monitoring ruby app memory usage with passenger-recycler (was: Cannot require library for passenger in ruby)

[Karli Sjöberg]

On Thu, 2018-02-22 at 18:28 +0000, Marcin Cieslak wrote:
> On Thu, 22 Feb 2018, Karli Sjöberg wrote:
> 
> > 
> > > 
> > > How do I interpret the output of 'procstat -v <pid>' though? Can
> > > I
> > > sum
> > > up all of the RES or PRES numbers to get the total virtual memory
> > > that
> > > this process is consuming?
> > I hacked at it a bit and came up with an updated patch that
> > includes
> > the changes you made, plus my own.
> > 
> > Since "private dirty RSS" isn´t available, I´ve used "maximum RSS"
> > from
> > 'procstat -r <pid>', which is far from perfect, but it´s better
> > than
> > nothing. It now runs and does what you´d expect :)
> > 
> > I have attached it to this email.
> Thanks! Now we should try to integrate it into the passenger itself
> :)

No it´s just 'foreman_maintain' that needs fixing. I´m actually d
oing the git dance right now getting it accepted upstream :)

https://github.com/theforeman/foreman_maintain/pull/146

/K

> 
> I think you might be looking for "private resident pages" (PRES),
> but I am not sure. 
> 
> For your particular problem I would log procstat -v output in its
> entirety
> at regular intervals and see where the memory grows.
> 
> Happy you got there somehow :)
> 
> Marcin