We've got a Magento install that's currently running like a dog... We've had to install FPC to help with the site speed but this doesn't help with the search.

I've logged into the server and I can see the load of the server is really high and it's MySQL that's hogging it all.

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2 Answers 2


Disable your FPC, then run the Magento profiler.

You're wanting to look at the 'time' column - the total of this column is your rendering time. So look for a line with a high value, this will give you the culprit.

Here's a guide that'll help you; https://www.nublue.co.uk/blog/using-magento-profiler-to-speed-up-magento-performance/

Another way is to run it on your staging server, and disable all non-default modules then re-enable them one by one.


Disable fpc, then use a profiler (like tideways, blackfire, xdebug, ...) to look into the cause and fix it.

Mostly this is some bad written code.

Afterwards, you can enable FPC again.

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