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[ICRDMA] Chunk reclaimation feature for slot mem pool. Change limit. EXT-1782 #31708

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Merged
dcherednik merged 4 commits into from
Jan 9, 2026
Merged

[ICRDMA] Chunk reclaimation feature for slot mem pool. Change limit. EXT-1782 #31708

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3bb71e4
Chunk reclamation feature for slot mem pool. Change limit.
dcherednik Dec 12, 2025
b79f95b
Fix
dcherednik Jan 8, 2026
51b27a8
Fix
dcherednik Jan 8, 2026
7490db9
More tests
dcherednik Jan 9, 2026
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329 changes: 279 additions & 50 deletions ydb/library/actors/interconnect/rdma/mem_pool.cpp
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12 changes: 8 additions & 4 deletions ydb/library/actors/interconnect/rdma/mem_pool.h
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Original file line number Diff line number Diff line change
Expand Up @@ -14,16 +14,20 @@ namespace NMonitoring {
struct TDynamicCounters;
}

struct TMemRegCompare;
namespace NInterconnect::NRdma {

class IMemPool;
class TMemRegion;
class TChunk;
class TMemPoolImpl;
class TSlotMemPool;

using TChunkPtr = TIntrusivePtr<TChunk>;

class TMemRegion: public NNonCopyable::TMoveOnly, public IContiguousChunk {
friend struct ::TMemRegCompare;
friend class TSlotMemPool;
public:
TMemRegion(TChunkPtr chunk, uint32_t offset, uint32_t size) noexcept;
TMemRegion(TMemRegion&& other) noexcept = default;
Expand All @@ -35,16 +39,16 @@ namespace NInterconnect::NRdma {
uint32_t GetLKey(size_t deviceIndex) const;
uint32_t GetRKey(size_t deviceIndex) const;

void Resize(uint32_t newSize) noexcept;

public: // IContiguousChunk
TContiguousSpan GetData() const override;
TMutableContiguousSpan UnsafeGetDataMut() override;
size_t GetOccupiedMemorySize() const override;
EInnerType GetInnerType() const noexcept override;
IContiguousChunk::TPtr Clone() noexcept override;
protected:
void Resize(uint32_t newSize) noexcept;
TChunkPtr Chunk;
ui64 Generation = 0;
const uint32_t Offset;
uint32_t Size;
const uint32_t OrigSize;
Expand Down Expand Up @@ -97,9 +101,9 @@ namespace NInterconnect::NRdma {
virtual TString GetName() const noexcept = 0;

protected:
virtual TMemRegion* AllocImpl(int size, ui32 flags) noexcept = 0;
virtual TMemRegionPtr AllocImpl(int size, ui32 flags) noexcept = 0;
virtual void Free(TMemRegion&& mr, TChunk& chunk) noexcept = 0;
virtual void DealocateMr(std::vector<ibv_mr*>& mrs) noexcept = 0;
virtual void DealocateMr(TChunk*) noexcept = 0;
private:
virtual void Tick(NMonotonic::TMonotonic time) noexcept = 0;
};
Expand Down
57 changes: 0 additions & 57 deletions ydb/library/actors/interconnect/rdma/ut_mem_pool_limit/allocator_ut.cpp
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