[ejabberd] -shared

Yermo Lamers yml at dtlink.com
Fri Sep 15 11:06:52 MSD 2006


Maybe I'm out of the loop, what ejabberd memory usage problem?

-- Yermo

> I guess my question is if you folks have seen any evidence that having
> shared heap is helping any.  Does it definitely improve ejabberd's
> memory usage problem?  Does it impact performance one way or another?
>
> --simon
>
>> -----Original Message-----
>> From: ejabberd-bounces at jabber.ru
>> [mailto:ejabberd-bounces at jabber.ru] On Behalf Of Matthew Reilly
>> Sent: Thursday, September 14, 2006 4:28 PM
>> To: ejabberd at jabber.ru
>> Subject: Re: [ejabberd] -shared
>>
>> To allow the -shared option, you can edit erts/Makefile
>> (under the OTP source dir) and set:
>>
>> BUILD_SHARED_EMU=true
>>
>> There is another option -hybrid (which should be built by
>> default except for Windows, VxVorks, and OSE) that tries to
>> get some of the same benfits by having per-process heaps as
>> well as a shared heap.
>>
>> I've never done much experimenting though with either of
>> these options, except when I've tried -hybrid on a web server
>> Erlang project, erlang would sometimes crash when doing
>> garbage collection. I had a C port driver in this case, so I
>> don't know if it was something that I did.
>>
>> On Thu, 2006-09-14 at 16:11 -0700, Simon Yeo wrote:
>> > So what is the deal with the "-shared" option?  There
>> doesn't seem to
>> > be much documentation on it.  We had it on when we were
>> running erlang
>> > R11B without really knowing whether it benefited us or not.
>> >
>> > But now that we've downgraded erlang to R10B, ejabberd no longer
>> > starts up when I add the -shared option.  So we're running
>> without the
>> > option now.  Any ideas?
>> >
>> > Thanks,
>> > --simon
>> > _______________________________________________
>> > ejabberd mailing list
>> > ejabberd at jabber.ru
>> > http://lists.jabber.ru/mailman/listinfo/ejabberd
>> --
>> Matthew Reilly
>> matthew.reilly at sipphone.com
>> Gizmo Project name: matt
>>
>>
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