Workload apportionment according to mean and variance

Details Workload apportionment according to mean and variance Workload apportionment according to mean and variance

2011-04-19

2011-04-19

Tran, Vincent T (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000, C713S322000, C713S324000, C709S217000, C709S223000, C709S225000, C718S105000

Reexamination Certificate

active

07930573

ABSTRACT:
An improved method is provided for managing workload on a multi-server computer system. In one embodiment, a subset of servers is selected according to an anticipated net workload. The remaining servers in the system may be powered off to conserve energy and prolong equipment life. Workload is dynamically apportioned among the subset of servers at selected intervals to more uniformly distribute the mean and variance of the workload among the subset of servers. More particularly, the mean and the variance for each of a plurality of workload units are equally weighed in determining a ranking of the workload units. The workload units may be ordered according to a mathematical combination of the mean and variance, such as the sum or product of mean and variance for each workload unit. The workload units are allocated among the subset of servers in according to rank, such as by assigning the workload units to the servers in a reverse round-robin fashion according to rank. Predictive power management schemes such as DVS and DVFS may then be used to control power to the servers.

REFERENCES:
patent: 5867706 (1999-02-01), Martin et al.
patent: 6223205 (2001-04-01), Harchol-Balter et al.
patent: 6681251 (2004-01-01), Leymann et al.
patent: 6748413 (2004-06-01), Bournas
patent: 6795928 (2004-09-01), Bradley et al.
patent: 7260113 (2007-08-01), Lynn et al.
patent: 2002/0007463 (2002-01-01), Fung
patent: 2003/0158940 (2003-08-01), Leigh
patent: 2003/0177406 (2003-09-01), Bradley et al.
patent: 2004/0047289 (2004-03-01), Azami et al.
patent: 2004/0103194 (2004-05-01), Islam et al.
patent: 2004/0107273 (2004-06-01), Biran et al.
patent: 2004/0236817 (2004-11-01), Huberman et al.
patent: 2007/0043808 (2007-02-01), Agnoli et al.
patent: 2008/0222646 (2008-09-01), Sigal et al.
patent: 2009/0007101 (2009-01-01), Azar et al.

Affiliated with

Also associated with

Rating

Workload apportionment according to mean and variance does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Workload apportionment according to mean and variance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Workload apportionment according to mean and variance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2696694