perf: enable zero-allocation queries and memory-mapped indexes

Introduce zero-allocation row extraction and query result buffers across `obicompactvec` and `obikpartitionner` to eliminate per-kmer heap allocations. Replace in-memory MPHF deserialization with memory-mapped, zero-copy views to reduce runtime memory footprint. Add configurable I/O chunking, a RAM-aware `--chunk-size` parameter, and system memory monitoring via the new `sysinfo` dependency. Re-export `PreloadedIndex` for external consumers.

This commit is contained in:

Eric Coissac

2026-06-03 10:24:12 +02:00

parent 1661dd6b1c

commit de1a41810a

11 changed files with 403 additions and 274 deletions

									
										src/obisys/Cargo.toml
									
		+2
		-1
	
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				@@ -4,4 +4,5 @@ version = "0.1.0"

				edition = "2024"

				[dependencies]

				libc = "0.2"

				libc     = "0.2"

				sysinfo  = "0.33"