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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.
Old

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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Views 234 Comments 0 the dsc is offline
Old

Interesting "ask ubuntu" message related to swappiness tweaks

Posted 07-09-2014 at 10:06 PM by the dsc (linux-related notes)

http://askubuntu.com/questions/18421.../184221#184221

Quote:

Why most people recommend to reduce swappiness to 10-20?
Because most believe that swapping = bad and that if you don't reduce swappiness, the system will swap when it really doesn't need to. Neither of those are really true. People associate swapping with times where their system is getting bogged down - however, it's mostly swapping because the system
...
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Old

Interesting blog post about zswap functionality

Posted 06-25-2014 at 04:31 PM by the dsc (linux-related notes)
Tags ram, swap, zswap

Zswap is basically like a "fake swap partition" inside the RAM itself, but instead of just "moving" things from one place to another in the RAM, these things are compacted, instead of being written to the actual swap partition, on the HDD. Or so I understand. It then squeezes more out of the RAM than with non-compressed use, at some cost of CPU due to the compression/uncompressions, and monitoring, but sparing access to the swap partition on the HDD.

https://www.ibm.com/developerworks/c...ality7?lang=en
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