int _tmain(int argc, _TCHAR* argv[])
{
// Read(), Write()
_ASSERTE(create_very_big_file(L"big.txt", 5120)); // 5120mb == 5GB
StopWatch sw;
sw.Start();
_ASSERTE(file_copy_using_read_write(L"big.txt", L"big2.txt"));
sw.Stop();
print("[info] Read_Write : time elapsed = %f\n", sw.GetDurationSecond());
// Memory Mapeed IO
StopWatch sw2;
sw2.Start();
_ASSERTE(USER_file_copy_using_memory_map(L"big.txt", L"big3.txt"));
sw2.Stop();
print("[info] Memory Mapped : time elapsed = %f\n", sw2.GetDurationSecond());
DeleteFileW(L"big.txt");
DeleteFileW(L"big2.txt");
DeleteFileW(L"big3.txt");
return 0;
}
bool USER_file_copy_using_memory_map( _In_ const wchar_t* src_file, _In_ const wchar_t* dst_file )
{
FileIoHelper SRC_FHELP;
FileIoHelper DST_FHELP;
LARGE_INTEGER offset = { 0, };
LARGE_INTEGER * filesize = NULL;
DWORD size = 1024 * 1024;
UCHAR* p = NULL;
PUCHAR Buffer = (PUCHAR)malloc((uint64_t)(1024 * 1024));
SRC_FHELP.FIOpenForRead(src_file);
filesize = SRC_FHELP.FileSize();
SRC_FHELP.FIOClose();
_ASSERTE(create_very_big_file(dst_file, filesize->QuadPart / (1024 * 1024)));
SRC_FHELP.FIOpenForRead(src_file);
DST_FHELP.FIOpenForRead(dst_file);
while (offset.QuadPart < filesize->QuadPart)
{
SRC_FHELP.FIOReadFromFile(offset, size, Buffer);
DST_FHELP.FIOWriteToFile(offset, size, Buffer);
offset.QuadPart += size;
}
DST_FHELP.FIOClose();
SRC_FHELP.FIOClose();
return true;
}
int _tmain(int argc, _TCHAR* argv[])
{
uint32_t uSize = 5000; // 4gb 이상 가능
LARGE_INTEGER Size; //
DWORD bufSize = 2048; // 32bit가 4gb 인데 실질적으로 2gb 사용 가능
// 그러니 최대인 2048M 씩 할당
LARGE_INTEGER offset; // 크기
offset.QuadPart = (LONGLONG)0;
StopWatch sw1, sw2;
Size.QuadPart = (LONGLONG)(1024 * 1024) * (LONGLONG)uSize;;
_ASSERTE(create_very_big_file(L"big.txt", uSize));
sw1.Start();
_ASSERTE(file_copy_using_read_write(L"big.txt", L"big2.txt"));
sw1.Stop();
print("info] time elapsed = %f", sw1.GetDurationSecond());
PUCHAR buf = (PUCHAR)malloc(bufSize);
sw2.Start();
FileIoHelper Helper;
Helper.FIOpenForRead(L"big.txt");
Helper.FIOCreateFile(L"big3.txt", Size);
while (offset.QuadPart < Size.QuadPart)
{
if ((Size.QuadPart - offset.QuadPart) >(LONGLONG)bufSize)
bufSize = 2048;
else
bufSize = (DWORD)(Size.QuadPart - offset.QuadPart);
Helper.FIOReadFromFile(offset, bufSize, buf);
Helper.FIOWriteToFile(offset, bufSize, buf);
offset.QuadPart += (LONGLONG)bufSize;
}
sw2.Stop();
print("info] time elapsed = %f", sw2.GetDurationSecond());
return 0;
}
int _tmain(int argc, _TCHAR* argv[])
{
uint32_t goalsize = 6144; // 6GB
_ASSERTE(create_very_big_file(L"big.txt",goalsize));//목표크기 6GB만큼 파일 생성
StopWatch sw;
sw.Start();
_ASSERTE(file_copy_using_read_write(L"big.txt", L"big2.txt"));
sw.Stop();
print("info] (Read Write) time elapsed = %f", sw.GetDurationSecond());
LARGE_INTEGER _Filesize;
_Filesize.QuadPart = (LONGLONG)(1024*1024)*(LONGLONG)goalsize;//파일의 크기 6GB 설정하기위해 LARGE_INTEGER
DWORD bufS = 4096; // read.write에서 buf가 4096이므로 4096설정
PUCHAR buf = (PUCHAR)malloc(bufS);
LARGE_INTEGER _Offset;
_Offset.QuadPart = 0; //파일을 옮겨주는 계산을 하는데 사용한다.
