Dynamic timeout period adjustment of service requests

• US 9,703,597 B2
• Filed: 04/27/2016
• Issued: 07/11/2017
• Est. Priority Date: 11/24/2015
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Gohil, Pradeep, Papageorgiou, Anthony P., Bates, Andrew P., Bohm, Fraser P.
• Primary Examiner(s): Sun, Charlie
• Application Number:
  US15/139,400
• Publication Number:
  US 20170147395A1
• Time in Patent Office: 440 Days
• CPC Class Codes: G06F 9/485 Task life-cycle, e.g. stopping, restarting, resuming execution G06F9/4881 takes precedence
• CPC Class Codes: G06F 9/4887 involving deadlines, e.g. rate based, periodic
• 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

According to one exemplary embodiment, a method for dynamically timing out a first process within a plurality of suspended processes is provided. The method may include determining that a second process is attempting to suspend. The method may also include determining if a number of suspended processes plus one is less than a threshold value. The method may then include selecting the first process within the plurality of suspended processes to prematurely time out based on determining that the number of suspended processes plus one is not less than the threshold value. The method may further include timing out the selected first process. The method may also include suspending the second process.

Claims

1. A processor-implemented method, the method comprising:

a series of steps to dynamically time out a first process within a plurality of suspended processes running on a server computer to maintain throughput at the server computer by;

determining, by a processor, that a second process running on the server computer is attempting to suspend;

determining whether a number of the plurality of suspended processes plus one is less than a threshold value, wherein the threshold value includes a variable based on a maximum concurrent processes value;

in response to the determining, if the number of the plurality of suspended processes plus one is not less than the threshold value, selecting the first process within the plurality of suspended processes to prematurely time out;

timing out the selected first process;

in response to the timing out the selected first process, incrementing the number of the plurality of suspended processes; and

suspending the second process.

2. The method of claim 1, wherein the threshold value comprises a variable based on at least a value range, and at least one measurable system condition.

3. The method of claim 1, wherein selecting the first process within the plurality of suspended processes to prematurely time out comprises selecting a suspended process having a lowest actual time remaining to time out from the plurality of suspended processes as the first process.

4. The method of claim 1, wherein selecting the first process within the plurality of suspended processes to prematurely time out comprises selecting a suspended process having a lowest percentage of a total timeout time remaining from the plurality of suspended processes as the first process.

5. The method of claim 1, wherein selecting the first process within the plurality of suspended processes to prematurely time out comprises ordering the plurality of suspended processes based on a workload priority value associated with each suspended process within the plurality of suspended processes and selecting a lowest workload priority process from the plurality of suspended processes as the first process.

6. The method of claim 1, further comprising:

removing the selected first process from the plurality of suspended processes; and

adding the second process to the plurality of suspended processes.