Unable to build `LocustDB` on Mac OS X about locustdb HOT 4 CLOSED

We could try switching the allocator back to jemalloc as per: https://doc.rust-lang.org/1.9.0/book/custom-allocators.html

from locustdb.

I had a go at it and it doesn't seem to be super easy to make this work, might be better to just remove the Heapsize dependency entirely. The only use of it right now is to get (approximate) size of data stored in memory, which is dominated by the DataSection structs in Column. Just estimating their memory usage with Vec::capacity() * std::mem::size_of should work well enough. It wouldn't account for allocator overhead, but it was never quite clear to me what exactly the heapsize crate did in that regard anyway.

from locustdb.

Yep, I have tried many days but eventually failed. heapsize has hard-coded link name on Mac OS X(https://github.com/servo/heapsize/blob/master/src/lib.rs#L44). After the removal of jemalloc, It's difficult to make this function available for rust to be linked.
In the future, if we want to have fine-grained control of memory, we can benefit from https://github.com/servo/servo/tree/master/components/malloc_size_of which is currently used by Servo.

from locustdb.

I have create a pr for this. Please have a look. #115

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