Sergei Vinogradov

Implemented Memory Provider for Heterogeneous memory.

4

The idea is to add abstraction layer for heterogeneous memory. The interface is built on top of C++ 17 std::pmr::memory_resource interface.

### Description Reducing cache coherency traffic under contention ### Type of change - [x] bug fix - _change which fixes an issue_ - [ ] new feature - _change which...

We should prohibit cross-pool swap in concurrent_hash_map and in concurrent_skip_list

1

It is not possible to support cross-pool swap in concurrent_hash_map and in concurrent_skip_list because we do not support cross-pool transactions.

# FEAT: concurrent_multimap, concurrent_set, concurrent_multiset ## Rationale We have a concurrent_map implemented using concurrent_skip_list. The concurrent_skip_list designed in a way to share the same implementation between concurrent_multimap, concurrent_set, concurrent_multiset. So,...

Implement feature flags in the concurrent skip list

1

It would be good to reserve some space + add feature flags similarly as we have in concurrent_hash_map. The reserved space should be calculated so that hash_map is aligned to...

We need to decide how ```destroy()``` method has to work with transactions.

This set of changes allows binding particular memory segments to the specified NUMA node(s).

Transparent Item movements

3

The new algorithm relies on the moving bit and does not require external synchronization. Data movement happens transparently for the client: if the client thread attempts to get a handle...

NUMA bindigs support for private memory

2

This PR adds NUMA binding support for private memory. I tried to align the implementation with shared memory approach and introduced `PrivateMemoryManager`. By current design, `SlabAllocator` allocates and owns private...

The pool_proxy causes memory leak when used with OS memory provider.

3

The `pool_proxy` implementation is straightforward and simply proxies all allocation/deallocation requests to the underlying memory provider. The `proxy_free()` function just calls the `umfMemoryProviderFree()` function which requires the `size` of the...