Really bad at handling large files

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Opening a 25k line file (some bindings I generated) is taking up 77% of my 32gbs of ram, something BAD, maybe even devious some would say is happening

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for example

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I get that a 25k line file is huge but it shouldnt be smashing this much memory

[danielmaciel]

I also see very high memory usage from Jails in normal circumstances.

[SogoCZE]

Overall, we currently do not optimize for optimal memory usage. I solve most of the memory leaks in the latest updates, so that should help.