Agreed - most people don't realise, but even if you don't have any swap, all your executable code is effectively treated exactly the same way as swap (except it

Agreed - most people don't realise, but even if you don't have any swap, all your executable code is effectively treated exactly the same way as swap (except it's read-only and needed more often). I'd love a setting on Linux to tell it to treat executable pages memory-mapped from disc as Really Important and never evict them. It'd have to come with a suitable warning that if you set this then you get exactly what you deserve, but TBH it probably is what most people actually think is happening already and want.