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/* $Id$ */
/** @file
* VBox Darwin-specific Performance Classes implementation.
*/
/*
* Copyright (C) 2008-2013 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#include <mach/mach_error.h>
#include <mach/mach_host.h>
#include <mach/mach_init.h>
#include <mach/mach_time.h>
#include <mach/vm_statistics.h>
#include <sys/sysctl.h>
#include <sys/errno.h>
#include <iprt/err.h>
#include <iprt/log.h>
#include <iprt/mp.h>
#include <iprt/param.h>
#include <iprt/system.h>
#include "Performance.h"
/* The following declarations are missing in 10.4.x SDK */
/* @todo Replace them with libproc.h and sys/proc_info.h when 10.4 is no longer supported */
extern "C" int proc_pidinfo(int pid, int flavor, uint64_t arg, void *buffer, int buffersize);
struct proc_taskinfo {
uint64_t pti_virtual_size; /* virtual memory size (bytes) */
uint64_t pti_resident_size; /* resident memory size (bytes) */
uint64_t pti_total_user; /* total time */
uint64_t pti_total_system;
uint64_t pti_threads_user; /* existing threads only */
uint64_t pti_threads_system;
int32_t pti_policy; /* default policy for new threads */
int32_t pti_faults; /* number of page faults */
int32_t pti_pageins; /* number of actual pageins */
int32_t pti_cow_faults; /* number of copy-on-write faults */
int32_t pti_messages_sent; /* number of messages sent */
int32_t pti_messages_received; /* number of messages received */
int32_t pti_syscalls_mach; /* number of mach system calls */
int32_t pti_syscalls_unix; /* number of unix system calls */
int32_t pti_csw; /* number of context switches */
int32_t pti_threadnum; /* number of threads in the task */
int32_t pti_numrunning; /* number of running threads */
int32_t pti_priority; /* task priority*/
};
#define PROC_PIDTASKINFO 4
namespace pm {
class CollectorDarwin : public CollectorHAL
{
public:
CollectorDarwin();
virtual int getRawHostCpuLoad(uint64_t *user, uint64_t *kernel, uint64_t *idle);
virtual int getHostMemoryUsage(ULONG *total, ULONG *used, ULONG *available);
virtual int getRawProcessCpuLoad(RTPROCESS process, uint64_t *user, uint64_t *kernel, uint64_t *total);
virtual int getProcessMemoryUsage(RTPROCESS process, ULONG *used);
private:
ULONG totalRAM;
uint32_t nCpus;
};
CollectorHAL *createHAL()
{
return new CollectorDarwin();
}
CollectorDarwin::CollectorDarwin()
{
uint64_t cb;
int rc = RTSystemQueryTotalRam(&cb);
if (RT_FAILURE(rc))
totalRAM = 0;
else
totalRAM = (ULONG)(cb / 1024);
nCpus = RTMpGetOnlineCount();
Assert(nCpus);
if (nCpus == 0)
{
/* It is rather unsual to have no CPUs, but the show must go on. */
nCpus = 1;
}
}
int CollectorDarwin::getRawHostCpuLoad(uint64_t *user, uint64_t *kernel, uint64_t *idle)
{
kern_return_t krc;
mach_msg_type_number_t count;
host_cpu_load_info_data_t info;
count = HOST_CPU_LOAD_INFO_COUNT;
krc = host_statistics(mach_host_self(), HOST_CPU_LOAD_INFO, (host_info_t)&info, &count);
if (krc != KERN_SUCCESS)
{
Log(("host_statistics() -> %s", mach_error_string(krc)));
return RTErrConvertFromDarwinKern(krc);
}
*user = (uint64_t)info.cpu_ticks[CPU_STATE_USER]
+ info.cpu_ticks[CPU_STATE_NICE];
*kernel = (uint64_t)info.cpu_ticks[CPU_STATE_SYSTEM];
*idle = (uint64_t)info.cpu_ticks[CPU_STATE_IDLE];
return VINF_SUCCESS;
}
int CollectorDarwin::getHostMemoryUsage(ULONG *total, ULONG *used, ULONG *available)
{
uint64_t cb;
int rc = RTSystemQueryAvailableRam(&cb);
if (RT_SUCCESS(rc))
{
*total = totalRAM;
*available = cb / 1024;
*used = *total - *available;
}
return rc;
}
static int getProcessInfo(RTPROCESS process, struct proc_taskinfo *tinfo)
{
LogAleksey(("getProcessInfo() getting info for %d", process));
int nb = proc_pidinfo(process, PROC_PIDTASKINFO, 0, tinfo, sizeof(*tinfo));
if (nb <= 0)
{
int rc = errno;
Log(("proc_pidinfo() -> %s", strerror(rc)));
return RTErrConvertFromDarwin(rc);
}
else if ((unsigned int)nb < sizeof(*tinfo))
{
Log(("proc_pidinfo() -> too few bytes %d", nb));
return VERR_INTERNAL_ERROR;
}
return VINF_SUCCESS;
}
int CollectorDarwin::getRawProcessCpuLoad(RTPROCESS process, uint64_t *user, uint64_t *kernel, uint64_t *total)
{
struct proc_taskinfo tinfo;
int rc = getProcessInfo(process, &tinfo);
if (RT_SUCCESS(rc))
{
/*
* Adjust user and kernel values so 100% is when ALL cores are fully
* utilized (see @bugref{6345}).
*/
*user = tinfo.pti_total_user / nCpus;
*kernel = tinfo.pti_total_system / nCpus;
*total = mach_absolute_time();
}
return rc;
}
int CollectorDarwin::getProcessMemoryUsage(RTPROCESS process, ULONG *used)
{
struct proc_taskinfo tinfo;
int rc = getProcessInfo(process, &tinfo);
if (RT_SUCCESS(rc))
{
*used = tinfo.pti_resident_size / 1024;
}
return rc;
}
}
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