System and method to enable power related decisions in a virtualization environment
A virtualization system includes an information handling system with a power detector that detects a power level of the information handling system and another power detector that detects another power level of the information handling system, a power status module, and a virtual machine manager that starts workloads on the information handling system. The power status module receives the power levels and sends the power levels to the virtual machine manager. The virtual machine manager apportions a first portion of the first power level to the first workload, apportions a second portion of the first power level to the second workload, apportions a first portion of the second power level to the first workload, and apportions a second portion of the second power level to the second workload.
1. A virtualization system comprising:
a first power detector that detects a first power level of the virtualization system;
a second power detector that detects a second power level of the virtualization system;
a power status module; and
a virtual machine manager operable to start first and second workloads on the virtualization system;
wherein the power status module:
receives the first power level and the second power level; and
sends the first power level and the second power level to the virtual machine manager; and
wherein the virtual machine manager:
apportions a first portion of the first power level to the first workload;
apportions a second portion of the first power level to the second workload;
apportions a first portion of the second power level to the first workload; and
apportions a second portion of the second power level to the second workload.
2. The virtualization system of claim 1 , wherein further the virtual machine manager determines a first total power level for the first workload, the first total power level being a sum of the first portion of the first power level and the first portion of the second power level.
3. The virtualization system of claim 2 , wherein further the virtual machine manager:
determines a second total power level for the second workload, the second total power level being a sum of the second portion of the first power level and the second portion of the second power level; and
apportions a first processing cost to the first workload and a second processing cost to the second workload, the ratio of the first processing cost to the second processing cost being equal to the ratio of the first total power level to the second total power level.
4. The virtualization system of claim 1 , wherein further:
the first power level is associated with a first element of the virtualization system and the second power level is associated with a second element of the virtualization system;
the virtual machine manager includes:
a first power budget for the first element;
a second budget for the second element;
a first power allocation for a third workload, the first power allocation being associated with the first element; and
a second power allocation for the third workload, the second power allocation being associated with the second element; and
the virtual machine manager is operable to start the third workload on the virtualization system in response to determining that
the sum of the first power level and the first power allocation is not greater than the first power budget; and
the sum of the second power level and the second power allocation is not greater than the second power budget.
5. The virtualization system of claim 1 , wherein further the power status module determines a third power level, the third power level being a difference of the first power level and the second power level.
6. The virtualization system of claim 5 , wherein further:
the power status module sends the third power level to the virtual machine manager; and
the virtual machine manager:
apportions a first portion of the third power level to the first workload; and
apportions a second portion of the third power level to the second workload.
7. The virtualization system of claim 1 , wherein the power status module comprises an application programming interface.
8. A method comprising:
receiving at a power status module a first power level of an information handling system;
receiving a second power level of the information handling system;
sending the first power level and the second power level to a virtual machine manager of a virtualization environment;
apportioning in the virtual machine manager:
a first portion of the first power level to a first workload of the information handling system;
a second portion of the first power level to a second workload of the information handling system;
a first portion of the second power level to the first workload; and
a second portion of the second power level to the second workload.
9. The method of claim 8 , further comprising determining in the virtual machine manager a first total power level for the first workload, the first total power level being a sum of the first portion of the first power level and the first portion of the second power level.
10. The method of claim 9 , further comprising:
determining in the virtual machine manager a second total power level for the second workload, the second total power level being a sum of the second portion of the first power level and the second portion of the second power level; and
apportioning in the virtual machine manager a first processing cost to the first workload and a second processing cost to the second workload, the ratio of the first processing cost to the second processing cost being equal to the ratio of the first total power level to the second total power level.
11. The method of claim 8 , wherein:
the first power level is associated with a first element of the information handling system and the second power level is associated with a second element of the information handling system;
the virtual machine manager includes:
a first power budget for the first element;
a second budget for the second element;
a first power allocation for a third workload, the first power allocation being associated with the first element; and
a second power allocation for the third workload, the second power allocation being associated with the second element; and
the method further comprises:
determining in the virtual machine manager that:
the sum of the first power level and the first power allocation is not greater than the first power budget; and
the sum of the second power level and the second power allocation is not greater than the second power budget; and
in response to determining, starting the third workload on the information handling system.
12. The method of claim 8 , further comprising determining in the power status module a third power level, the third power level being a difference of the first power level and the second power level.
13. The method of claim 12 , further comprising:
sending the third power level to the virtual machine manager; and
apportioning in the virtual machine manager a first portion of the third power level to the first workload; and
apportioning in the virtual machine manager a second portion of the third power level to the second workload.
14. The method of claim 8 , wherein the power status module comprises an application programming interface.
15. Machine-executable code for an information handling system comprising a first resource, wherein the machine-executable code is embedded within a non-transitory medium and includes instructions for carrying out a method comprising:
receiving a first power level of the information handling system;
receiving a second power level of the information handling system; and
apportioning:
a first portion of the first power level to a first workload of the information handling system;
a second portion of the first power level to a second workload of the information handling system;
a first portion of the second power level to the first workload; and
a second portion of the second power level to the second workload.
16. The machine-executable code of claim 15 , the method further comprising determining a first total power level for the first workload, the first total power level being a sum of the first portion of the first power level and the first portion of the second power level.
17. The machine-executable code of claim 16 , the method further comprising:
determining a second total power level for the second workload, the second total power level being a sum of the second portion of the first power level and the second portion of the second power level; and
apportioning a first processing cost to the first workload and a second processing cost to the second workload, the ratio of the first processing cost to the second processing cost being equal to the ratio of the first total power level to the second total power level.
18. The machine-executable code of claim 15 , wherein:
the first power level is associated with a first element of the information handling system and the second power level is associated with a second element of the information handling system;
the virtual machine manager includes:
a first power budget for the first element;
a second budget for the second element;
a first power allocation for a third workload, the first power allocation being associated with the first element; and
a second power allocation for the third workload, the second power allocation being associated with the second element; and
the method further comprises:
determining that:
the sum of the first power level and a first power allocation for a third workload is not greater than a first power budget for the first element, wherein the first power allocation is associated with the first element; and
the sum of the second power level and a second power allocation for the third workload is not greater than the second power budget, wherein the second power allocation is associated with the second element; and
in response to determining, starting the third workload on the information handling system.
19. The machine-executable code of claim 15 , the method further comprising determining a third power level, the third power level being a difference of the first power level and the second power level.
20. The machine-executable code of claim 19 , the method further comprising apportioning:
a first portion of the third power level to the first workload; and
a second portion of the third power level to the second workload.