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From: Jolly Roger <jollyroger@pobox.com>
Newsgroups: comp.sys.mac.misc
Subject: Re: How much HD space needed for memory swapping
Date: 17 Jan 2025 00:49:03 GMT
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On 2025-01-16, Dudley Brooks <dbrooks@runforyourlife.org> wrote:
> On 1/16/25 11:16 AM, Jolly Roger wrote:
>
>> On 2025-01-16, Dudley Brooks <dbrooks@runforyourlife.org> wrote:
>>
>>> (I hope that "memory swapping" is the correct term.)
>>>
>>> Model:    Late 2013 Macbook Pro
>>> OS:    OS X 10.13.6 High Sierra
>>> HD:    1 TB, 954.34 GB used, 44.27 GB available
>>> CPU:    2.6 GHz Intel
>>> Mem:    16 GB 1600 MHz DDR3
>>>
>>> As you see, my HD is very full.
>>>
>>> As it fills up, I have seen a big dropoff in function -- programs load
>>> much more slowly, can only have a few programs open at the same time,
>>> windows don't open at full size, etc.
>>>
>>> I assume this is because of not enough swap space on the HD.
>>>
>>> What is the recommended amount of HD space to keep free for good
>>> performance?
>> 
>> That would depend on how much RAM you actually use, but the general
>> recommendation is to keep 10-20% free on the startup drive, depending on
>> how much your system swaps due to low memory conditions. You're way
>> short of that 100 GB (10%).
>
> OK, thanks!  Now I know what to aim for.  Luckily, it will not be too 
> difficult to accomplish -- loads of stuff I can get rid of.

🙂👍🏼

> Should I defrag afterwards?  Or does the OS (10.13.6 High Sierra) make 
> it somehow unnecessarry

That's not something you need to do with flash storage (SSDs).

-- 
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JR