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  v. 2023.09 (Elderberry)
 
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system-info.cpp
Go to the documentation of this file.
1#include <ogdf/basic/basic.h>
2#include <ogdf/basic/System.h>
3
4using namespace ogdf;
5
6const char *yn(bool b)
7{
8 return b ? "yes" : "no";
9}
10
11int main()
12{
13 std::cout
14 << "---------------------------------------" << std::endl
15 << " System-specific information " << std::endl
16 << "---------------------------------------" << std::endl
17 << std::endl
18
19 << "Cache / processors:" << std::endl
20 << "-------------------" << std::endl
21 << "Processors: " << System::numberOfProcessors() << std::endl
22 << "L2-Cache: " << System::cacheSizeKBytes() << " KBytes" << std::endl
23 << "Cache-Line: " << System::cacheLineBytes() << " Bytes" << std::endl
24 << std::endl
25
26 << "Supported technologies:" << std::endl
27 << "-----------------------" << std::endl
28 << "MMX: " << yn(System::cpuSupports(CPUFeature::MMX)) << std::endl
29 << "SSE: " << yn(System::cpuSupports(CPUFeature::SSE)) << std::endl
30 << "SSE2: " << yn(System::cpuSupports(CPUFeature::SSE2)) << std::endl
31 << "SSE3: " << yn(System::cpuSupports(CPUFeature::SSE3)) << std::endl
32 << "SSSE3: " << yn(System::cpuSupports(CPUFeature::SSSE3)) << std::endl
33 << "SSE4.1: " << yn(System::cpuSupports(CPUFeature::SSE4_1)) << std::endl
34 << "SSE4.2: " << yn(System::cpuSupports(CPUFeature::SSE4_2)) << std::endl
35 << "VMX: " << yn(System::cpuSupports(CPUFeature::VMX)) << std::endl
36 << "SMX: " << yn(System::cpuSupports(CPUFeature::SMX)) << std::endl
37 << "EST: " << yn(System::cpuSupports(CPUFeature::EST)) << std::endl
38 << std::endl
39
40 << "Memory management:" << std::endl
41 << "------------------" << std::endl
42 << "Total physical memory: " << System::physicalMemory() / 1024 / 1024 << " MBytes" << std::endl
43 << " available: " << System::availablePhysicalMemory() / 1024 / 1024 << " MBytes" << std::endl
44 << " used by process: " << System::memoryUsedByProcess() / 1024 << " KBytes" << std::endl
45#if defined(OGDF_SYSTEM_WINDOWS) || defined(__CYGWIN__)
46 << " peak amount: " << System::peakMemoryUsedByProcess() / 1024 << " KBytes" << std::endl
47#endif
48 << std::endl
49 << "allocated by malloc: " << System::memoryAllocatedByMalloc() / 1024 << " KBytes" << std::endl
50 << " in freelist: " << System::memoryInFreelistOfMalloc() / 1024 << " KBytes" << std::endl
51 << std::endl
52 << "allocated by OGDF: " << System::memoryAllocatedByMemoryManager() / 1024 << " KBytes" << std::endl
53 << " in global freelist: " << System::memoryInGlobalFreeListOfMemoryManager() / 1024 << " KBytes" << std::endl
54 << " in thread freelist: " << System::memoryInThreadFreeListOfMemoryManager() / 1024 << " KBytes" << std::endl;
55
56 return 0;
57}
System.h
Decalration of System class which provides unified access to system information.
basic.h
Basic declarations, included by all source files.
ogdf::System::memoryInGlobalFreeListOfMemoryManager
static size_t memoryInGlobalFreeListOfMemoryManager()
Returns the amount of memory (in bytes) contained in the global free list of OGDF's memory manager.
ogdf::System::memoryAllocatedByMalloc
static size_t memoryAllocatedByMalloc()
Returns the amount of memory (in bytes) allocated on the heap (e.g., with malloc).
ogdf::System::peakMemoryUsedByProcess
static size_t peakMemoryUsedByProcess()
Returns the maximal amount of memory (in bytes) used by the process (Windows/Cygwin only).
ogdf::System::memoryUsedByProcess
static size_t memoryUsedByProcess()
Returns the amount of memory (in bytes) allocated by the process.
ogdf::System::numberOfProcessors
static int numberOfProcessors()
Returns the number of processors (cores) available on the current system.
Definition System.h:273
ogdf::System::memoryInThreadFreeListOfMemoryManager
static size_t memoryInThreadFreeListOfMemoryManager()
Returns the amount of memory (in bytes) contained in the thread's free list of OGDF's memory manager.
ogdf::System::cacheLineBytes
static int cacheLineBytes()
Returns the number of bytes in a cache line.
Definition System.h:270
ogdf::System::memoryAllocatedByMemoryManager
static size_t memoryAllocatedByMemoryManager()
Returns the amount of memory (in bytes) allocated by OGDF's memory manager.
ogdf::System::memoryInFreelistOfMalloc
static size_t memoryInFreelistOfMalloc()
Returns the amount of memory (in bytes) contained in free chunks on the heap.
ogdf::System::availablePhysicalMemory
static long long availablePhysicalMemory()
Returns the size of available (free) physical memory (in bytes).
ogdf::System::cpuSupports
static bool cpuSupports(CPUFeature feature)
Returns true if the CPU supports feature.
Definition System.h:262
ogdf::System::physicalMemory
static long long physicalMemory()
Returns the total size of physical memory (in bytes).
ogdf::System::cacheSizeKBytes
static int cacheSizeKBytes()
Returns the L2-cache size (in KBytes).
Definition System.h:267
ogdf
The namespace for all OGDF objects.
Definition AugmentationModule.h:36
yn
const char * yn(bool b)
Definition system-info.cpp:6
main
int main()
Definition system-info.cpp:11