[Pharo-dev] CPU usage change on newer OS

Norbert Hartl norbert at hartl.name
Fri Apr 25 08:47:22 EDT 2014


Ok, but it is the same vm. The one that comes from the pharo ppa.

Norbert

Am 25.04.2014 um 14:43 schrieb Guillermo Polito <guillermopolito at gmail.com>:

> I remember Igor made a comment not so long ago about fixing something in the idle process (the relinquishBlaBla primitive). Maybe it's related...
> 
> 
> On Fri, Apr 25, 2014 at 2:35 PM, Norbert Hartl <norbert at hartl.name> wrote:
> Here is mine. And it used to be around 2.
> 
> Norbert
> 
>  
> top - 12:33:02 up 16 days, 15:45,  1 user,  load average: 5,03, 6,69, 7,02
> Tasks:  30 total,   1 running,  29 sleeping,   0 stopped,   0 zombie
> %Cpu(s): 13,8 us,  0,6 sy,  0,5 ni, 82,9 id,  2,2 wa,  0,0 hi,  0,0 si,  0,0 st
> KiB Mem:  32834868 total, 31193000 used,  1641868 free,  1449816 buffers
> KiB Swap: 33553332 total,   672508 used, 32880824 free. 21207288 cached Mem
> 
>   PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
> 16667 mobility  20   0   72856  47096   2188 S   1,0  0,1  65:07.04 pharo-vm
> 22820 inbox     20   0   70500  43904   1344 S   1,0  0,1  26:37.38 pharo-vm
> 26745 events    20   0   70500  40692   1264 S   1,0  0,1 145:37.59 pharo-vm
> 32093 geo       20   0  136308  47268   1436 S   1,0  0,1  92:17.80 pharo-vm
> 10523 gcm       20   0   82528  53152   2284 S   0,7  0,2  94:52.39 pharo-vm
> 11531 sms       20   0   70628  42096   1380 S   0,7  0,1  91:49.13 pharo-vm
> 18739 stats     20   0   70496  41980   1384 S   0,7  0,1  45:30.60 pharo-vm
> 
> Am 25.04.2014 um 07:30 schrieb Sven Van Caekenberghe <sven at stfx.eu>:
> 
>> 
>> On 25 Apr 2014, at 01:19, Esteban A. Maringolo <emaringolo at gmail.com> wrote:
>> 
>>> What % of CPU is it using?
>>> 
>>> My VM on idle state consumes about ~4-5% CPU.
>> 
>> That is about what I am used to, here is a real view of an Amazon AWS EC2 Small Instance running 4 Pharo VMs:
>> 
>> top - 05:25:09 up 413 days, 15:27,  1 user,  load average: 0.88, 0.66, 0.49
>> Tasks:  73 total,   3 running,  70 sleeping,   0 stopped,   0 zombie
>> Cpu(s):  0.6%us,  0.4%sy,  0.0%ni, 96.3%id,  0.2%wa,  0.0%hi,  0.0%si,  2.5%st
>> Mem:   1706660k total,  1654928k used,    51732k free,   136692k buffers
>> Swap:        0k total,        0k used,        0k free,  1006556k cached
>> 
>>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                            
>> 31639 ubuntu    20   0 1030m  99m 1444 R  4.0  5.9  61:47.82 pharo                              
>>  4314 ubuntu    20   0 1030m 162m 1504 S  2.0  9.7 140:28.55 pharo                              
>>  8014 ubuntu    20   0 1030m  77m 1512 S  2.0  4.6 561:06.30 pharo                              
>> 31647 ubuntu    20   0 1030m  92m 1444 R  2.0  5.6  63:31.80 pharo                              
>>     1 root      20   0  3540 1392  732 S  0.0  0.1   0:58.61 init  
>> 
>> Sven
>> 
>>> Esteban A. Maringolo
>>> 
>>> 
>>> 2014-04-24 15:43 GMT-03:00 Norbert Hartl <norbert at hartl.name>:
>>>> I have a strange effect on my machines. I have a dedicated server and a lot of virtual instances using LXC. The last few days I migrated most projects of our projects from pharo2.0 to pharo3.0. And on the same time the images moved from an ubuntu 12.04. system to a ubuntu 14.04 system. Looking at the top command it appears the images/vms need noticable less CPU or better the tools report less. The monitored overall CPU usage also is much lesser than before.
>>>> 
>>>> This is not proved by any measurement. Has anyone an idea why this could happen or appear differently?
>>>> 
>>>> Norbert
>>>> 
>>> 
>> 
> 
> 

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