Re: [Observium] high CPU / slow response

Hi Paul

Have no issues like this (using community edition BTW), with about 142 devices polled.

The stuff I already did:

• apparently it was running on a 32bit kernel, move it to a new 64bit

• changed to 4 cores .. no real result

• disabled the unused-polling

It seems that the cpu-usage of mysqld goes really high when logging in to show to startpage with the map ..

when going directly to the device the response-time is "okay" but not great.

When running mysqltuner:

innodb_buffer_pool_size​ should be greater than 23G ?

How big is your ibdata1 ?

Some optimizations :

innodb_file_per_table=1 innodb_buffer_pool_size=1024M max_connections = 300

And use XFS with option noatime uppon options of FSTAB.

Also use elevator=deadline or elevator=noop (on a VM) is the best way to have more IO than the shitty CFQ ...

Xavier