Commits on Mar 2, 2024

1. logs: Guard frequently called logs behind if check …

   Moves a number of heavily called debug lines behind if checks to avoid
   needless allocations of Fields objects and stringification of fields.
   For cases where the server is not set to "debug" log level, these fields
   were allocated on the heap and then immediately discarded - as well a
   number of these were stringifying state / NLRIs regardless of log level.
   
   In servers with significant amounts of routes and BGP peers, this lead
   to a large amount of wasted allocations - in our case looking at Go's
   memory profiler, 25% of all allocations were from these lines alone.

   

   Dawn Minion authored and fujita committed Mar 2, 2024
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