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/*
* Copyright 2010, Intel Corporation
*
* This file is part of PowerTOP
*
* This program file is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; version 2 of the License.
*
* This program 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
* for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program in a file named COPYING; if not, write to the
* Free Software Foundation, Inc,
* 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
* or just google for it.
*
* Authors:
* Srinivas Pandruvada <Srinivas.Pandruvada@linux.intel.com>
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "../parameters/parameters.h"
#include "dram_rapl_device.h"
dram_rapl_device::dram_rapl_device(cpudevice *parent, const char *classname, const char *dev_name, class abstract_cpu *_cpu)
: cpudevice(classname, dev_name, _cpu),
device_valid(false)
{
if (_cpu)
rapl = new c_rapl_interface(dev_name, cpu->get_first_cpu());
else
rapl = new c_rapl_interface();
last_time = time(NULL);
if (rapl->dram_domain_present()) {
device_valid = true;
parent->add_child(this);
rapl->get_dram_energy_status(&last_energy);
}
}
void dram_rapl_device::start_measurement(void)
{
last_time = time(NULL);
rapl->get_dram_energy_status(&last_energy);
}
void dram_rapl_device::end_measurement(void)
{
time_t curr_time = time(NULL);
double energy;
consumed_power = 0.0;
if ((curr_time - last_time) > 0) {
rapl->get_dram_energy_status(&energy);
consumed_power = (energy-last_energy)/(curr_time-last_time);
last_energy = energy;
last_time = curr_time;
}
}
double dram_rapl_device::power_usage(struct result_bundle *result, struct parameter_bundle *bundle)
{
if (rapl->dram_domain_present())
return consumed_power;
else
return 0.0;
}
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