Programm optimization¶
If there are problems with a large CPU load or lack of memory in configuration with large number of streams, then you can optimize the settings.
You can disable the MPEG-TS filtering and processing features if you don’t need to.By default, the stream has the Clean All Unnecessary Data function enabled, disable it if there is no unwanted data in the stream. Disabling these features completely will remove the Original Media Information section of the Report.
You can completely disable or change Mosaic settings. A completely disabling is done in the server settings. You can disable it individually for each stream, or change the update interval with the Check Interval setting.
Growth of memory consumption with a large number of streams. PSS periodically returns unused memory to the operating system, and the shipped systemd unit limits by default the number of parallel memory allocation pools (the MALLOC_ARENA_MAX environment variable). This curbs the gradual growth of RSS when working with dozens of streams and is not a consequence of a leak. Changing the value manually is usually not required.
Queue overload errors for DBStat and DBEPG databases¶
Errors occur due to insufficient databases performance — slow storage is used or the system is overloaded.
Databases location is configured by the data-dir parameter in the pss.properties configuration file.
Possible solutions of the problem:
Moving database files to /tmp. The system memory will be used, requires an estimate of free memory and setting up the storage time of statistics (see server settings). When the system restarts, the data will be lost.
Reduce the statistics detalization — see dbstat-detail. 5 sec by default. Can be increased up to 20.
Place the EPG database in memory — set the
dbepg-memory=trueparameter.