StopWatch sw2;
sw2.Start();
FileIoHelper FileHelp;
FileHelp.FIOpenForRead(L"big.txt");
FileHelp.FIOCreateFile(L"big3.txt", _Filesize);
while(_Filesize.QuadPart > _Offset.QuadPart)
{
if((_Filesize.QuadPart - _Offset.QuadPart) > (LONGLONG)bufS)
bufS = 4096;
else
bufS = (DWORD)(_Filesize.QuadPart - _Offset.QuadPart);
FileHelp.FIOReadFromFile(_Offset, bufS, buf);
FileHelp.FIOWriteToFile(_Offset, bufS, buf);
_Offset.QuadPart += (LONGLONG)bufS;
}
sw2.Stop();
print("info] (Memory Map) time elapsed = %f", sw2.GetDurationSecond());
return 0;
}
int _tmain(int argc, _TCHAR* argv[])
{
printf("<< Small File Create, Copy! (1GB) >>\n\n");
LARGE_INTEGER fileSize;
fileSize.QuadPart = 1024*1024*1024;
_ASSERTE(create_very_big_file(L"small.txt", 512));
StopWatch sw1;
sw1.Start();
_ASSERTE(file_copy_using_read_write(L"small.txt", L"small1.txt"));
sw1.Stop();
print("[*] read & write time elapsed = %f\n", sw1.GetDurationSecond());
StopWatch sw2;
sw2.Start();
_ASSERTE(file_copy_using_memory_map(L"small.txt", L"small2.txt"));
sw2.Stop();
print("[*] mmio time elapsed = %f\n", sw2.GetDurationSecond());
printf("\nBig File Create & Copy Start!\n\n");
_sleep(2);
printf("<< Big File Create, Copy! (10GB) >>\n");
StopWatch sw3;
sw3.Start();
_ASSERTE(file_copy_using_read_write(L"big.txt", L"big1.txt"));
sw3.Stop();
print("[*] read & write time elapsed = %f\n", sw3.GetDurationSecond());
/*
LARGE_INTEGER offset;
offset.QuadPart=512;
_ASSERTE(create_very_big_file(L"big.txt", 10*1024));
FileIoHelper *a = new FileIoHelper;
LARGE_INTEGER msize;
msize.QuadPart = 1024*1024*1024*10;
StopWatch sw4;
sw4.Start();
_ASSERTE(file_copy_using_memory_map(L"big.txt", L"big1.txt"));
a->FIOpenForRead(L"big.txt");
a->FIOCreateFile(L"big2.txt", msize);
sw4.Stop();
*/
return 0;
}
int _tmain(int argc, _TCHAR* argv[])
{
LARGE_INTEGER fileSize;
fileSize.QuadPart = 10240000000;
_ASSERTE(create_very_big_file(L"big.txt", 4));
StopWatch sw1;
sw1.Start();
_ASSERTE(file_copy_using_read_write(L"big.txt", L"big1.txt"));
sw1.Stop();
print("info] time elapsed = %f", sw1.GetDurationSecond());
StopWatch sw2;
sw2.Start();
_ASSERTE(file_copy_using_memory_map(L"big.txt", L"big2.txt"));
sw2.Stop();
print("info] time elapsed = %f", sw2.GetDurationMilliSecond());
return 0;
}
int _tmain(int argc, _TCHAR* argv[])
{
_ASSERTE(create_very_big_file(L"big.txt", 1));
StopWatch sw2;
sw2.Start();
_ASSERTE(file_copy_using_memory_map(L"big.txt", L"big3.txt"));
sw2.Stop();
print("info] time elapsed = %f", sw2.GetDurationSecond());
StopWatch sw;
sw.Start();
