Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file
- Date: Sat, 06 Apr 2019 17:44:19 -0400
- From: Stefan Monnier <monnier@xxxxxxxxxxxxxxxx>
- Subject: Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file
> Anyway, I edit large files many times a day and try to save it at each
> edit or partial edit (at a guess, one particular file is around 100
> MB, and I may save it 200 or more times a day).
So, we're looking in the order of 100GB / day.
> 1. I'd like to count how many times a day I actually save the file. (One
> approach (at least I think I could do this) could be to write a sort of shell
> script wrapper and always initiate saves using the shell script, but I was
> hoping there was more of pre-built solution.)
It likely depends on the tool you're using to edit that file (in many
tools you can tweak the tool to keep track of that info).
> 2. A lot of my editing involves editing near (but not at) the end of
> a file. I assume (I know) that the software that saves the file is
> smart enough not to rewrite the entire file but instead to preserve
> the beginning of the file and just rewrite the changed part of the
> file (or from there to the end of the file).
Not completely sure if "you assume" or "you know" it to be the case.
Especially given that you then add:
> Can anyone confirm that,
which suggest you're not really sure (unless it referred to something else).