03c8e8d114
Getting row count on a db with approx 200000 entries on an RPi takes about 500ms. To avoid this, this branch keeps better track of entries in the DB and only queries DB count if we can't calculate it ourselves. Trimming itself takes some 150ms. To reduce those calls it changes the threshold of when to trim the DB from a fixed value of 100 to 1% of maxDBSize. Last but not least, getLogEntry() calls are now prioritized over appendLogEntry() calls in order to stay responsive to client apps even if the DB is overloaded with a huge job queue. If the job queue grows to over 1000 jobs, logs of the same device/type will be discared to avoid log flooding.