Well..
It does sound like it's not your Zabbix or it's processes that actually cause that... We had a similar problem, adding memory and configuring mysql to use settings with larger caches and buffers helped. You can use the my.cnf references for stronger machines, those are usually in /usr/share/doc/MySQL-server-[version-number]/...
my-huge.cnf
my-innodb-heavy-4G.cnf
my-large.cnf
my-medium.cnf
etc.
& do try enabling Zabbix' DB cache - in zabbix_server.conf: StartDBSyncers=1
It does sound like it's not your Zabbix or it's processes that actually cause that... We had a similar problem, adding memory and configuring mysql to use settings with larger caches and buffers helped. You can use the my.cnf references for stronger machines, those are usually in /usr/share/doc/MySQL-server-[version-number]/...
my-huge.cnf
my-innodb-heavy-4G.cnf
my-large.cnf
my-medium.cnf
etc.
& do try enabling Zabbix' DB cache - in zabbix_server.conf: StartDBSyncers=1
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