My computer locked up several times, and a mistake in editing system files can make a reinstall of the OS necessary which, coincidentally, I had to do recently, and I was surprised how little impact an "archive and install" had. Also, you need to be comfortable editing system files under sudo in the Terminal.
When applications and data need to be swapped out of RAM because the RAM is required for something else, the data is written to these files. Later, when the old RAM content is needed again, it's read back in.
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There are some very old articles floating around that explain how to move the location of these swap files to another drive or partition to increase speed, but as I said, these are old, and there's an additional problem: In fact, I haven't been able to make a script that is executed late enough in the boot process to make this happen automatically.
That said, it's not too hard to do manually. This requires keeping the system from initializing the virtual memory pager during the boot process.
Increase my RAM and Storage with external USB Thumb Drive or SDHC Card | MacRumors Forums
Then, at your convenience, you can start the daemon manually:. The -E flag makes sure your swap files are encrypted so that the contents of the system's memory can't be inspected by someone who swipes the flash drive—I tested without encryption, though. You can check whether the daemon runs and uses the right directory with:. After all of this, I started up pretty much all of my applications, and the system seemed to be more responsive than it is under such a load without this hack.
Increase my RAM and Storage with external USB Thumb Drive or SDHC Card
However, after a few minutes, the system froze. After 10 seconds or so, it continued. This kept happening regularly. I then wrote a little test program that asks the system for a certain amount of memory and then proceeds to write data into that memory.
Otherwise, ReadyBoost comes ready to use in later versions of Windows. It only caches data to the flash drive, but does not extend memory. It helps speed up the load times of applications, much like SuperFetch does. It should help speed up program load times in almost any computer, but sometimes it is not that noticeable.
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I would look into reducing memory usage by disabling unused and unnecessary features and functions. There are plenty of tweaks, tips, and tricks to try in order to speed up your system, but as far as gaining more memory, only adding RAM would help.
Living dangerously: Moving your Mac’s swap files to a USB flash drive
It creates a scheduled task to automatically clean up used memory at 15 minute intervals you can adjust the time and other settings, but the default is recommended. Follow the prompts if any , and then click on Finish.
If you would like to change the Task Schedule, click on Edit instead, and then install the task schedule default works fine and is recommended. You should notice a little to possibly moderate boost in performance, but it can only do so much, so don't expect turbo boost in a low performing computer. If you would like more suggestions to getting more performance at a cost of visual appearance and some functionality , let us know.