Tweak NewsSite test step scenarios

[lingyuncai]

This proof of concept illustrates potential tweaks to the test steps for the NewsSite workload. It introduces an extra navigation to a new tab instead of repeatedly toggling the drop-down menu.

[camillobruni]

I'm not opposed to this change in general. @flashdesignory what's your take here? How much slower does the test run now?

[camillobruni]

btw, you can use crossbench to create browser comparison data easily.

[lingyuncai]

Hi @camillobruni, thanks for your comments.

Below are the crossbench results for this PR from 10 runs. We ran the whole benchmark and extracted the scores for NewsSite cases.

this PR

browser              Google Chrome        Firefox              Safari
NewsSite-Next        75.03 ± 0.92%        64.70 ± 0.90%        86.99 ± 0.61%
NewsSite-Nuxt        47.72 ± 0.98%        53.09 ± 1.2%         59.44 ± 0.92%
Score                36.45 ± 0.63%        31.74 ± 0.67%        31.41 ± 0.45%

main

browser              Google Chrome        Firefox              Safari
NewsSite-Next        64.35 ± 0.79%        63.03 ± 0.80%        71.6 ± 1.9%
NewsSite-Nuxt        62.70 ± 0.85%        70.6 ± 1.8%          76.33 ± 0.14%
Score                36.21 ± 0.53%        31.45 ± 0.90%        31.34 ± 0.59%

System and browser version

browser              Google Chrome        Firefox              Safari
version              131.0.6778.86        133.0                19618.1.15.11.12
os                   macos 14.4 arm64     macos 14.4 arm64     macos 14.4 arm64
device               Mac14,7              Mac14,7              Mac14,7
cpu                  Apple M2 8 cores     Apple M2 8 cores     Apple M2 8 cores
runs                 10                   10                   10
failed runs          0                    0                    0

Basically, NewsSite-Next runs slower while NewsSite-Nuxt runs faster. This difference is related to how each framework handles router.push().

In NewsSite-Nuxt, the Vue router leverages microtasks for its navigation mechanism, so a forced layout of a new tab does not happen synchronously. However, in NewsSite-Next, router.push() is executed synchronously, resulting in a forced layout in sync time when clicking the drop-down menu again.

[lingyuncai]

Hi @camillobruni,

Just kindly ping :) Do you have any comments or suggestions on this idea? Thank you!

[camillobruni]

Could you try kicking off the try-jobs again?

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[lingyuncai]

Hi @camillobruni, I just did a rebase and triggered a new round of CI runs.