ARRAY(char, cpu_name);
|
|
738 |
_cpu_info->set_cpu_name(NULL);
|
|
739 |
}
|
|
740 |
if (_cpu_info->cpu_description() != NULL) {
|
|
741 |
const char* cpu_desc = _cpu_info->cpu_description();
|
|
742 |
FREE_C_HEAP_ARRAY(char, cpu_desc);
|
|
743 |
_cpu_info->set_cpu_description(NULL);
|
|
744 |
}
|
|
745 |
delete _cpu_info;
|
|
746 |
}
|
|
747 |
}
|
|
748 |
|
|
749 |
int CPUInformationInterface::cpu_information(CPUInformation& cpu_info) {
|
|
750 |
if (_cpu_info == NULL) {
|
|
751 |
return OS_ERR;
|
|
752 |
}
|
|
753 |
|
|
754 |
cpu_info = *_cpu_info; // shallow copy assignment
|
|
755 |
return OS_OK;
|
|
756 |
}
|