TLDR use calloc instead of malloc
Doesn’t that make it slower because it needs to zero out all the bytes first?
My understanding is that it’s only slightly slower: the OS maintains a pool of zeroed pages anyway, so it’s not like your program has to iterate over all the addresses and write to them.
But it’s been a long time since I’ve done any C/C++ so I could be wrong.
the OS maintains a pool of zeroed pages
TIL, I didn’t know that.
Oh shit
Hey Mongo, store this stuff; trust me it’s 1 MB. In case it turns out it is not, just give me 1 MB worth of your data.
Thank you very much.
MongoDB: I’m gonna need all your memory.
if /dev/null is fast and web-scale, i will use it!
You start it and it scales right up
I want to thank this guy for dropping this in Christmas.
Luckily my mongo ports are hidden from the Internet, as everyone else’s should be, so it will survive until Monday when I can upgrade.
It is fixed as of writing, but some EOL versions (3.6, 4.0, 4.2) will not get it.
You probably are already up to date.
I know my MongoDB updated around the 17th.
