[erlang-questions] msacc 21.3.2
Tue Mar 26 10:43:29 CET 2019
I’m using 21.3.2 (as in the title). My VM is already configured with
The Sleep column for Poll is 99.72%
And the Sleep column is the one with more %. The rest of the columns are
almost at 0%
I’m able to identify which process is using most the scheduler. It’s busy
looping on gen_tcp:send calls proxying binary data to other nodes on the
> First, which OTP version are you using?
> Second, try that on a fresh minor release — some scheduler issues were
> fixed recently.
> Third, try rebuilding OTP with ./configure
> --with-microstate-accounting=extra and
> check what are these schedulers doing (which columns have the most %)
> This could give some more valuable info.
> Also you may check which processes are using lots of scheduler time. Try
> using etop.
> After you find troubled processes, you may use fprof to determine which
> functions are slow. In simple case you can just see that in
> process_info(Pid, current_stacktrace).
> Good luck!
> On Tue, Mar 26, 2019 at 11:15 AM Frank Muller <frank.muller.erl@REDACTED>
>> Hi guys
>> msacc:print/1 is showing me that all my dirty_io_shed are busy 100%
>> (sleep column at 0.0%).
>> The vm is using more and more RAM.
>> How can I identify the issue?
>> erlang-questions mailing list
> Danil Zagoskin | z@REDACTED
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