AWS General purpose VMs history - sysbench CPU



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Sysbench CPU is an open source micro benchmark tool. Its job is to find the highest number of prime number during a certain amount of time. This test outputs a rate comparable across our different VMs and being a simple operation, it doesn't involve thread cooperation nor intensive RAM usage.

Our testing configuration use a number of thread equal to the CPU number and prime number under 64000. Here's a template of command line:

sysbench --threads=$cpu_number --time=60 cpu --cpu-max-prime=64000 run

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Observations:

  • The Graviton CPU outperforms their x86 equivalent by 100%
  • The performance has evolved up to 300% for x86 and 530% for Arm.