Author here. Thanks for putting Zvec through its paces and sharing such detailed results—really appreciate the hands-on testing!

Just a bit of context on the storage behavior: Zvec currently uses memory-mapped files (mmap) by default, so once the relevant data is warmed up in the page cache, performance should be nearly identical regardless of whether the underlying storage is local disk or object storage—it's essentially in-memory at that point. The 100ms latency you observed with blobfuse2 likely reflects cold reads (data not yet cached), which can be slower than local disk in practice. Our published benchmarks are all conducted with sufficient RAM and full warmup, so the storage layer's latency isn't a factor in those numbers.