[SR-Users] MTREE reload question

Mon Sep 10 14:27:01 CEST 2012

thanks a lot.
so as i undestand, the real_used_size is the right value to calculate size.
but, it grows because of fragmentation data.
in the core, what does it mean "It is effective if MEM_JOIN_FREE compile
option is defined"
is there something else i need to do except adding to the cfg the
mem_join=1 ?

On Mon, Sep 10, 2012 at 2:39 PM, Daniel-Constantin Mierla <miconda at gmail.com
> wrote:

>  Hello,
>
>
> On 9/10/12 1:14 PM, Uri Shacked wrote:
>
>   Thanks,
>
> The stuff i sent is from my test server that has 3.3.1 installed.
>
> On my prod servers i use 3.2.x.
>
> how would you explain that when kamailio starts (on prod with similar data
> and same cfg) it take around 20% of the shmem, after reload 30% and in time
> (6-8 weeks) it gets up to 39% ?
>
>
> if used_size does not have variations, then it is no leak. The variations
> of real_used_size is from fragmentation management -- each fragment has a
> structure associated to it.
>
> Cheers,
> Daniel
>
>
>   I start with 4G of shmem.
>
> It feels like a leak but i have trouble investigating it.... where would
> you look? The reload, the dialog or the avp's?
>
> BR,
>
> Uri
>
>
>  On Mon, Sep 10, 2012 at 11:06 AM, Daniel-Constantin Mierla <
> miconda at gmail.com> wrote:
>
>>  Hello,
>>
>> the used size is pretty much the same after the reload, so doesn't look
>> as leak. If you do 2-3 reloads is shmem:used_size staying around same value?
>>
>> It is clear boost in the fragments, I would say that after start the
>> number of fragments is quite low, because it should contain the good
>> records in memory as well.
>>
>> Btw, the version 3.3.x has options for defragmentation, see the core
>> cookbook, you can enable it.
>>
>> Cheers,
>> Daniel
>>
>>
>>
>> On 9/9/12 10:18 AM, Uri Shacked wrote:
>>
>>   Hi,
>>
>> here is the statistics after kamailio starts:
>>
>> shmem:fragments = 28
>> shmem:free_size = 3800871312
>> shmem:max_used_size = 494132368
>> shmem:real_used_size = 494095984
>> shmem:total_size = 4294967296
>> shmem:used_size = 342642072
>>
>> here it is after reload of the num table:
>>
>> shmem:fragments = 9161531
>> shmem:free_size = 3654274496
>> shmem:max_used_size = 959885552
>> shmem:real_used_size = 640692800
>> shmem:total_size = 4294967296
>> shmem:used_size = 342654552
>>  here is the cfg part for mtree:
>>
>> #------- mtree params -------------
>> modparam("mtree", "db_url", CFGDB)
>> modparam("mtree", "mtree", "name=odr;dbtable=service_odr_view;type=0;")
>> modparam("mtree", "mtree", "name=oper;dbtable=service_oper_type;type=0;")
>> modparam("mtree", "mtree",
>> "name=permis;dbtable=service_permisions_to_oper;type=0;")
>> modparam("mtree", "mtree",
>> "name=num;dbtable=service_numbers_to_areas_view;type=0;")
>> modparam("mtree", "char_list", "0123456789")
>> modparam("mtree", "pv_value", "$avp(mtval)")
>> modparam("mtree", "pv_values", "$avp(mtvals)")
>>
>> here is the number of raws from the DB:
>>
>> SELECT count(*) FROM `service`.`service_numbers_to_areas_view` = 4195528
>>
>> and attached is the memory log.
>>
>> thanks,
>> Uri
>>
>>
>> On Fri, Sep 7, 2012 at 10:26 AM, Daniel-Constantin Mierla <
>> miconda at gmail.com> wrote:
>>
>>>  Hello,
>>>
>>> is this taken only after startup? Get one at startup and another one
>>> after reload, so it can be compared.
>>>
>>> Cheers,
>>> Daniel
>>>
>>>
>>> On 9/6/12 9:22 AM, Uri Shacked wrote:
>>>
>>>  Hi,
>>>
>>> here:
>>>
>>> shmem:fragments = 143898
>>> shmem:freesize = 3446570952
>>> shmem:max_used_size = 861854768
>>> shmem:real_used_size = 848396344
>>> shmem:total_size = 4294967296
>>> shmem:used_size = 319676976
>>>
>>>
>>>
>>> On Thu, Sep 6, 2012 at 9:49 AM, Daniel-Constantin Mierla <
>>> miconda at gmail.com> wrote:
>>>
>>>> Hello,
>>>>
>>>>
>>>> On 9/5/12 3:06 PM, Uri Shacked wrote:
>>>>
>>>>> Hi,
>>>>> I use MTREE to load 5 million rows from the database. it takes about
>>>>> 30 sec to start kamailio and it is running great.
>>>>> Whern I check the shmem usage I see the data take about 0.8G out of 4G
>>>>> i set on shmem.
>>>>> When i reload the data while kamailio is running, the memory usage
>>>>> rises to 1.3G and stays there (the second and next reloads stays on 1.3G as
>>>>> well).
>>>>> Why doesn't it return to 0.8G after the reload is completed?
>>>>>
>>>>
>>>>  can you send the statistics related to shmem?
>>>>
>>>> kamctl fifo get_statistics shmem:
>>>>
>>>> There are different values there, some usage come from overhead of
>>>> memory chunks management.
>>>>
>>>> Cheers,
>>>> Daniel
>>>>
>>>> --
>>>> Daniel-Constantin Mierla - http://www.asipto.com
>>>> http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>>>> Kamailio Advanced Training, Berlin, Nov 5-8, 2012 -
>>>> http://asipto.com/u/kat
>>>> Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 -
>>>> http://asipto.com/u/katu
>>>>
>>>>
>>>
>>> --
>>> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>>> Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat
>>> Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - http://asipto.com/u/katu
>>>
>>>
>>
>>
>> --
>> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>> Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat
>> Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - http://asipto.com/u/katu
>>
>>
>
> --
> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
> Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat
> Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - http://asipto.com/u/katu
>
>
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