Benchmarks: Unify metric names of benchmarks

[yukirora]

Description
Revise metric names of benchmarks.

[codecov]

Codecov Report

Merging #252 (5a176fa) into main (c13ed2a) will increase coverage by 0.06%.
The diff coverage is 98.48%.

@@            Coverage Diff             @@
##             main     #252      +/-   ##
==========================================
+ Coverage   87.61%   87.67%   +0.06%     
==========================================
  Files          70       70              
  Lines        3947     3967      +20     
==========================================
+ Hits         3458     3478      +20     
  Misses        489      489              

Flag	Coverage Δ
cpu-unit-test	72.19% <89.39%> (+0.14%)	⬆️
cuda-unit-test	87.62% <98.48%> (+0.06%)	⬆️

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Impacted Files	Coverage Δ
...arks/micro_benchmarks/ib_validation_performance.py	86.97% <95.00%> (+0.64%)	⬆️
.../docker_benchmarks/rocm_onnxruntime_performance.py	90.90% <100.00%> (ø)
...ro_benchmarks/computation_communication_overlap.py	83.01% <100.00%> (ø)
...ks/micro_benchmarks/cuda_gemm_flops_performance.py	71.69% <100.00%> (ø)
...ch/benchmarks/micro_benchmarks/disk_performance.py	98.96% <100.00%> (ø)
...ks/micro_benchmarks/gemm_flops_performance_base.py	96.77% <100.00%> (+0.10%)	⬆️
.../benchmarks/micro_benchmarks/gpcnet_performance.py	93.10% <100.00%> (+1.10%)	⬆️
...hmarks/micro_benchmarks/gpu_copy_bw_performance.py	97.56% <100.00%> (ø)
...hmarks/micro_benchmarks/ib_loopback_performance.py	88.88% <100.00%> (ø)
...chmarks/micro_benchmarks/kernel_launch_overhead.py	85.00% <100.00%> (ø)
... and 7 more

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[abuccts]

two general questions:

1. do we need to have a unified metrics format, e.g., benchmark/description_type_statistic? type can be time/bw/flops/count, etc., statistic can be min/max/avg, etc.
2. is it necessary to include the unit in the metrics? like time_ms, etc.

[cp5555]

Change to avg_throughput

[yukirora]

done