Third-party send to active and passive TCP sockets

[Ulf Wiger]

On Wed, 27 Oct 1999, Jim Larson wrote:

jim>Does the Erlang process scheduler look at the depth of message
jim>queues in order to avoid overflows?

No, the scheduler doesn't, but then again, the message queues don't usually
overflow, since they are dynamically resized.

You can perform the check yourself, using 

  process_info(Pid, message_queue_len) -> {message_queue_len, L}

which is a very fast operation. This can be used for simple load
regulation, based on the assumption that if a process has e.g. > 100
messages in its queue, it may be falling behind.

/Uffe

Ulf Wiger, Chief Designer AXD 301         <ulf.wiger@REDACTED>
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