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cmd/bdbench drives one or more sharded stores the way the adapter does: a block per interval of dynamic rewrites over a hot key set, permanent appends, lookups across all ages, then a seal; maintenance on the adapter's cadence in its own goroutine, one pass in flight per store. Defaults are the 2026-09-16 soak's BVN store at 500 tps. It reports once a minute what spec 1.2 governs -- seal and block against the interval, put and read p99, each maintenance kind's passes and time, the process's disk traffic, store size, history segments, resident filter memory -- and fails a run whose reads return anything but the last written value. The report is a live page (-http) that a run is launched by opening; -stores puts several stores on one disk, the way a validator's partitions and a test network's nodes are. SPEC 2.9 now describes the adapter as it is (sharded, seal limit 12,500, window 20, maintenance every 20 commits, packs every 1000); the register closes #62 and #47 and carries #94; 2.11 defines the platform and what a healthy store must show on it. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015wUZmWRdAPtcfFgYrLJCc5
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Stacked on #93 (its spec text refers to #92).
cmd/bdbenchdrives one or more sharded stores the wayaccumulate/pkg/database/keyvalue/bcdbdoes, without Accumulate: one block per interval of dynamic rewrites over a hot key set, permanent appends of new keys, lookups across all ages, then a seal; maintenance on the adapter's cadence (Compress,MergeFinalized,PackFinalized) in its own goroutine, one pass in flight per store, skipped not queued. Defaults are the 2026-09-16 soak's BVN store at 500 tps (~11k dyna puts, ~8k perm puts, ~40k lookups per 1 s block). Flags only (1.10).Once a minute it reports what 1.2 governs, so a cost that grows with the age of the store is a column that climbs: blocks over the interval; block and seal p50/p90/max; put and read p99; passes and time per maintenance kind; the process's disk read/write rate; store size and file count; history segments per layer; resident filter memory; and reads that returned anything but the last written value, which fail the run.
-httpserves a live page (cards, charts against age, the per-minute table);-stores Nruns several stores on one disk in one process;-pprofserves profiles.First result (one store, defaults, 30 min on the soak machine's NVMe): seal p50 ~51 ms and block p50 ~210 ms flat from minute 1 to minute 18, put/read p99 under 10 µs, compaction 0.7 s per pass, store 3.8 GB at 18 min, zero wrong answers. A store alone did not knee where the soak's nine did; the shared fsync queue is the next run (
-stores 9).Spec: 2.9 rewritten to the adapter as it is (sharded, seal limit 12,500, window 20, maintenance every 20 commits, packs every 1000; #62 and #47 closed in the register); 2.11 defines the platform and what a healthy store must show on it; #94 enters the register.
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https://claude.ai/code/session_015wUZmWRdAPtcfFgYrLJCc5