On Sun, Nov 9, 2014 at 11:47 PM, Balaganesh Krishnamoorthy
<[email protected]> wrote:
> http://i.stack.imgur.com/bb5C4.png
>
>
> Hi,
>
> I am having memory leak in my node application which i am running as a
> service. I took memory dump using heapdump node_module
> after that i put it on a chrome profiler module. but the problem is i
> cant understand memory dump information
>
> Please check the attachment. i will post more screenshot or memory dump
> file asap......
The shallow size is the size of the object itself, the retained size
is the shallow size + the size of all objects this object directly or
indirectly points to. Example:
var a = { /* empty */ };
var b = { a: a };
var c = { b: b };
The shallow size for all three is (for example) 24 bytes. The
retained size for |a| is its shallow size because it doesn't contain
references to other objects. For |b|, it's |a + b|'s shallow size and
for |c|, it's |a + b + c|.
The summary view gives you a breakdown on a per-constructor basis
(i.e. the class name.)
The comparison view lets you see heap growth (or shrinkage, as the
case may be) between snapshots. Note that you need node-heapdump
v0.3.0 for that to work properly.
The comparison view is indirectly also part of the summary view: you
can get a summary of objects created between two snapshots.
The containment view is a breakdown of allocations per subsystem.
It's not that interesting for node.js applications, although it can
give you a quick estimate of how much memory is locked up in buffer
objects.
Hope that helps. I will add the above to the README someday. :-)
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