Weird 'free' output

[Ori Idan]

Note that Linux tries to use available memory for cache, that is why free
memory seems small.

-- 
Ori Idan CEO Helicon Books
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On Tue, May 4, 2021 at 2:48 PM linux.il <linux.il at gmail.com> wrote:

> Omer, thank you!
> Is it related to the "Inactive" count from /proc/meminfo?
> I used to think that available=free+cache+buffers...
>
> On Tue, May 4, 2021 at 1:19 PM Omer Zak <w1 at zak.co.il> wrote:
>
>> From man free:
>>
>> available
>>               Estimation of how much memory is available for starting
>> new applications, without swapping. Unlike the data provided  by
>>               the  cache  or free fields, this field takes into account
>> page cache and also that not all reclaimable memory slabs will
>>               be reclaimed due to items being in use (MemAvailable in
>> /proc/meminfo, available on kernels 3.14,  emulated  on  kernels
>>               2.6.27+, otherwise the same as free)
>>
>>
>>
>> On Tue, 2021-05-04 at 13:07 +0300, linux.il wrote:
>> > "Available" output seems weird, or I'm missing something?
>> > Any ideas?
>> >
>> > TIA, Vitaly
>> >
>> > free -m
>> >               total        used        free      shared  buff/cache
>> > available
>> > Mem:          31654       29883         937           1         832
>> >     27675
>> > Swap:             0           0           0
>>
>>
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