Blueprint 07 Industry Libraries

Source: docs/blueprint/07-industry-libraries.md in the main repository.

Industry libraries mapped to the six-layer stack

Companion to the review checklist. Status: SHIPPED (code+test), OPTIONAL (auto-on when installed), DOC, or GAP.

Layer	Library	Status	Evidence
§1 HW/OS	hwloc	OPTIONAL	ctest -R hwloc, STACK_WITH_HWLOC
§1 HW/OS	libnuma / numactl	SHIPPED API · Linux OPTIONAL link	ll/linux_numa.hpp
§2 Ingress	liburing	SHIPPED API · Linux OPTIONAL link	ll/linux_uring.hpp
§2 Ingress	DPDK	OPTIONAL detect + stub RX	STACK_WITH_DPDK, ll/kernel_bypass.hpp
§2 Ingress	OpenOnload / EF_VI	OPTIONAL detect + stub RX	STACK_WITH_ONLOAD
§2 Serde	Real Logic SBE	SHIPPED	generated/sbe/, ll/sbe_codec.hpp
§2 Serde	SBE-style POD	SHIPPED	ll/sbe_style.hpp
§2 Serde	FlatBuffers	OPTIONAL	schemas/tick.fbs
§2 Serde	struct_pack	SHIPPED (FetchContent)	ll/struct_pack_tick.hpp, yalantinglibs
§3 Memory	std::pmr	SHIPPED	ll/pmr_arena.hpp
§3 Memory	mimalloc	OPTIONAL	industry tests
§3 Memory	jemalloc	OPTIONAL	ll/jemalloc_util.hpp
§4 Queues	ll::SpscQueue	SHIPPED	teaching + tiny footprint
§4 Queues	moodycamel::ReaderWriterQueue	OPTIONAL	FetchContent
§4 Queues	Boost.Lockfree spsc_queue	SHIPPED	always (Boost required)
§4 Queues	folly::ProducerConsumerQueue	OPTIONAL	auto if Folly installed; also make folly
§6 Telemetry	ll::HdrLatencyHistogram	SHIPPED	portable log buckets
§6 Telemetry	HdrHistogram_c	SHIPPED	FetchContent + ll::HdrHistogramC
§6 Telemetry	Google Benchmark	OPTIONAL	bench_queues

Selection guidance

1. Default portable path: ll::* + Boost.Lockfree + std::pmr + Asio/Beast + SBE + struct_pack.
2. Add when available: hwloc, FlatBuffers, moodycamel, mimalloc, jemalloc, Google Benchmark, Folly PCQ.
3. Linux production envelope: numa, uring, isolcpus, hugepages.
4. Venue-facing wire: Real Logic SBE and/or struct_pack — not JSON on the hot path.
5. Kernel bypass: detect DPDK/Onload headers when present; implement IPollModeRx on lab NIC.

Tutorials: docs/tutorials/industry-stack.md.