[WIP] feat(diskann): add macOS support via kqueue-based async IO#557
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richyreachy wants to merge 44 commits into
Open
[WIP] feat(diskann): add macOS support via kqueue-based async IO#557richyreachy wants to merge 44 commits into
richyreachy wants to merge 44 commits into
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… into refactor/diskann_dlopen
… into refactor/diskann_dlopen
… into refactor/diskann_dlopen
richyreachy
requested review from
Cuiyus,
JalinWang,
chinaux,
feihongxu0824,
iaojnh and
zhourrr
as code owners
… into refactor/diskann_dlopen
The index_group_by_test uses DiskAnn indexes (guarded by #if DISKANN_SUPPORTED) to verify that group_by search is rejected for unsupported index types. However, the CMakeLists.txt for tests/core/interface/ did not link core_knn_diskann, causing the DiskAnn factory to not be registered at runtime. This resulted in IndexFactory::CreateAndInitIndex returning nullptr for DiskAnn indexes, failing the test assertion. Add core_knn_diskann to the LIBS list, consistent with how other test directories (tests/db/, tests/db/index/, tests/core/algorithm/diskann/) handle DiskAnn linking.
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This PR adds diskann index support on macOS by implementing a kqueue-based asynchronous I/O backend as the macOS equivalent of Linux's libaio.
Uses BSD kqueue/kevent to monitor file descriptor readiness. Then performs the actual data transfer with pread: