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litespeed_wiki:php:server-load-issue [2019/06/12 21:04] Jackson Zhang |
litespeed_wiki:php:server-load-issue [2019/06/14 20:04] Jackson Zhang |
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| * Try to use our [[https://www.litespeedtech.com/products/cache-plugins|LSCache solutions]] to lower the load. | * Try to use our [[https://www.litespeedtech.com/products/cache-plugins|LSCache solutions]] to lower the load. | ||
| * It is always good practice to use the ''top'' or ''atop'' command to check which processes are using a lot of CPU resources, and then figure out whether they are behaving normally. | * It is always good practice to use the ''top'' or ''atop'' command to check which processes are using a lot of CPU resources, and then figure out whether they are behaving normally. | ||
| - | * If disk I/O is high, it is likely a disk I/O problem, which you should address. If you have more free memory available, you can move php sessions to ''/dev/shm''. Disk I/O issue example: <code>top -c</code> iowait ''41.6 wa'' is too high. then check further <code>ostat -x | + | * If disk I/O is high, it is likely a disk I/O problem, which you should address. If you have more free memory available, you can move php sessions to ''/dev/shm''. Disk I/O issue example: <code>top -c</code> iowait ''41.6 wa'' is too high. then check further <code>iostat -x |
| Linux 3.10.0-962.3.2.lve1.5.24.10.el7.x86_64 (lbr27.lalunahost.com.br) 04/18/2019 _x86_64_ (8 CPU) | Linux 3.10.0-962.3.2.lve1.5.24.10.el7.x86_64 (lbr27.lalunahost.com.br) 04/18/2019 _x86_64_ (8 CPU) | ||