打开CloudDrive 挂载的txt文件速度非常慢甚至会卡死

[vvyoko]

notepad2 和 notepad3 打开clouddrive2挂载的txt非常非常慢甚至会卡死
打开一个不到1kb的文件需要耗时10秒+
但是vscode和Sublime Text, notepad++都没问题

然后用alist测试了下,上面所有软件打开txt都没问题...

我准备两边都反馈下,不太确定是谁的问题

[zufuliu]

Here is read file code:

notepad2/src/Edit.c

Lines 968 to 1041 in 226180b

	bool EditLoadFile(LPWSTR pszFile, EditFileIOStatus *status) {
	HANDLE hFile = CreateFile(pszFile,
	GENERIC_READ,
	FILE_SHARE_READ | FILE_SHARE_WRITE,
	NULL, OPEN_EXISTING,
	FILE_ATTRIBUTE_NORMAL,
	NULL);
	dwLastIOError = GetLastError();
	if (hFile == INVALID_HANDLE_VALUE) {
	return false;
	}
	LARGE_INTEGER fileSize;
	fileSize.QuadPart = 0;
	if (!GetFileSizeEx(hFile, &fileSize)) {
	dwLastIOError = GetLastError();
	CloseHandle(hFile);
	return false;
	}
	// display real path name
	PathGetRealPath(hFile, pszFile, pszFile);
	// Check if a warning message should be displayed for large files
	#if defined(_WIN64)
	// less than 1/2 available physical memory:
	// 1. Buffers we allocated below or when saving file, depends on encoding.
	// 2. Scintilla's content buffer and style buffer, see CellBuffer class.
	// The style buffer is disabled when using SCLEX_NULL (Text File, 2nd Text File, ANSI Art).
	// i.e. when default scheme is Text File or 2nd Text File, memory required to load the file
	// is about fileSize*2, buffers we allocated below can be reused by system to served
	// as Scintilla's style buffer when calling SciCall_SetLexer() inside Style_SetLexer().
	// 3. Extra memory when moving gaps on editing, it may require more than 2/3 physical memory.
	// large file TODO: https://github.com/zufuliu/notepad2/issues/125
	// [ ] [> 4 GiB] use SetFilePointerEx() and ReadFile()/WriteFile() to read/write file.
	// [-] [> 2 GiB] fix encoding conversion with MultiByteToWideChar() and WideCharToMultiByte().
	LONGLONG maxFileSize = INT64_C(4) << 30;
	#else
	// 2 GiB: ptrdiff_t / Sci_Position used in Scintilla
	LONGLONG maxFileSize = INT64_C(2) << 30;
	#endif
	MEMORYSTATUSEX statex;
	statex.dwLength = sizeof(statex);
	if (GlobalMemoryStatusEx(&statex)) {
	const ULONGLONG maxMem = statex.ullTotalPhys/2U;
	if (maxMem < (ULONGLONG)maxFileSize) {
	maxFileSize = (LONGLONG)maxMem;
	}
	} else {
	dwLastIOError = GetLastError();
	}
	if (fileSize.QuadPart > maxFileSize) {
	CloseHandle(hFile);
	status->bFileTooBig = true;
	WCHAR tchDocSize[32];
	WCHAR tchMaxSize[32];
	WCHAR tchDocBytes[32];
	WCHAR tchMaxBytes[32];
	StrFormatByteSize(fileSize.QuadPart, tchDocSize, COUNTOF(tchDocSize));
	StrFormatByteSize(maxFileSize, tchMaxSize, COUNTOF(tchMaxSize));
	FormatNumber64(tchDocBytes, fileSize.QuadPart);
	FormatNumber64(tchMaxBytes, maxFileSize);
	MsgBoxWarn(MB_OK, IDS_WARNLOADBIGFILE, pszFile, tchDocSize, tchDocBytes, tchMaxSize, tchMaxBytes);
	return false;
	}
	char *lpData = (char *)NP2HeapAlloc((SIZE_T)(fileSize.QuadPart) + NP2_ENCODING_DETECTION_PADDING);
	DWORD cbData = 0;
	const BOOL bReadSuccess = ReadFile(hFile, lpData, (DWORD)(fileSize.QuadPart), &cbData, NULL);
	dwLastIOError = GetLastError();
	CloseHandle(hFile);

[vvyoko]

CloudDrive2回复了
说让挂载成本地盘模式,怀疑是notepad2处理网络的问题
我挂成本地盘后正常了,至此我的问题已经解决了

另外反馈下,
我看了下它分成本地盘和网络盘两种模式
在本地盘的路径是普通的 X:\Aliyun\1\1.tx
在网络盘路径是这样的 \\CloudDirve\X\Aliyun\1\1.tx
出现问题的是网络路径

但是目前我也找不到其他的类似这样的网络路径,也就不测试了

[zufuliu]

\\CloudDirve\X\Aliyun\1\1.tx is treated as Windows share (Samba) path.