LinuxQuestions.org - linux-related notes

Just annotations of little "how to's", so I know I can find how to do something I've already done when I need to do it again, in case I don't remember anymore, which is not unlikely. Hopefully they can be useful to others, but I can't guarantee that it will work, or that it won't even make things worse.

tmpfs ~/.cache cleaner daemon-script idea, to clean RAM space while trying to minimize SSD writes

Posted 10-27-2020 at 08:20 AM by the dsc (linux-related notes)
Updated 11-01-2020 at 04:45 AM by the dsc (maybe grammar or worse, maybe style)

Tags hack, script, ssd, tmpfs

In line with the idea of reducing how much it's written on SSD, some people suggest using tmpfs for lots of things, one of them can be the ~/.cache directory. Which must be implemented in a per-user basis or with some pre-mount script that would do such tmpfs mounts before each user login. But regardless, the point is that they may spare the SSD, but not the RAM, obviously. If you quit a cache-heavy program, its cache would still be there, leaving other programs you're running with less RAM to use....

the dsc

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Miscellaneous links and things that helped me on this new install, with SSD issues, systemd, and removable JFS hdd issues, and whatever else

Posted 10-25-2020 at 09:15 AM by the dsc (linux-related notes)
Updated 10-27-2020 at 11:56 PM by the dsc (addition)

Tags jfs, rc.local, ssd, systemd, trim

"rc.local" doesn't run by default anymore, so:

https://www.troublenow.org/752/debian-10-add-rc-local/
https://www.linuxbabe.com/linux-serv...l-with-systemd

Which in turn may be useful or necessary to have /var/cache/apt/archives as a tmpfs, with this:

Code:

mkdir -p /var/cache/apt/partial 
mkdir -p /var/cache/apt/archives 
mkdir -p /var/cache/apt/archives/partial 

chown -R _apt /var/cache/apt

...

the dsc

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Note to myself, for whenever I get an SSD...

Posted 08-06-2014 at 11:36 PM by the dsc (linux-related notes)

Tags ssd, swap

If it would still apply for future technology...

Quote:

Current good quality SSDs have built-in mechanisms to level the wear on the whole device so that their lives are maximised, but for something like Swap the inherent nature of that requirement will significantly ratchet up the number of Write cycles on any drive that hosts it, and that is still something I want to avoid on my SSD.

In reality it may not be a factor, but I'd rather spend a few dollars on more RAM to reduce

...

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