[wp-trac] [WordPress Trac] #57916: Explore and assess 6.2 server-side performance regressions

[WordPress Trac]

#57916: Explore and assess 6.2 server-side performance regressions
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 Reporter:  flixos90        |       Owner:  flixos90
     Type:  task (blessed)  |      Status:  assigned
 Priority:  normal          |   Milestone:  6.2
Component:  General         |     Version:  trunk
 Severity:  normal          |  Resolution:
 Keywords:  has-patch       |     Focuses:  performance
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Comment (by hellofromTonya):

 Replying to [comment:8 spacedmonkey]:
 > After spending a lot of time profiling, I discovery a performance
 difference between beta4 and rc2. This function is called
 `register_block_style_handle`. This function seems to have changed how it
 working somehow. The biggest things slowing this function down is the
 realpath check. In the 184 times it was called in my local env, it was
 doing a realpath a file that does not exist.
 >
 > As this is a simple fix, it could go into 6.2RC3 or 6.2.1.
 >
 > I would like to understand the root cause of this problem, but couldn't
 find it in my profiles.

 For it to go into 6.2 RC3:
 * Need to confirm that this is a significant or severe performance
 regression introduced in 6.2.
 * Need to identify and "understand the root cause of this problem" to
 ensure the fix resolves it without causing unexpected issue(s).

 Else, I'd suggest considering it for 6.2.1 when ready.

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Ticket URL: <https://core.trac.wordpress.org/ticket/57916#comment:10>
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