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openGauss-OM/script/base_utils/os/memory_util.py
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Python

# -*- coding:utf-8 -*-
#############################################################################
# Copyright (c) 2020 Huawei Technologies Co.,Ltd.
#
# openGauss is licensed under Mulan PSL v2.
# You can use this software according to the terms
# and conditions of the Mulan PSL v2.
# You may obtain a copy of Mulan PSL v2 at:
#
# http://license.coscl.org.cn/MulanPSL2
#
# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OF ANY KIND,
# EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
# MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
# See the Mulan PSL v2 for more details.
# ----------------------------------------------------------------------------
# Description : memory.py is a utility to do something for memory information.
#############################################################################
try:
import sys
import psutil
sys.path.append(sys.path[0] + "/../../")
from gspylib.common.ErrorCode import ErrorCode
except ImportError as e:
sys.exit("[GAUSS-52200] : Unable to import module: %s." % str(e))
class MemoryUtil(object):
"""
function: Init the MemInfo options
"""
@staticmethod
def getMemTotalSize():
"""
function : Get system virtual memory total size
input : null
output : total virtual memory(byte)
"""
try:
return psutil.virtual_memory().total
except Exception as excep:
raise Exception(ErrorCode.GAUSS_505["GAUSS_50502"] %
"system memory usage" + "Error: %s" % str(excep))