We’re introducing JetStream 2.1 which runs the same subtests as JetStream 2. However, JetStream 2.1 updates the benchmark driver to pre-fetch network resources into Blobs, and create URLs from them. The subtests will now load resources from these blob URLs instead.
With this change, we measured JetStream 2.1’s benchmark scores on both Chrome and Safari to be more stable and is less perturbed by pause times due to network latency. Scores produced from JetStream 2.1 are not comparable to other versions of any JetStream benchmark.