Big memory usage improvements

[Nate Finch]

FYI, this tools looks promising.  Probably worth checking out to see if
it'll help us track down those memory leaks.
https://stackimpact.com/blog/memory-leak-detection-in-production-go-applications/

On Thu, Oct 13, 2016 at 8:02 AM Christian Muirhead <
christian.muirhead at canonical.com> wrote:

> Oops, meant to reply-all.
>
> ---------- Forwarded message ---------
> From: Christian Muirhead <christian.muirhead at canonical.com>
> Date: Thu, 13 Oct 2016, 09:26
> Subject: Re: Big memory usage improvements
> To: Katherine Cox-Buday <katherine.cox-buday at canonical.com>
>
>
>
>
> On Wed, 12 Oct 2016, 22:36 Katherine Cox-Buday, <
> katherine.cox-buday at canonical.com> wrote:
>
> Awesome, good work, Christian!
>
>
> :)
> Thanks for your help with the StatePool!
>
>
> Not to detract from this fantastic news, but it's still worrisome that an
> idle Juju seems to have a memory which is growing linearly (before picture
> looked like the beginning of an exponential curve?). Do we feel this is
> memory which will at some point be GCed?
>
>
> No, I think there's still a leak there. The other ones I fixed were
> goroutine leaks which were a bit easier to track down. There aren't any
> goroutines escaping now so I'll need to switch back to looking at heap
> dumps to find more.
>
> Cheers,
> Christian
>
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