Re: bearebox eating cpu time

[Nikos Balkanas]

Pretty descent system. I hope it isn't the system with the fried motherboard 
:-)

Can you post again the output of top, or better mpstat or sar? Seems someone 
deleted this from the thread.

8% is reasonably low under traffic. However, when there is none, it is a 
cause for concern. I presume you have maximum level logs and nothing shows 
there either. Something strange is happening with your setup. In my case, 
starting up bearerbox without *any* traffic is @0% CPU as expected. Try that 
on another server with no traffic.

You should run a process debugger, truss in Solaris, to see what system 
calls it makes during that 8%. Maybe the periodic polling of your modem 
bank? Are you using SIM buffering?

BR,
Nikos
----- Original Message ----- 
From: "Alvaro Cornejo" <cornejo.alv...@gmail.com>
To: "Nikos Balkanas" <nbalka...@gmail.com>
Cc: <alejandro.guerri...@gmail.com>; "users" <users@kannel.org>
Sent: Friday, March 26, 2010 11:11 PM
Subject: Re: bearebox eating cpu time


Hi Nikkos

I do have a dual cpu dual core xeon with 4GB Ram

[r...@srvcom1 ~]# dmesg | grep -i "hz"
Detected 1596.575 MHz processor.
hpet0: 3 64-bit timers, 14318180 Hz
CPU0: Intel(R) Xeon(R) CPU            5110  @ 1.60GHz stepping 06
CPU1: Intel(R) Xeon(R) CPU            5110  @ 1.60GHz stepping 06
CPU2: Intel(R) Xeon(R) CPU            5110  @ 1.60GHz stepping 06
CPU3: Intel(R) Xeon(R) CPU            5110  @ 1.60GHz stepping 06
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
eth0: Broadcom NetXtreme II BCM5708 1000Base-T (B1) PCI-X 64-bit 133MHz
found at mem f8000000, IRQ 16, node addr 0015c5e7e0a1
eth1: Broadcom NetXtreme II BCM5708 1000Base-T (B1) PCI-X 64-bit 133MHz
found at mem f4000000, IRQ 16, node addr 0015c5e7e0a3


Maybe I expressed the issue wrong.

By eating cpu time I mean that even if there is no traffic MO/MT
bearerbox process uses the same amount of cpu time.

Regards

Alvaro

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2010/3/26 Nikos Balkanas <nbalka...@gmail.com>:
Well, if you had a store filesystem problem, you would get waiting I/O CPU
in your top, which you don't. You can verify with:

iostat 1 10

Anyway, why do you say that 8% CPU is excessive? It seems normal to me. 
How
much did it use to be? What is your CPU hardware?

BR,
Nikos
----- Original Message ----- From: "Alvaro Cornejo"
<cornejo.alv...@gmail.com>
To: <alejandro.guerri...@gmail.com>
Cc: "users" <users@kannel.org>
Sent: Friday, March 26, 2010 4:43 AM
Subject: Re: bearebox eating cpu time


I monitor kannel queue in order to manage the amount of kannel queued
messages and be able to loadbalance the messages from different
customers. Therefore I never have more that 1000 messages in kannel
queue. Usually arround 400. I do have a pool of modems so that is
aprox a 5 min queue.

Therefore I don't think the problem comes from there.

Any other idea?

Thanks

Alvaro


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On Thu, Mar 25, 2010 at 9:57 PM, Β <alejandro.guerri...@gmail.com> wrote:

You get the dubious benefit of losing your store if the server crashes ;)

However, if you're using ext3 for the store and it grows too big, this is
known to cause io problems which could result into high load. Using a
separate ext2 partition for the store is actually a very good idea, 
though
I'd check the rest of the setup for other possible bottlenecks as well.

Regards,

Alex

BlackBerry de movistar, allΞ½ donde estΞΉs estΞ± tu oficin@

________________________________
From: Alvaro Cornejo <cornejo.alv...@gmail.com>
Date: Thu, 25 Mar 2010 21:37:39 -0400
To: Benaiad<bena...@gmail.com>
Cc: users<users@kannel.org>
Subject: Re: bearebox eating cpu time
Hi Benaiad

I don't get it. Why should I use ramdisk for MT?

Do you mean move kannel to run from the ramdisk? What advantage might I
get
if the rest of the information (mysql) and my app is still running from
HD?

Regards

Alvaro



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On Thu, Mar 25, 2010 at 9:05 PM, Benaiad <bena...@gmail.com> wrote:

Hi Alvaro,
I suggest you to try ramdisk for MT files.
Regards.
--
Benaiad