Renaming (with 'mv') very large files is SLOW

Tue Feb 1 08:47:59 GMT 2022

Greetings, cygwin@kosowsky.org!
> I literally am typing something like:
> mv foo bar

> In Linux, that just edits the file system table & inode...

> UPDATE...
> I just tried a second 'mv' and it was near instantaneous.
> (and similarly with subsequent renaming of the same file)
> So perhaps not a 'Cygwin' thing but something going on within Windows.

> Could it be that the first 'mv' triggered an anti-virus read of the file since
> perhaps it detects it as a new/changed file?

> But if so, would 'mv' (under Task Manager) be showing the 100+ MB/s disk activity?

Install processmanager and check what actual activity is happening on that
file. Is it reading or writing? Who is doing that?
-- 
With best regards,
Andrey Repin
Tuesday, February 1, 2022 11:47:15
Sorry for my terrible english...