A couple of questions about SSDs

RW rwmaillists at googlemail.com
Wed Oct 14 14:27:04 UTC 2020

On Wed, 14 Oct 2020 11:36:35 +0200
Polytropon wrote:

> > Is anyone using Poudriere on SSDs? Are there any measures of the
> > impact on wear?  
> No, I'm still using rotating rust for that. ;-)
> But you're absolutely thinking into the right direction:
> Running poudriere causes a lot of writes, it's not just
> limited to swap (which gets activated only if RAM is full).
> During ports building, lots of files are being written,
> and _that_ probably is the significant question here.

For any port building I do I have the work directory on tmpfs backed by
swap.  With enough memory this eliminates the non-essential writes to
the drive leaving just the install or package writes.

I don't know whether it's sensible to do this with poudiere. I gather
it relies on ZFS snapshots for efficiency. 

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