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litespeed_wiki:php:improve-performance [2017/06/20 13:29] Jackson Zhang |
litespeed_wiki:php:improve-performance [2019/04/04 13:46] Jackson Zhang |
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| * Upgrading to a higher CPU LiteSpeed license should provide more processing power. | * Upgrading to a higher CPU LiteSpeed license should provide more processing power. | ||
| - | * If the server has enough free memory, put PHP sessions and opcode cache disk storage under /dev/shm. If server I/O wait is high, enable AIO logging. | + | * If the server has enough free memory, put PHP sessions and opcode cache disk storage under /dev/shm. |
| + | * If server I/O wait is high, enable AIO logging. | ||
| + | * Does the domain hit CloudLinux LVE IO Limit? Use ''lvetop'' to verify if IO is reaching the defined maximum (xMB/s). | ||
| * Have you enabled the timezonedb module for your PHP? We do see poorer performance when people move to a cloud server with shared storage, the I/O latency could cause trouble. Without PHP timezonedb module with built-in DB, it may not have a huge impact on a server with the local disk but it will be very costly for a cloud server with shared storage since PHP will scan hundreds of directories. | * Have you enabled the timezonedb module for your PHP? We do see poorer performance when people move to a cloud server with shared storage, the I/O latency could cause trouble. Without PHP timezonedb module with built-in DB, it may not have a huge impact on a server with the local disk but it will be very costly for a cloud server with shared storage since PHP will scan hundreds of directories. | ||
| * Check your "top" output to determine which processes are using too much CPU/memory. Buggy PHP code could be causing these performance issues. | * Check your "top" output to determine which processes are using too much CPU/memory. Buggy PHP code could be causing these performance issues. | ||
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| * Are your server kernel settings configured for high traffic? | * Are your server kernel settings configured for high traffic? | ||
| * Is your site under attack? | * Is your site under attack? | ||
| + | * SSD is a must. You should not run on a server with a regular hard drive. | ||
| Addressing any of the above may improve the performance of your server. However, performance issues may be related to something entirely different. Your situation may vary greatly, because of this, we recommend ordering our **[[https://store.litespeedtech.com/store/cart.php?gid=5|LiteSpeed premium support service]]** for a professional review, fine tuning, and installation/enabling of necessary elements to optimize your server and maximize site performance. | Addressing any of the above may improve the performance of your server. However, performance issues may be related to something entirely different. Your situation may vary greatly, because of this, we recommend ordering our **[[https://store.litespeedtech.com/store/cart.php?gid=5|LiteSpeed premium support service]]** for a professional review, fine tuning, and installation/enabling of necessary elements to optimize your server and maximize site performance. | ||