Configures the rate limiting burst limit (number of messages per interval) that is applied to all messages generated on the system. This rate limiting is applied per-service, so that two services which log do not interfere with each other's limit.
Note that the effective rate limit is multiplied by a factor derived from the available free disk space for the journal as described on journald.conf(5).
Note that the total amount of logs stored is limited by journald settings such as SystemMaxUse, which defaults to 10% the file system size (capped at max 4GB), and SystemKeepFree, which defaults to 15% of the file system size.
It is thus recommended to compute what period of time that you will be able to store logs for when an application logs at full burst rate. With default settings for log lines that are 100 Bytes long, this can amount to just a few hours.