[Misc] Update disaggregation benchmark scripts and test logs

[Jeffwan]

FIX #11455

/cc @KuntaiDu this is a minor improvement on existing benchmark tools and tests

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[KuntaiDu]

In general LGTM. Something that comes into my mind (you don't need to fix them in this PR):

• Add -tp parameter to the benchmarks
• The syntax that I use is something like "[rank0]". Would be nice if you can align the syntax.

[Jeffwan]

@KuntaiDu Sounds good. I will address your comments and enrich the benchmark scripts in future PRs