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67a1064eb8
A new counter MemHeapUsage was added to OSD_MemInfo class to examine program heap size DRAW command meminfo got new option -h (--heap ) to use new counter data The following testcases were changed to use new option -h of DRAW command meminfo myCounters[MemHeapUsage] now will always be refilled every time the OSD_MemInfo::Update() function is called. Fixed testcases to use meminfo -h instead of meminfo -w to detect memory leaks more properly.
104 lines
4.4 KiB
C++
104 lines
4.4 KiB
C++
// Created on: 2011-10-05
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// Created by: Kirill GAVRILOV
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// Copyright (c) 2012 OPEN CASCADE SAS
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//
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// The content of this file is subject to the Open CASCADE Technology Public
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// License Version 6.5 (the "License"). You may not use the content of this file
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// except in compliance with the License. Please obtain a copy of the License
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// at http://www.opencascade.org and read it completely before using this file.
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//
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// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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//
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// The Original Code and all software distributed under the License is
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// distributed on an "AS IS" basis, without warranty of any kind, and the
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// Initial Developer hereby disclaims all such warranties, including without
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// limitation, any warranties of merchantability, fitness for a particular
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// purpose or non-infringement. Please see the License for the specific terms
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// and conditions governing the rights and limitations under the License.
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#ifndef _OSD_MemInfo_H__
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#define _OSD_MemInfo_H__
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#include <Standard_Transient.hxx>
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#include <TCollection_AsciiString.hxx>
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//! This class provide information about memory utilized by current process.
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//! This information includes:
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//! - Private Memory - synthetic value that tries to filter out the memory
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//! usage only by the process itself (allocated for data
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//! and stack), excluding dynamic libraries.
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//! These pages may be in RAM or in SWAP.
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//! - Virtual Memory - amount of reserved and committed memory in the
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//! user-mode portion of the virtual address space.
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//! Notice that this counter includes reserved memory
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//! (not yet in used) and shared between processes memory (libraries).
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//! - Working Set - set of memory pages in the virtual address space of the process
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//! that are currently resident in physical memory (RAM).
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//! These pages are available for an application to use
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//! without triggering a page fault.
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//! - Pagefile Usage - space allocated for the pagefile, in bytes.
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//! Those pages may or may not be in memory (RAM)
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//! thus this counter couldn't be used to estimate
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//! how many active pages doesn't present in RAM.
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//!
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//! Notice that none of these counters can be used as absolute measure of
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//! application memory consumption!
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//!
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//! User should analyze all values in specific case to make correct decision
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//! about memory (over)usage. This is also prefferred to use specialized
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//! tools to detect memory leaks.
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//!
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//! This also means that these values should not be used for intellectual
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//! memory management by application itself.
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class OSD_MemInfo : public Standard_Transient
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{
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public:
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enum Counter
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{
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MemPrivate = 0, //!< Virtual memory allocated for data and stack excluding libraries
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MemVirtual, //!< Reserved and committed memory of the virtual address space
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MemWorkingSet, //!< Memory pages that are currently resident in physical memory
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MemWorkingSetPeak, //!< Peak working set size
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MemSwapUsage, //!< Space allocated for the pagefile
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MemSwapUsagePeak, //!< Peak space allocated for the pagefile
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MemHeapUsage, //!< Total space allocated from the heap
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MemCounter_NB //!< Indicates total counters number
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};
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public:
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//! Create and initialize
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Standard_EXPORT OSD_MemInfo();
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//! Update counters
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Standard_EXPORT void Update();
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//! Return the string representation for all available counter.
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Standard_EXPORT TCollection_AsciiString ToString() const;
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//! Return value or specified counter in bytes.
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//! Notice that NOT all counters are available on various systems.
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//! Standard_Size(-1) means invalid (unavailable) value.
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Standard_EXPORT Standard_Size Value (const OSD_MemInfo::Counter theCounter) const;
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//! Return value or specified counter in MiB.
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//! Notice that NOT all counters are available on various systems.
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//! Standard_Size(-1) means invalid (unavailable) value.
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Standard_EXPORT Standard_Size ValueMiB (const OSD_MemInfo::Counter theCounter) const;
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public:
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//! Return the string representation for all available counter.
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Standard_EXPORT static TCollection_AsciiString PrintInfo();
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private:
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Standard_Size myCounters[MemCounter_NB]; //!< Counters' values, in bytes
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};
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#endif // _OSD_MemInfo_H__
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