AWS Graviton2: Arm Brings Better Price-Performance than Intel

Michał Chojnowski's blog post analyzes the performance of ScyllaDB on AWS's Graviton2-based Arm instances compared to Intel's x86-based instances, highlighting a 15%-25% better price-performance ratio for Arm across both CPU-bound and disk-bound workloads with similar latencies. The comparison involved m5d.8xlarge and m6gd.8xlarge instances, which have similar specifications except for the CPU architecture. The benchmarks conducted using the cassandra-stress tool revealed that while general performance was roughly equivalent, the cost-efficiency of Arm provided a significant advantage. Despite some slower random mixed read-write operations on Arm, the overall price-performance benefit was about 20% in favor of m6gd. The blog post concludes that AWS Graviton2 ARM-based servers are competitive with or superior to their x86 counterparts, especially in terms of price-performance, and it anticipates future official ScyllaDB releases for Arm instances.