Events with a small number of frames

[yurys]

Why zoneminder v1.25.0 creates a lot of events with a small number of frames with a duration of 3-5 seconds?
The settings displayed by default.

I use a powerful server
CPU: Intel (R) Xeon (R) CPU 5150@2.66GHz (2660.05-MHz K8-class CPU)
8GB of Ram

FreeBSD 9.1
Mysql-server-5.5.29 with default innodb config - my-innodb-heavy-4G.cnf
As a data store using ZFS raidz with 4 SAS disks.

[yurys]

Had high values ​​of the variables, do so, and all was well:
kern.ipc.shmall: 131072
kern.ipc.shmmax: 536870912

[bb99]

Increase the Post Event Image Count to 10 seconds worth of frames and your issue should be solved