Re: [go-nuts] go process memory limits and gurantees

[Aram Hăvărneanu]

On Sun, Aug 7, 2016 at 4:37 AM, gaurav  wrote:
> Please let me know if there is something I have missed to read regarding
> this or if there is already a way to achieve this?


There is not.

-- 
Aram Hăvărneanu

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[go-nuts] go process memory limits and gurantees

[gaurav]

Hi everyone,

I am a bit unclear about how to specify memory limits for Go processes and 
what can be assumed about the Garbage collection behavior when approaching 
such a memory limit. 

Specifically, I would want to be able to 'tell' a Go process to not use 
more than X GB of RAM and then expect that if ever the process 
panics/crashes due to lack of memory, then it can be assumed that there are 
enough live objects that account for entire of the 'permitted' X GB limit.

I understand the OS constructs can be used to limit process memory but that 
will probably not be sufficient  - as the process could have been killed by 
OS even though Go GC could have internally freed up memory and used that 
instead of asking OS for more.

I understand that fiddling with GOGC will make the GC more aggressive but 
it doesn't feel right to make this too aggressive to enforce the above 
desired behavior. Keeping it at default will probably only guarantee me 
that half the heap contains live/useful objects at any give time.

Please let me know if there is something I have missed to read regarding 
this or if there is already a way to achieve this?

--
cheers,
gaurav


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