Server resource allocation

• US 8,321,569 B2
• Filed: 12/17/2009
• Issued: 11/27/2012
• Est. Priority Date: 12/17/2009
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Bello, Adekunle, Griffith, Douglas, Krishnasamy, Somasundaram, Yedavilli, Aruna
• Primary Examiner(s): DAILEY, THOMAS J
• Application Number:
  US12/640,268
• Publication Number:
  US 20110153825A1
• Time in Patent Office: 1,076 Days
• Field of Search: 709/217, 709/226
• US Class Current: 709/226
• CPC Class Codes: G06F 2209/5021 Priority
• CPC Class Codes: G06F 9/5038 considering the execution order of a plurality of tasks, e.g. taking priority or time dependency constraints into consideration scheduling strategies G06F9/4881 and subgroups

Abstract

A method, programmed medium and system are disclosed which provide for end-to-end QoS for a set of processes that comprise a workload over nfs. A set of processes that comprise a workload such as the processes of a WPAR, or an entire LPAR are given a class designation and assigned priority/limits. The data are then passed to the server which allocates resources based on the sum total of all the current classes and their priorities and/or limits. This requires re-engineering the nfs client code to be workload-aware and the nfs server code to accommodate the resource allocation and prioritization needs of the nfs clients.

Claims

1. A computer program product comprising a computer-readable, tangible storage device(s) and computer-readable program instructions stored on the computer-readable, tangible storage device(s) for enabling processing of transactions between an nfs server and nfs clients, the computer-readable program instructions, when executed by a processor system, being operable for implementing a method comprising:

receiving a workload request from an nfs client, said workload request having been assigned a class designation by said nfs client;

initiating an nfs workload handler and a resource table at said nfs server in response to receiving said workload request from said nfs client;

calculating a relative priority of said workload request from said nfs client among other existing workloads of other nfs clients to provide a prioritized listing of workload requests; and

allocating nfs resources by said nfs server based on a sum total of all current classes of workload requests at said nfs server, wherein said nfs server processing is modified to accommodate said nfs allocation of resources and said nfs client is made aware of said allocating of nfs resources at said nfs server, wherein said nfs server is further operable for adding said nfs allocation of resources to a resource table at said nfs server, and wherein said nfs server is further operable for passing said prioritized listing of said nfs client workload requests down to underlying levels at said nfs server.

2. The computer program product as set forth in claim 1 wherein said nfs server is further operable for passing said prioritized listing of said nfs client workload requests down to a task scheduler, file system and disk input-output (I/O) system at said nfs server.

3. The computer program product as set forth in claim 2 wherein said allocating is accomplished on a continuing basis upon receiving additional workload requests from one or more nfs clients.

4. The computer program product as set forth in claim 3 wherein said nfs server is further operable for deleting information associated with said nfs client from said resource table upon completion of said workload request from said nfs client.

5. The computer program product as set forth in claim 1 wherein said nfs server is further operable for assigning priorities to said workload requests from said nfs client.

6. The computer program product as set forth in claim 5 wherein said nfs server is further operable for assigning limits to said workload requests from said nfs client.

7. The computer program product as set forth in claim 6 wherein said nfs resources are allocated by said nfs server based on all current classes, priorities and limits of workload requests received at said nfs server.

8. A network file system (nfs) server configured for processing transactions with nfs clients, said nfs server comprising:

receiving means for receiving a workload request from an nfs client, said workload request having been assigned a class designation by said nfs client;

a processing system for initiating an nfs workload handler and a resource table at said nfs server in response to receiving said workload request from said nfs client;

said processing system being further operable for calculating a relative priority of said workload request from said nfs client among other existing workloads of other nfs clients to provide a prioritized listing of workload requests; and

said processing system being further operable for allocating nfs resources by said nfs server based on a sum total of all current classes of workload requests at said nfs server, wherein said nfs server processing is modified to accommodate said nfs allocation of resources and said nfs client is made aware of said allocating of nfs resources at said nfs server, wherein said nfs server is further operable for adding said nfs allocation of resources to a resource table at said nfs server, and wherein said nfs server is further operable for passing said prioritized listing of said nfs client workload requests down to underlying levels at said nfs server.

9. A network file system (nfs) including an nfs server and a plurality of nfs clients connected in a network, said nfs server being configured for processing transactions with said nfs clients, said nfs system comprising:

a plurality of nfs clients;

an nfs server coupled to said nfs clients;

a client processing system at said nfs client for assigning a class designation, a priority designation and appropriate limits to a workload request of said nfs server;

a client interface for sending said workload request to said nfs server;

an nfs server receiving device for receiving a workload request from an nfs client, said workload request having been assigned a class designation, a priority designation and appropriate limits by said nfs client;

said nfs server device being operable for initiating an nfs workload handler and a resource table at said nfs server in response to receiving said workload request from said nfs client;

an nfs server processing system for calculating a relative priority of said workload request from said nfs client among other existing workloads of other nfs clients to provide a prioritized listing of workload requests;

said nfs processing system being operable for allocating nfs resources by said nfs server based on a sum total of all current classes, priorities and limits of workload requests at said nfs server, said nfs processing system being further operable for modifying processing at said nfs server to accommodate said nfs allocation of resources and means for making said nfs client aware of said allocating of nfs resources at said nfs server;

said nfs processing system being further operable for adding said nfs allocation of resources to a resource table at said nfs server; and

said nfs processing system being further operable for passing said prioritized listing of said nfs client workload requests down to underlying levels at said nfs server, said underlying levels including a task scheduler, file system and disk input-output (I/O) system at said nfs server, wherein said allocating is accomplished on a continuing basis upon receiving additional workload requests from one or more nfs clients, said nfs system further including deleting information associated with said nfs client from said resource table upon completion of said workload request from said nfs client.