After updating to PHP 8.3, DB read/write got extremely slower

  • I think I did something wrong with configuration, but can’t figure out what it is and where to fix. Wonder if you guys have any suggestion.

    I have updated my server’s PHP from 8.2.11 to 8.3.1 yesterday. Since then, I have following issues

    • Redis Object Cache’s maximum cache % is 69.4% w/ 25MB
    • After systemctl restarting Redis, PHP, and Nginx, initially it works as before, but after sometime, it becomes extremely slow

    After updating PHP, I have not yet removed 8.2, so I tried to go back, which gives me no issue like above. Is there any potential configuration that I have to touch?

Viewing 3 replies - 1 through 3 (of 3 total)
  • Plugin Support Julie

    (@julieadrienne)

    Did the metrics improve after some time?

    Thread Starter Keith

    (@keithkhl)

    no it got worse. I rolled back to PHP 8.2. Not sure if it is PHP 8.3’s incompatibility with one of the plugins, Nginx, Redis, but on my test server w/o Redis, I can have little bit of performance upgrade by PHP upgrade.

    I have tried again today, but ended up with the same situation. Redis’s metric did not look as before. There were jumps in every a min, like a squeezed sine/cosine graph.

    Plugin Support Julie

    (@julieadrienne)

    Can you run a diff on the diagnostics output of Redis Object Cache for 8.2 and 8.3? I wonder if you’re maybe changing clients or configuration when going to 8.3.

Viewing 3 replies - 1 through 3 (of 3 total)
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