[SR-Users] memory usage

[Marius Zbihlei]

On 09/05/2012 11:44 AM, Uri Shacked wrote:
> Hi,
> Thanks,
> How do i find memory leaks?
> when my application starts the it shows the following values:
> shmem:fragments = 143898
> shmem:freesize = 3446570952
> shmem:max_used_size = 861854768
> shmem:real_used_size = 848396344
> shmem:total_size = 4294967296
> shmem:used_size = 319676976
> I divided the "real_used_size" with the "total_size" and notice that 
> it is 20%. So, this is my initial value of the application.
> After 2 months with 40,000 calls per day, the relations between these 
> values is 39%. (doing a reload of the data that occupies 20% failed 
> due to "no memory")
> So, 19% occupation of memory is normal for this amount of calls? or is 
> it a memory leak? if it is a memeory leak, how do i see where?
Hello,

Too little information to go on here. A reload might fail mostly because 
data from the DB (e.g. with carrierroute case) is first loaded into 
private memory (the sql result). Depending of the module there are other 
tricks you could do (decrease the number of fetch rows the query returns 
etc.). The out of memory condition affects shared or private mem. Try to 
use at least 15 MB for PKG mem.

If the 39% is with traffic, then it's normal, if you don't have any 
traffic I still would not worry. The thing that worries me a little is 
the value, you are using from the start around 0.8 GB of used shared 
memory... this is a lot. From the percentages you provided it looks ok....

Marius
> Uri
> On 09/05/2012 10:19 AM, Uri Shacked wrote:
> >/Hi, />/When I start kamailio it loads some data into memory. />/Now 
> calls are starting to gather up. How can I check how mach memory 
> />/does my avp's take? />/BR, />/Uri /Hello Uri,
>
> avp's are associated with the transactions, so they free'd when the
> transaction stops(and calls are composed of transactions). This is true
> for dialog information as well (dlg_var's etc.). Continuous growth in
> memory at a constant call rate (incoming sip requests) might mean a
> leak. If you need statistics about the total memory usage you can use
> `kamctl fifo get_statistics all` and check for the shmem real_used_size
> and max_used_size fields.
>
> Cheers,
> Marius
>
> -- 
> Zbihlei Marius
>
> Head of
> Linux Development Services Romania
>


-- 
Zbihlei Marius

Head of
Linux Development Services Romania

1&1 Internet Development srl    Tel KA: 754-9152
Str Mircea Eliade 18            Tel RO: +40-31-223-9152
Sect 1, Bucuresti               mailto: marius.zbihlei at 1and1.ro
71295, Romania

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