CPU usage change on newer OS
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
What % of CPU is it using? My VM on idle state consumes about ~4-5% CPU. Esteban A. Maringolo 2014-04-24 15:43 GMT-03:00 Norbert Hartl <norbert@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
On 25 Apr 2014, at 01:19, Esteban A. Maringolo <emaringolo@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@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
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@stfx.eu>:
On 25 Apr 2014, at 01:19, Esteban A. Maringolo <emaringolo@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@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
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@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@stfx.eu>:
On 25 Apr 2014, at 01:19, Esteban A. Maringolo <emaringolo@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@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
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@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@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@stfx.eu>:
On 25 Apr 2014, at 01:19, Esteban A. Maringolo <emaringolo@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@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
Am 25.04.2014 um 01:19 schrieb "Esteban A. Maringolo" <emaringolo@gmail.com>:
What % of CPU is it using?
On the old instance it is a stable 2% and on the new it is 1-1,3 %. That was the reason making me looking at it. I was so used to the 2 % I spotted the difference immediately. Norbert
My VM on idle state consumes about ~4-5% CPU. Esteban A. Maringolo
2014-04-24 15:43 GMT-03:00 Norbert Hartl <norbert@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
participants (4)
-
Esteban A. Maringolo -
Guillermo Polito -
Norbert Hartl -
Sven Van Caekenberghe