benchmark: increase iteration counts for 4 cases

[lucshi]

Increase the iteration counts to 10X to reflect real performance of perf hooks timing.

Refs: #50571

Belowing are the improved ratio with 10X iteration:

performance-observer.js
./node/benchmark//perf_hooks/performance-observer.js n=1000000
perf_hooks/performance-observer.js pending=1 n=1000000 percent=111.33%
perf_hooks/performance-observer.js pending=10 n=1000000 percent=127.58%

resourcetiming.js
./node/benchmark//perf_hooks/resourcetiming.js n=1000000
perf_hooks/resourcetiming.js observe="resource" n=1000000 percent=135.24%

timerfied.js
./node/benchmark//perf_hooks/timerfied.js n=1000000
perf_hooks/timerfied.js observe="function" n=1000000 percent=116.11%

usertiming.js
./node/benchmark//perf_hooks/usertiming.js n=1000000
perf_hooks/usertiming.js observe="all" n=1000000 percent=823.76%
perf_hooks/usertiming.js observe="measure" n=1000000 percent=1039.62%

[H4ad]

Can you please update the first commit message to something like: Septa2112@a13bb22

Maybe benchmark: update iterations in perf_hooks.

Also, how are you generating this percent metric?

[lucshi]

please update the first commit message to something like: Septa2112@a13bb22

Maybe benchmark: update iterations in perf_hooks.

Also, how are you generating this percent metric?

I wrote a script to compare the before and after score.

As the perf_hooks testing methods are only a few, so I will not split the commit. I have updated the commit msg. Could you please go ahead to approve it? Thanks!

[H4ad]

Thanks for the PR

[nodejs-github-bot]

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----------------------------------- PR info ------------------------------------
Title      benchmark: increase iteration counts for 4 cases (#50869)
Author     Lei Shi  (@lucshi)
Branch     lucshi:my-branch-5 -> nodejs:main
Labels     benchmark, author ready, perf_hooks
Commits    1
 - benchmark: update iterations in benchmark/perf_hooks
Committers 1
 - Lei Shi 
PR-URL: https://github.com/nodejs/node/pull/50869
Refs: https://github.com/nodejs/node/issues/50571
Reviewed-By: Vinícius Lourenço Claro Cardoso 
------------------------------ Generated metadata ------------------------------
PR-URL: https://github.com/nodejs/node/pull/50869
Refs: https://github.com/nodejs/node/issues/50571
Reviewed-By: Vinícius Lourenço Claro Cardoso 
--------------------------------------------------------------------------------
   ℹ  This PR was created on Thu, 23 Nov 2023 07:06:59 GMT
   ✔  Approvals: 1
   ✔  - Vinícius Lourenço Claro Cardoso (@H4ad): https://github.com/nodejs/node/pull/50869#pullrequestreview-1750127621
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[nodejs-github-bot]

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