Prestashop slow (debug profiling test)

[simonetb]

A few days ago my prestashop site has slowed down, both public and administrative. I did a test with DEBUG_PROFILING and this is the result (see attached image)

 

Before evaluating a transition to a vps, what can I optimize in prestashop? Thank you

[El Patron]

that is really not enough information to find specific issue, you would need to post complete report and even then it is an art.

Usually when we see slowdown it can be related to a change, normally a module.  It can be for example an old module that did remote request but that service is slow our went out of business.  It could be hosting related but normally they stay the same during their shelf life but you can contact your hosting.

to determine  if module?

on performance page, disable 3rd party modules and test your shop.  if you see issue go away then ok we have narrowed it down to an area.  If speed improved how do we find the offending module?  Assuming it's a new module using ftp you can view modules folder by date and disable latest to see if performance improves.  It's a bit of hunt and peck but can lead to results.

if the disable of modules did not help (don't forget to re-eanble) do the same with overrides and check results.  if in override system then it gets harder to determine, you will need to download the  override folder and review overrides to match up to modules.  note:  not all  modules who use overrides see if they are  disabled at override time....boo!  

at the end of the day, performance requires someone with knowledge of debug that can isolate, the profiler while nice is not really the best....you can also detect issues using google chrome 'inspect' and even gtmetrix or other waterfall.....these will help you find long http request to remote systems.

Hope this helps,

el