Hi Sometimes, I get the "squidaio_queue_request: WARNING - Queue congestion"-message in the cache.log. On the output of "squidclient mgr:squidaio_counts" there is an entry "queue". Sometimes, this values increase to 1 oder 2. My question hereby: How many queue-entries must be fulfilled, until the "Queue congestion"-warning will be written to the cache.log? How high is the queue-watermark? Thanks a lot. Tom