Benchmarking Deno KV vs Upstash Redis

A recent comparison between Deno KV, a Deno-native key-value store, and Upstash Redis highlighted significant differences in performance and cost. Both systems have a primary region for writing data, with replication to other regions and reads served from the closest region to the client. The benchmark involved invoking functions globally and from a single region, showing that Deno KV exhibited higher latency than Upstash Redis in both scenarios. Particularly in a global context, Deno KV's latency was substantially higher due to potentially fewer read regions. Despite ease of use and integration with Deno, Deno KV's performance and pricing were less favorable compared to Upstash Redis, which offered more predictable pricing and superior performance, especially for requests exceeding 8KB. Both platforms provide free tiers, but Upstash's pricing structure is more straightforward, allowing for larger requests at a consistent rate.