Simple benchmark to measure actual throughput of single core workloads.
Building:
make
Running:
make test
Example invocation (on Amazon c5n.metal instance):
./memory-bench
To run 10 of them in parallel (to measure multi-core performance):
for i in 0 1 2 3 4 5 6 7 8 9; do ./memory-bench & done
Instance Type 1 core 16 cores
c5n.metal 5 GB/s 56 GB/s
c6g.metal 14.5 GB/s 118 GB/s
Measurement on single core on Amazon EC2 c5n.metal instance:
25500: read/process/write 4096 MB took 0.74152 seconds
Measurement when running 16 of them in parallel:
58608: read/process/write 4096 MB took 1.14072 seconds
Measurement on a single core on Amazon EC2 c6g.metal instance:
17909: read/process/write 4096 MB took 0.274965 seconds
Measurement when running 16 of them in parallel:
17999: read/process/write 4096 MB took 0.542598 seconds