- Patent Title: Delayed allocation of an out-of-order queue entry and based on determining that the entry is unavailable, enable deadlock avoidance involving reserving one or more entries in the queue, and disabling deadlock avoidance based on expiration of a predetermined amount of time
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Application No.: US14623049Application Date: 2015-02-16
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Publication No.: US10296348B2Publication Date: 2019-05-21
- Inventor: Khary J. Alexander , Ilya Granovsky , Jonathan T. Hsieh , Christian Jacobi
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPROATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPROATION
- Current Assignee Address: US NY Armonk
- Agency: Heslin Rothenberg Farley & Mesiti P.C.
- Agent William Kinnaman, Jr., Esq.; Blanche E. Schiller, Esq.
- Main IPC: G06F9/38
- IPC: G06F9/38
Abstract:
A queue management capability enables allocation and management of tracking queue entries, such as load and/or store queue entries, at execution time. By introducing execution-time allocation of load/store queue entries, the allocation point of those entries is delayed further into the execution stage of the instruction pipeline, reducing the overall time the entry remains allocated to a specific instruction. The queue management capability may also resolve deadlock conditions resulting from execution-time allocation of the queue entries and/or provide a mechanism to avoid such deadlock conditions.
Public/Granted literature
- US20160239311A1 MANAGEMENT OF TRACKING QUEUES USED IN OUT-OF-ORDER PROCESSING WITHIN COMPUTING ENVIRONMENTS Public/Granted day:2016-08-18
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