How to monitor CPU credits and CPU balance for an instance with multiple vCPUs
his is a chart of the CPU utilization, and the CPUCredit in my t3.small instance:
According to the documentation, an instance will only use CPU credits when the CPU utilization is above the baseline. If the instance has more than one vCPU, the baseline performance will be shown at the original level.
If I understand correctly, the instance should use CPU credits only when utilization is above 20%. In the chart, it seems like CPU credits are consumed even when the utilization is lower. Why is that?
amazon-ec2 amazon-cloudwatch
asked Dec 31 '18 at 12:50
hakihaki
5,62093681
add a comment |
his is a chart of the CPU utilization, and the CPUCredit in my t3.small instance:
According to the documentation, an instance will only use CPU credits when the CPU utilization is above the baseline. If the instance has more than one vCPU, the baseline performance will be shown at the original level.
If I understand correctly, the instance should use CPU credits only when utilization is above 20%. In the chart, it seems like CPU credits are consumed even when the utilization is lower. Why is that?
amazon-ec2 amazon-cloudwatch
asked Dec 31 '18 at 12:50
hakihaki
5,62093681
Is the time resolution in above graph 1min and the aggregation method forCPUUtilizationset toMax? If not, can you please post another graph with the mentioned settings!?
– Dunedan
Dec 31 '18 at 13:58
Thanks @Dunedan, once I changed the aggregation method toMaxthe chart made sense. If you post an answer i'll accept. Thank :)
– haki
Dec 31 '18 at 14:40
add a comment |
his is a chart of the CPU utilization, and the CPUCredit in my t3.small instance:
According to the documentation, an instance will only use CPU credits when the CPU utilization is above the baseline. If the instance has more than one vCPU, the baseline performance will be shown at the original level.
If I understand correctly, the instance should use CPU credits only when utilization is above 20%. In the chart, it seems like CPU credits are consumed even when the utilization is lower. Why is that?
amazon-ec2 amazon-cloudwatch
asked Dec 31 '18 at 12:50
hakihaki
5,62093681
his is a chart of the CPU utilization, and the CPUCredit in my t3.small instance:
According to the documentation, an instance will only use CPU credits when the CPU utilization is above the baseline. If the instance has more than one vCPU, the baseline performance will be shown at the original level.
If I understand correctly, the instance should use CPU credits only when utilization is above 20%. In the chart, it seems like CPU credits are consumed even when the utilization is lower. Why is that?
amazon-ec2 amazon-cloudwatch
amazon-ec2 amazon-cloudwatch
asked Dec 31 '18 at 12:50
hakihaki
5,62093681
asked Dec 31 '18 at 12:50
hakihaki
5,62093681
asked Dec 31 '18 at 12:50
hakihaki
5,62093681
asked Dec 31 '18 at 12:50
hakihaki
5,62093681
asked Dec 31 '18 at 12:50
hakihaki
5,62093681
5,62093681
Is the time resolution in above graph 1min and the aggregation method forCPUUtilizationset toMax? If not, can you please post another graph with the mentioned settings!?
– Dunedan
Dec 31 '18 at 13:58
Thanks @Dunedan, once I changed the aggregation method toMaxthe chart made sense. If you post an answer i'll accept. Thank :)
– haki
Dec 31 '18 at 14:40
add a comment |
Is the time resolution in above graph 1min and the aggregation method forCPUUtilizationset toMax? If not, can you please post another graph with the mentioned settings!?
– Dunedan
Dec 31 '18 at 13:58
Thanks @Dunedan, once I changed the aggregation method toMaxthe chart made sense. If you post an answer i'll accept. Thank :)
– haki
Dec 31 '18 at 14:40
Is the time resolution in above graph 1min and the aggregation method for
CPUUtilization set to Max? If not, can you please post another graph with the mentioned settings!?– Dunedan
Dec 31 '18 at 13:58
Is the time resolution in above graph 1min and the aggregation method for
CPUUtilization set to Max? If not, can you please post another graph with the mentioned settings!?– Dunedan
Dec 31 '18 at 13:58
Thanks @Dunedan, once I changed the aggregation method to
Max the chart made sense. If you post an answer i'll accept. Thank :)– haki
Dec 31 '18 at 14:40
Thanks @Dunedan, once I changed the aggregation method to
Max the chart made sense. If you post an answer i'll accept. Thank :)– haki
Dec 31 '18 at 14:40
add a comment |
1 Answer
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The graph in your answer shows the average CPU utilization per time period. For the calculation of CPU credit usage however it's relevant how the maximum CPU utilization per minute looks like. Therefore if you change the aggregation method of your CPU utilization from average to maximum you should see a graph which makes more sense.
answered Dec 31 '18 at 15:16
DunedanDunedan
2,11051422
add a comment |
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1 Answer
1
active
oldest
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The graph in your answer shows the average CPU utilization per time period. For the calculation of CPU credit usage however it's relevant how the maximum CPU utilization per minute looks like. Therefore if you change the aggregation method of your CPU utilization from average to maximum you should see a graph which makes more sense.
answered Dec 31 '18 at 15:16
DunedanDunedan
2,11051422
add a comment |
The graph in your answer shows the average CPU utilization per time period. For the calculation of CPU credit usage however it's relevant how the maximum CPU utilization per minute looks like. Therefore if you change the aggregation method of your CPU utilization from average to maximum you should see a graph which makes more sense.
answered Dec 31 '18 at 15:16
DunedanDunedan
2,11051422
add a comment |
The graph in your answer shows the average CPU utilization per time period. For the calculation of CPU credit usage however it's relevant how the maximum CPU utilization per minute looks like. Therefore if you change the aggregation method of your CPU utilization from average to maximum you should see a graph which makes more sense.
answered Dec 31 '18 at 15:16
DunedanDunedan
2,11051422
The graph in your answer shows the average CPU utilization per time period. For the calculation of CPU credit usage however it's relevant how the maximum CPU utilization per minute looks like. Therefore if you change the aggregation method of your CPU utilization from average to maximum you should see a graph which makes more sense.
answered Dec 31 '18 at 15:16
DunedanDunedan
2,11051422
answered Dec 31 '18 at 15:16
DunedanDunedan
2,11051422
answered Dec 31 '18 at 15:16
DunedanDunedan
2,11051422
answered Dec 31 '18 at 15:16
DunedanDunedan
2,11051422
2,11051422
add a comment |
add a comment |
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Is the time resolution in above graph 1min and the aggregation method for
CPUUtilizationset toMax? If not, can you please post another graph with the mentioned settings!?– Dunedan
Dec 31 '18 at 13:58
Thanks @Dunedan, once I changed the aggregation method to
Maxthe chart made sense. If you post an answer i'll accept. Thank :)– haki
Dec 31 '18 at 14:40