[luatex] Node usage statistics

[Hans Hagen]

On 2/11/2015 3:47 PM, Patrick Gundlach wrote:
>>
>>
>> yes, so for instance you can ask for them just before or after a shipout (context has some mechanisms for tracing usage over a whole document but i must admit that i seldom use that as node mem usage is normally quite ok unless one leaks nodes)
>
> I have few points where I leak nodes, and I'd like to find out how much I save from removing the leak... Some VPS servers have very limited memory.

Keep in mind that some nodes are cached, like attribute nodes and glue 
(spec) nodes or relate to persistent data (can be boxes of glue 
registers). So one never gets zero usage.

Hans


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