Lsphp using high cpu

[dave]

I have 64gb RAM, NVME SSD, but lsphp is using high cpu. My daily visitor is 50k

Here is the top

http://prntscr.com/ts4q7h

 

[NiteWave]

is APCu used ? then try to disable it

strace a 100% CPU lsphp process, try to know what it's doing

 

[truckercheckin]

I have the same issue on my web app https://truckercheckin.com Are you using Redis to cache the sesion ?

 

[Pong]

Request URL: https://truckercheckin.com/
Request Method: GET
Status Code: 200  (from ServiceWorker)
Referrer Policy: no-referrer-when-downgrade
alt-svc: h3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400
cache-control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-cache-status: DYNAMIC
cf-ray: 5d6607932bd30cb5-EWR
cf-request-id: 0553a30ffc00000cb514377200000001
content-encoding: br
content-type: text/html; charset=utf-8
date: Mon, 21 Sep 2020 19:00:37 GMT
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
expires: Wed, 17 Aug 2005 00:00:00 GMT
last-modified: Mon, 21 Sep 2020 19:00:36 GMT
pragma: no-cache
server: cloudflare
status: 200
vary: Accept-Encoding,User-Agent
x-content-type-options: nosniff
x-turbo-charged-by: LiteSpeed

It doesn't contain cache hit header. You should enable litespeed cache plugin for your joomla site. Cache can help to avoid PHP processes.