How to use trim command ?,Re: How to use trim command ?

[Poul-Henning Kamp]

--------
In message <CANCZdfqsVo_mk4TqJy8pmp+DQvDSg-cgwxM03+xgT5_Y+VKvnA at mail.gmail.com>, Warner Losh writes:
>On Sat, Dec 1, 2018 at 4:41 AM Masachika ISHIZUKA <ish at amail.plala.or.jp>
>wrote:

>>   I think 'fsck_ffs -E' is not suitable for daily midnight cron job.
>
>FreeBSD doesn't have an equivalent of a daemon that runs and trims blocks
>after a while of being idle (trimd on linux I think).

Why would you run 'fsck_ffs -E' in cron anyway ?

If the file-system is has TRIM enabled, it would be a no-op, unless
there are bugs in the fs ?

As for command name:  bio_delete(8) would be my suggestion, but I'm biased.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.