Methods and systems for improving performance of streaming media sessions
A method for improving performance of a streaming media session between a plurality of communicating entities. Observation reports are collected from a plurality of monitoring entities. Each observation report includes information pertaining to events observed and recorded at a corresponding monitoring entity. A size of at least one window to be used for analyzing the observation reports is determined. The observation reports are analyzed using the at least one window of the determined size, to determine a correlation between the events across the observation reports. A problem encountered during the streaming media session is identified, based upon the correlation between the events. A notification is sent to at least one of the monitoring entities, based upon the problem. The notification is sent during the streaming media session.
1. A method for analyzing a streaming media session between at least two communicating entities, wherein at least one media stream comprising at least two packets is communicated or in communication between the at least two communicating entities during the streaming media session, the method comprising:
processing a plurality of observations, recorded by at least two monitoring entities as a function of time based on synchronized clocks and pertaining to the communication between the at least two communicating entities, to determine a session quality related to the communication, the processing including processing a given set of pre-processed observations that fall inside a time window and associating the pre-processed observations of the given set with correlated events; and
sending at least one notification to at least one of the at least two monitoring entities, in response to the session quality satisfying at least one quality criterion.
2. The method of claim 1 , wherein said sending at least one notification occurs during the streaming media session, and further including selecting, from amongst a plurality of available servers, at least one server that is in a proximity of the at least two communicating entities.
3. The method of claim 1 , further including configuring the at least two monitoring entities including using synchronizing clocks of the at least two monitoring entities.
4. The method of claim 1 , further including configuring the at least two monitoring entities to record the plurality of observations, and wherein the at least one notification comprises at least one of: statistical data pertaining to the session quality, instructions to perform a corrective action.
5. The method of claim 1 , further including one of said at least two monitoring entities forwarding the at least one media stream between the at least two communicating entities.
6. The method of claim 1 , wherein said processing includes selecting the time window with respect to a timeline that is common to certain of the plurality of observations.
7. The method of claim 1 , wherein said processing includes determining correlated events pertaining to the given set of pre-processed observations.
8. The method of claim 1 , wherein said processing includes: selecting the time window with respect to a common timeline; and determining correlated events pertaining to the given set of pre-processed observations.
9. The method of claim 1 , wherein the plurality of observations includes at least one packet arrival characteristic observed for the at least one media stream and/or the at least two packets.
10. The method of claim 1 , wherein the plurality of observations includes at least one media rendering characteristic observed for the at least one of the at least two communicating entities during rendering of the at least one media stream.
11. The method of claim 1 , wherein the plurality of observations includes at least one transport address characteristic observed for the at least one of the at least two communicating entities.
12. The method of claim 1 , wherein the plurality of observations includes at least one device property observed for the at least one of the at least two communicating entities.
13. The method of claim 1 , wherein the plurality of observations includes at least one environmental property observed for the at least one of the at least two communicating entities.
14. The method according to claim 1 , wherein the processing includes at least one of: grouping the plurality of observations, filtering the plurality of observations, and rearranging the plurality of observations in a one-dimensional or multi-dimensional series.
15. The method of claim 1 , wherein the processing includes sampling at least a subset of the plurality of observations.
16. The method of claim 1 , wherein the processing includes correlating the plurality of observations.
17. The method of claim 1 , wherein the processing includes filtering and sampling at least a subset of the plurality of observations.
18. The method of claim 1 , wherein the processing is performed based on at least one of: timestamps associated with the plurality of observations; and measured packet propagation delays occurring between at least one network entity and the at least one of the at least two communicating entities and/or between at least one transmitting entity and at least one receiving entity from amongst the at least two communicating entities.
19. The method of claim 1 , wherein the processing is performed based on at least one of: markers associated with the at least two packets, the markers being assigned to the at least two packets in a monotonically-increasing manner; and correlation of similar observations either occurring within respective timelines of the at least two monitoring entities or occurring within respective marker-lines of the at least two monitoring entities.
20. The method of claim 1 , wherein the time window is selected based upon a parameter which is a function of a delay associated with communication involving the at least two communicating entities.