[wp-trac] [WordPress Trac] #51297: The new WordPress 5.5.1 create 600ms TTFB respund

[WordPress Trac]

#51297: The new WordPress 5.5.1 create 600ms TTFB respund
--------------------------+--------------------------
 Reporter:  123nadav      |       Owner:  (none)
     Type:  defect (bug)  |      Status:  closed
 Priority:  normal        |   Milestone:
Component:  General       |     Version:  5.5.1
 Severity:  normal        |  Resolution:  worksforme
 Keywords:                |     Focuses:  performance
--------------------------+--------------------------
Changes (by peterwilsoncc):

 * status:  new => closed
 * resolution:   => worksforme
 * severity:  critical => normal
 * milestone:  Awaiting Review =>


Comment:

 @123nadav

 Hello and welcome to trac!

 I've done some testing between version 5.5 and 5.5.1 on a local virtual
 machine with a little under 600 posts and can not reproduce the problem on
 a vanilla install of WordPress (default theme, no caching, no plugins).

 Using a utility to [https://github.com/jaygooby/ttfb.sh measure time to
 first byte] over 200 requests showed no significant performance
 difference.


 {{{
 // 5.5.1
 $ bash ~/Downloads/ttfb.sh -n 200 http://wordpress-develop.local/
 ........................................................................................................................................................................................................
 fastest .091106 slowest .137703 median .096078


 // 5.5
 $ bash ~/Downloads/ttfb.sh -n 200 http://wordpress-develop.local/
 ........................................................................................................................................................................................................
 fastest .090222 slowest .161712 median .097094
 }}}

 I repeated the test a number of times and there was a little variation on
 each run but no difference like the one you describe.

 I'm going to close this ticket as works for me, indicating the problem
 could not be reproduced. You may wish to visit
 [https://wordpress.org/support/forums/ the support forums] for further
 assistance with your site.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/51297#comment:1>
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