[Anthill-pro] What CPU usage is expected by Anthill server?
Ryan Smith
rws at urbancode.com
Thu May 22 08:40:46 CDT 2008
Everyone should be aware that the memory display was fixed in 3.5.1. Prior versions did not correctly display the memory.
The bottom of opt/tomcat/webapps/ROOT/WEB-INF/jsps/currentActivity/memory.jsp should be:
<br>
<div class="note">
<b>Memory:</b><br>
<%
Runtime runtime = Runtime.getRuntime();
long tm = runtime.totalMemory();
long fm = runtime.freeMemory();
long mm = runtime.maxMemory();
long um = tm - fm;
%>
Using <%= getNearestBytes((double) um) %> / <%= getNearestBytes((double) tm) %> bytes<br>
<%= getNearestBytes((double) fm) %> bytes free<br>
<%= getNearestBytes((double) mm) %> max memory<br>
</div>
Ryan
Yanko, Curtis wrote:
> Take a look at the resources tab and see how you are doing on memory.
> When it gets fully consume AHP BMS does some odd things. We have taken
> to upping the JVM memory size. Looking at my own BMS system on Windows
> it is a good, idle app waiting for work. (3.4.11)
>
>
> ===
> -Curt
> W: 860.702.9059
> M: 860.881.2050
>
> -----Original Message-----
> From: anthill-pro-bounces at lists.urbancode.com
> [mailto:anthill-pro-bounces at lists.urbancode.com] On Behalf Of Peter
> Steele
> Sent: Wednesday, May 21, 2008 9:10 PM
> To: rws at urbancode.com; AnthillPro user and support list.
> Subject: RE: [Anthill-pro] What CPU usage is expected by Anthill server?
>
> I agree of course that CPU usage is proportional to activity, but why
> would the Anthill server be consistently the highest CPU consumer, even
> at times when the system is essentially idle--no builds running, no
> cleanup processes running, no codestation resolves (we don't use this
> feature) and no UI activity (beyond anyone with windows open to the
> dashboard). I assume the server is constantly monitoring the agents,
> even if the agents are idle, but that should be the bulk of the
> activity. Are there figures on how well the Anthill server scales? We
> have currently have 50 agents configured, and this number will grow to
> 200+ over the next few months. Can the Anthill server handle this many
> agents?
>
> -----Original Message-----
> From: anthill-pro-bounces at lists.urbancode.com
> [mailto:anthill-pro-bounces at lists.urbancode.com] On Behalf Of Ryan Smith
> Sent: Wednesday, May 21, 2008 5:56 PM
> To: AnthillPro user and support list.
> Subject: Re: [Anthill-pro] What CPU usage is expected by Anthill server?
>
> Peter,
>
> The CPU usage is going to be proportional to the activity on the server.
> Activity includes running workflows, miscellaneous tasks like cleanup,
> UI activity and any remote Codestation resolves. There are other things
> that could cause high CPU usage such as memory thrashing. We are
> investigating potential memory problems with 3.5. If we find one, that
> could be the cause.
>
>
> Ryan Smith
>
> Peter Steele wrote:
>> Here's an interesting snapshot: This is the first few lines from the
>> "top" command:
>>
>>
>>
>> top - 15:26:49 up 64 days, 2:14, 3 users, load average: 0.10, 0.20,
> 0.25
>> Tasks: 143 total, 1 running, 142 sleeping, 0 stopped, 0 zombie
>>
>> Cpu(s): 19.8% us, 0.2% sy, 0.0% ni, 79.9% id, 0.0% wa, 0.0% hi,
> 0.2% si
>> Mem: 4109408k total, 3990708k used, 118700k free, 89004k
> buffers
>> Swap: 8385920k total, 144k used, 8385776k free, 3012000k
> cached
>>
>>
>> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+
>> COMMAND
>>
>> * 7778 root 18 0 530m 300m 8972 S 40 7.5 238:02.05
>> java
> *
>> 30397 root 16 0 7348 1068 772 R 0 0.0 0:29.29
>> top
>>
>> 1 root 16 0 4756 556 460 S 0 0.0 0:01.23 init
>>
>>
>> 2 root RT 0 0 0 0 S 0 0.0 0:01.91
>> migration/0
>>
>>
>>
>> As you can see, process 7778 is current the top CPU user. This is the
>> Anthill server. I rebooted the server just two days ago and it as
>> already consumed over 238 minutes of CPU time. Nothing else comes
> close
>> to this, and the system has been up for 64 days. This seems to be
>> pointing to some kind of problem. What should we expect as far as CPU
>> usage is concerned for the Anthill server process?
