Re: [squid-users] squidclient mgr:squidaio_counts -> Meaning of the "queue"-Entry

On 26/03/11 01:41, Tom Tux wrote:
> 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?

N*2. N being the queue size when last warning was made.

ie, the queue starts low (IIRC it starts at 8 entries per thread with 64
threads = 512 open/close/read/write/create/erase operations for the
first warning), then queue capacity doubles in size every warning.

Amos

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