Variable to blob blob to document done fast as possible from 4D Chip
> On Jan 6, 2020, at 10:50 AM, Kirk Brooks via 4D_Tech > <[email protected]> wrote: > >> I agree with Chuck here - writing a line at a time is slow. It's very >> secure though. So it's good if you may crash - whatever has already been >> written stays written to disk. But otherwise better to buffer some and then >> write. > > I think that depends on whether it’s better to have partial data in > the file than correct data. If writing partial data will cause the > consumer of that text file to generate incorrect results or crash, > then it’s better to make sure it’s all or nothing, typically using an > atomic write mechanism like writing to a temp file, and when that’s > completed successfully, moving the temp file to the destination path. > > If performance is important, concatenating text 200K times is almost > definitely the wrong way, and the best way depends on what version of > 4D you’re using, the total size of the text, how fast is fast enough, > and possibly whether you’re writing to SSD or spinning hard drive. > > Jim Crate > > ********************************************************************** > 4D Internet Users Group (4D iNUG) > Archive: http://lists.4d.com/archives.html > Options: https://lists.4d.com/mailman/options/4d_tech > Unsub: mailto:[email protected] > ********************************************************************** ------------ Hell is other people Jean-Paul Sartre ********************************************************************** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:[email protected] **********************************************************************
