Hello to all!
I have problem, that magento CE gets very slow if I upgrade it from v1.7 to 1.9.1.
I get aprx. 8 seconds just to show first page, on v1.7 this is max. 2 seconds.
Can you point me in which direction should I explore and what should I check?
I deleted all in cache folder, I cleaned cache and reindexed - but situation was the same.
Solved! Go to Solution.
without access to the webstore I can't say very mutch, but you can start checking the logs (var/logs/) to see if there is any error/warning messages.
Them you can use some tools like Yslow to check if you can make some improvements.
If you are running on apache server you can try to increase memory limit on .htaccess.
If you have resolved this with APC Cache then you may want to consider Redis as your next step,
You can use Redis Cache for both backend cache & sessions, this can have a significant performance increase over APC