How does the slide scheduling work on the Information Monitors?
Each slide is dependent on the frequency and wait_time (seconds since slide was last shown).
You can change the frequency for a set of slides (How do I do this?).
Slides gain priority the longer they wait. This prevents starvation (cases where slides are never shown).
Priority for each slide is calculated as:
wait_time priority = ------------------------ (frequency x 60 seconds)
Slides that spend a long time waiting 'compete' against lower frequency slides.
The slide with the highest priority is shown. For example:
Priority (x100) | Slide Path | frequency (min) | wait_time (sec) | Shown |
---|---|---|---|---|
12.50 | .../4-standard/slide1.html | 4 | 30 | |
3.33 | .../5-standard/slide2.html | 5 | 10 | |
16.66 | .../10-standard/slide3.html | 10 | 100 | X |
14.58 | .../20-standard/slide4.html | 20 | 175 |
N.B. Slide1 has the lowest frequency (4 mins). Slide4 has waited the longest (175 seconds).
Regardless of this; slide3 will still be shown as it has waited the longest while taking into account the frequency.
You can view the scheduler for your Infomation Monitor to help get a better idea of this (where do I do that?).
Information Services, Aberystwyth University, Hugh Owen Library, Penglais, Aberystwyth, SY23 3DZ
Tel: 01970 62 2400 Email: is@aber.ac.uk