IO::Async::Metrics(3pmUser Contributed Perl DocumentatiIO::Async::Metrics(3pm)
NAME
"IO::Async::Metrics" - report metrics about "IO::Async" to
"Metrics::Any"
DESCRIPTION
This module contains the implementation of metrics-reporting code from
"IO::Async" to provide information about its operation into
Metrics::Any.
METRICS
The following metrics are reported:
io_async_forks
A counter giving the number of times that fork(2) has been called by
the IO::Async::Loop.
io_async_notifiers
A gauge giving the number of IO::Async::Notifiers currently registered
with the Loop.
io_async_processing
A time distribution giving the amount of time spent processing IO
events. This time does not include the time spent blocking on the
underlying kernel system call to wait for IO events, but only the time
spent in userland afterwards to handle them.
io_async_resolver_lookups
A labelled counter giving the number of attempted lookups by the
IO::Async::Resolver.
This metric has one label, "type", containing the type of lookup; e.g.
"getaddrinfo".
io_async_resolver_failures
A labelled counter giving the number of Resolver lookups that failed.
This is labelled as for "io_async_resolver_lookups".
io_async_stream_read
A counter giving the number of bytes read by IO::Async::Stream
instances. Note that for SSL connections, this will only be able to
count bytes of plaintext, not ciphertext, and thus will be a slight
under-estimate in this case.
io_async_stream_written
A counter giving the number of bytes written by Stream instances. Note
again for SSL connections this will only be able to count bytes of
plaintext.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.34.0 2022-08-19 IO::Async::Metrics(3pm)
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