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Re: [LUG] SSD and Trim

 

On 25/06/14 13:44, Neil Winchurst wrote:

> OK, thanks. Will avoid the manual approach. So I could use the
> 'discard'  in fstab method. Or I could use a cron job. Does it matter
> which?


Just go with 'discard' (and optionally, 'noatime' as well as suggested
here) in the relevant fstab lines - it really is much easier, much more
reliable and doesn't rely on your machine actually being awake or even
on to run. Like automatically scheduled windows updates (that run by
default at 03:00, when nearly everyone's PCs are off), using some
half-arsed random cronjob to run fstrim is just stupid when your SSD
could be constantly looking after itself via discard.

If you're worried about wear and tear (don't be) also look at using RAM
via tmpfs, etc, to put as much volatile heavy use storage as possible:
like your browser profile for example. Additionally, if you have an
otherwise decently specced system with enough RAM (8Gb+) totally disable
swap as well, it's useless unless you're debugging and need to spool
crash dumps and the like to disk.

Cheers


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