>>
>>
>>
>> *From:* anthill-pro-bounces at lists.urbancode.com
>> [mailto:anthill-pro-bounces at lists.urbancode.com] *On Behalf Of *Peter
> Steele
>> *Sent:* Wednesday, May 21, 2008 1:21 PM
>> *To:* AnthillPro user and support list.
>> *Subject:* RE: [Anthill-pro] What CPU usage is expected by Anthill
> server?
>>
>>
>> The server still seems to be a CPU hog, with it almost always being
> the
>> number one process on the "top" list, even when the system is largely
>> idol. We've added 40+ agents recently, but I did not check the
> server's
>> CPU usage before adding all the new agents, and I also did not what
> the
>> CPU usage was before upgrading to 3.5. Fortunately the command
> failures
>> we were seeing the other day appear to have stopped after the reboot,
>> although the GUI is still very slow to respond to many typical
> commands.
>> For example, it just took 30 seconds for Anthill to respond to a click
>
>> on a project displayed in the "Your Active Projects" column of the
>> Dashboard. This seems to be slower than what it was in 3.4.12, but as
> I
>> indicated we have added a lot of agents lately. We'll be adding more
> as
>> well, exceeding 100 agents in the next while. Is there anything we
>> should do to improve performance?
>>
>>
>>
>> *From:* anthill-pro-bounces at lists.urbancode.com
>> [mailto:anthill-pro-bounces at lists.urbancode.com] *On Behalf Of *Steve
> Boone
>> *Sent:* Wednesday, May 21, 2008 9:39 AM
>> *To:* AnthillPro user and support list.
>> *Subject:* Re: [Anthill-pro] What CPU usage is expected by Anthill
> server?
>>
>>
>> Peter,
>>
>> Has this been happening in a regular basis?
>>
>> What happened after the restart?
>>
>> On Wed, May 14, 2008 at 6:44 PM, Peter Steele <psteele at maxiscale.com
>> <mailto:psteele at maxiscale.com>> wrote:
>>
>> We've noticed some very slow feedback from the Anthill server today,
>> even coming back with failures for some operations. The Unix top
> command
>> is showing the ah3server process as taking as much as 100% CPU at
> times,
>> and is consistently the top 1 or 2 processes on the system. There are
>> just two builds going on, and both of course are running on agent
>> systems, not the server. I don't recall seeing this before. We
> upgraded
>> to 3.5 yesterday and I am wondering if that might be to blame. It's
>> certainly very slow right now; I'll restart the server as soon as the
>> builds are done...
>>
>>
>>
>>
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>>
>>
>>
>>
>>
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> --
> ===========================================================
> Ryan Smith. 2044 Euclid Ave., Suite 600
> Developer Cleveland, Ohio 44115
> Urbancode, Inc.
> email: rws at urbancode.com
> web: www.urbancode.com phone: 216-858-9000
> web: www.anthillpro.com fax: 216-858-9602
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--
===========================================================
Ryan Smith. 2044 Euclid Ave., Suite 600
Developer Cleveland, Ohio 44115
Urbancode, Inc.
email: rws at urbancode.com
web: www.urbancode.com phone: 216-858-9000
web: www.anthillpro.com fax: 216-858-9602
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