The disadvantages are the same as for reading. It does not use DirectI/O, if the filesize is under the specified size(KB) OS is likely to be slow/heavy, it can not be recommended. If destination drive are 512B sector HDD that has mounted 4KB sector HDD, please check this. ( If it is specified "1", it will not be used overlapped I/O) I/O performance(especially network drive) is improved by using overlapped ReadFile/WriteFile I/O. ( Buffer size must be at least twice the Max I/O Size) "I/O unit" * "OverLap I/O Num" is the (effective) Max I/O size for OS.ġMB I/O unit size is the best performance for many environments, especially if network drive is used. Parallel Read/Write request unit size for OS.
Specify main buffer size for reading/writing. W|D|h|m|s means Weeks/Days/hours/minutes/seconds. Specify "YYYYMMDD"(year/month/day/hours/minutes/seconds). However, '\' in character class(), it means escape character. In addition, the end of '\' means "This is a filter item for directory". The middle of '\' is separator of path items. '\' as Start character means Forward match filter. If Source is either C:\src\, C:\src\file.txt or C:\src\dir*, the start point(beginning) of the filter check will be C:\src\
different hierarchy.Ĭ:\dir\aaa\subdir2\file.txt. This mode is head -> tail matching policy.Ĭ:\dir\aaa\subdir2\xxx\. If the start character of Include/Exclude string items is '\', it will be Forward match filter.
Matched directories and all under them will be copied. If the first character of Include/Exclude string items is not '\', it will be Relative path filter.
0 kommentar(er)
