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Best practices
input—video compression, image quality, image complexity, video resolution, frame rate, number of cameras
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output—to either FortiCentral or a web browser, for both live video streams and playing previous recordings
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storage—copies of video files for each motion detection clip, or only
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(markers are smaller than copies of large video files)
Performance bottlenecks are often:
network bandwidth usage to and from FortiRecorder
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CPU usage of the computer
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FortiCentral or your web browser must decode and render the video streams from the FortiRecorder. Displaying multiple
video streams is CPU intensive.
See also
Sizing guidelines on page
Computer CPU usage
If you need to simultaneously display 8 or more live video streams from cameras, then depending on how powerful the
computer hardware is, you might need to improve CPU usage.
Playing many videos can cause high CPU usage. (RAM is less important than CPU for rendering video.) If you
experience video where the motion "freezes" or is not smooth, or if cameras do not quickly respond to PTZ controls, then
use the diagnostic tools available on your OS (such as Task Manager on Microsoft Windows) to examine CPU usage
while you are experiencing video problems. If possible, keep the CPU usage below 50%.
To optimize performance, you can use the video and camera profiles. Define and assign another video stream for each
camera. Reduce the video resolution, quality and/or frames per second of the other video stream. This can increase the
number of live views that the computer can display, or reduce the CPU usage.
For live video streams, 10 FPS is often enough. It significantly reduces the system resource load on your computer
compared to 30 FPS, which might be required if the camera records an area with more movement.
See
Configuring video profiles on page 44
FortiRecorder RAM and CPU usage
Delete or disable unused cameras. FortiRecorder allocates memory with each camera, regardless of whether it is
currently receiving video from it. Extra cameras increase memory usage.
CPU usage can also increase if you configure
Logging and alert performance
If you have a FortiAnalyzer appliance, store the logs from FortiRecorder on FortiAnalyzer to avoid system resource
usage associated with writing logs to the hard disks on FortiRecorder. See
If you do not need a log or alert, disable it to reduce the use of system resources.
Reduce repetitive log messages. Use the alert email settings, to define the interval that emails are sent if the same
condition persists following the initial occurrence. See
FortiRecorder 7.0.0 Administration Guide
Fortinet Inc.
141.
Storage
Options.
Configuring alert email on page
markers in an existing continuous recording
Configuring log settings on page
135.
133.
139
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