[erlang-patches] SNMP performance optimization

Ivan Dubovik <>
Sat Dec 1 23:18:04 CET 2012


Hi.

Any feedback on my patch?

Ivan Dubovik

2012/11/17 Ivan Dubovik <>:
> Hi.
>
> I have a lot of agents:
> ets:i().
>  id              name              type  size   mem      owner
>  ----------------------------------------------------------------------------
> ...
>  snmpm_agent_table snmpm_agent_table set   42932  2287790  snmpm_config
>
>
> Was:
> fprof:analyse().
> ...
> {[{{snmpm_server,agent_data,2},                 513,11826.813,    4.607},
>   {undefined,                                     0,    0.446,    0.000}],
>  { {snmpm_config,agent_info,2},                 513,11827.259,    4.607},     %
>  [{{ets,match_object,2},                        513,11822.196,11524.680},
>   {{ets,select_trap,1},                           0,    0.446,    0.373},
>   {{snmpm_server,agent_data_item,2},              1,    0.010,    0.008}]}.
> ...
>
> Now:
> {[{{snmpm_server,agent_data,2},                 906,   20.413,    6.341}],
>  { {snmpm_server,agent_data_item,2},            906,   20.413,    6.341},     %
>  [{{snmpm_config,agent_info,2},                 906,   14.072,    7.743}]}.
>
>
>
> git fetch git://github.com/IvanDubovik/otp.git snmp_optimization
> https://github.com/IvanDubovik/otp/compare/snmp_optimization
> https://github.com/IvanDubovik/otp/compare/snmp_optimization.patch


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