_ASSERTE(file_copy_using_read_write(L"big.txt", L"big2.txt"));
sw.Stop();
print("info] time elapsed = %f", sw.GetDurationSecond());
return 0;
}
int main(){
StopWatch sw = StopWatch();
create_very_big_file(L"make.bin", 4096);
//create_very_big_file 함수 내부에서 LARGE_INTEGER 다룰때 LL 추가
sw.Start();
LARGE_INTEGER file_size_read = { 0 };
LARGE_INTEGER file_offset = { 0 };
unsigned char buf[BUF_SIZE];
FileIoHelper Fi_read= FileIoHelper();
FileIoHelper Fi_write = FileIoHelper();
Fi_read.FIOpenForRead(L"make.bin");
file_size_read.QuadPart = (1024 * 1024) * 4096LL;
Fi_write.FIOCreateFile(L"copy.bin", file_size_read);
while (DT_SUCCEEDED(Fi_read.FIOReadFromFile(file_offset, BUF_SIZE, buf))){
Fi_write.FIOWriteToFile(file_offset, BUF_SIZE, buf);
file_offset.QuadPart += BUF_SIZE;
//printf("%d", file_offset.QuadPart);
}
Fi_read.FIOClose();
Fi_write.FIOClose();
sw.Stop();
printf("using memory map via FileIoHelperClass %f , bufsize = %d \n\n", sw.GetDurationSecond(),BUF_SIZE);
sw.Start();
file_copy_using_read_write(L"make.bin", L"copy.bin2");
sw.Stop();
printf("using read write %f\n", sw.GetDurationSecond());
system("pause");
return 0;
}
int _tmain(int argc, _TCHAR* argv[])
{
/*
_ASSERTE(create_very_big_file(L"big.txt", 5000));
StopWatch sw2;
sw2.Start();
_ASSERTE(file_copy_using_memory_map(L"big.txt", L"big3.txt"));
sw2.Stop();
print("info] time elapsed = %f", sw2.GetDurationSecond());
StopWatch sw;
sw.Start();
_ASSERTE(file_copy_using_read_write(L"big.txt", L"big4.txt"));
sw.Stop();
print("info] time elapsed = %f", sw.GetDurationSecond());
*/
FileIoHelper Helper;
uint64_t size=5000;
LARGE_INTEGER file_size;
LARGE_INTEGER offset;
offset.QuadPart = 0;
DWORD bufsize = 2048*1024*1024;
PUCHAR buf = (PUCHAR)malloc(bufsize);
file_size.QuadPart = (1024 * 1024) * size;
_ASSERTE(create_very_big_file(L"big.txt", size));
StopWatch sw2;
sw2.Start();
Helper.FIOpenForRead(L"big.txt");
Helper.FIOCreateFile(L"big2.txt", file_size);
while (offset.QuadPart < file_size.QuadPart) {
if ((file_size.QuadPart - offset.QuadPart) >(LONGLONG)bufsize)
{
bufsize = 2048*1024*1024;
}
else {
bufsize = (DWORD)(file_size.QuadPart - offset.QuadPart);
}
Helper.FIOReadFromFile(offset, bufsize, buf);
Helper.FIOWriteToFile(offset, bufsize, buf);
offset.QuadPart += (LONGLONG)bufsize;
}
sw2.Stop();
print("info] time elapsed = %f", sw2.GetDurationSecond());
StopWatch sw;
sw.Start();
_ASSERTE(file_copy_using_read_write(L"big.txt", L"big3.txt"));
sw.Stop();
print("info] time elapsed = %f", sw.GetDurationSecond());
_getwch();
return 0;
}