Heavy CPU

Hi Aleksandar –

I went live with our new WP website over the weekend using the stock ticker on every page. Today was the first busier day (about 1000 concurrent users) and I was getting very high CPU on the box. The hosting provider gave the info at the bottom, saying that the CPU was from high numbers of ajax requests from the stock ticker plugin.

We’re using the plugin in a fairly unusual way. We’re publishing our own tickers, so they’re not pulling from AlphaVantage. We have a daily job that drops the ticker data directly into the WP database.

Because of that, I had the cache timeout set very high, 86400. Ideally, I’d like to cache the data for several hours before needing to refresh. Is there a configuration option that will let me do that?

Thanks

Header Status Returns: non-HIT’s, sorted by most up top:
21659 200-“POST /wp-admin/admin-ajax.php
Please understand that these types of requests are uncached:

Request URL: /wp-admin/admin-ajax.php
Request Method: POST
Status Code: 200
Remote Address: 3.93.118.23:443
Referrer Policy: no-referrer-when-downgrade
action: stockticker_load
symbols: OTRI.USA,WAIT.USA,OTVI.USA,DATVF.VEU,DATVF.VNU,DATVF.VSU,DATVF.VWU
show: name
number_format: cd
decimals: 2
static: 0
class:
speed: 65
empty: true
duplicate: false