Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende Überarbeitung | ||
software:linux:realtime:testeddevices [2019-02-08 14:58] – mgehrig2 | software:linux:realtime:testeddevices [2023-04-11 09:53] (aktuell) – Urs Graf | ||
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The maximum jitter of a device roughly describes how well real-time requirements can be met.. | The maximum jitter of a device roughly describes how well real-time requirements can be met.. | ||
If a device has a maximum jitter of 100us, then it must be expected that an event is handled up to 100us too late. | If a device has a maximum jitter of 100us, then it must be expected that an event is handled up to 100us too late. | ||
- | |||
- | TODO wie gemessen? | ||
==== Tips ==== | ==== Tips ==== | ||
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to show the installed hardware. | to show the installed hardware. | ||
- | + | ===== Low Jitter (<40us) ===== | |
- | + | ||
- | **Note**: The jitter measurements here describe jitter performance, | + | |
- | Depending on the installed kernel and running software the jitter may be worse. | + | |
- | Better performance is possible, if the system is tweaked better. | + | |
- | + | ||
- | These benchmarks were made to test the hardware. | + | |
- | + | ||
- | + | ||
- | ===== Low Jitter (<30us) ===== | + | |
* **Dell Tower OPTIPLEX 9010** | * **Dell Tower OPTIPLEX 9010** | ||
* ~30us max jitter | * ~30us max jitter | ||
- | * 2 x i7-3770 | + | * 2 x i7-3770 @3.4Gz |
- | ===== Medium Jitter (30us...10us) ===== | + | ===== Medium Jitter (40us...100us) ===== |
- | * **[[https:// | + | * **[[https:// |
* ~100us max jitter | * ~100us max jitter | ||
- | * 2 x i7-4650U | + | * 2 x i7-4650U |
- | ===== High Jitter (>10us) ===== | + | ===== High Jitter (>100us) ===== |
* **Laptop Dell Latitude E5530** | * **Laptop Dell Latitude E5530** | ||
* ~250us max jitter | * ~250us max jitter |