Retropie Manager Memory Statistic Issue?

[daeks]

Pi Model or other hardware: 3B
Power Supply used: 2,5A
RetroPie Version Used (eg 3.6, 3.8.1, 4.1 - do not write latest): 4.1.x
Built From: Pre made SD Image on RetroPie website
How to replicate the problem: type free on ssh

I have checked the existing retropie manager for its basic functionallity and found one issue on the memory statistic: It indicates about 500 MB free ram, but running free results in different value

pi@retropie:~ $ free
             total       used       free     shared    buffers     cached
Mem:        752852     675172      77680      11456      83572     387148
-/+ buffers/cache:     204452     548400
Swap:       102396          0     102396

What is correct now?

[herb_fargus]

Not even going to begin to pretend to know what I'm talking about:

But seems there may be some variation in representation depending on how you define buffers and caches in the so called free space:

http://serverfault.com/questions/85470/meaning-of-the-buffers-cache-line-in-the-output-of-free

[daeks]

@herb_fargus so understanding that correctly (also thinking on java jvm) the first line indicates that 675172 bytes are allocated by OS, but only 204452 bytes are used as "-/+ buffers/cache". Thanks for the clarification :)

[herb_fargus]

I dont know much about diagnostics or what is technically considered "free" I suppose people define it differently.

It seems there is no shortage of raspberry pi dashboard projects:

Eg: https://github.com/matematik7/rpi-dashboard/blob/master/screenshots/memory.png