The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 30, 2024

Filed:

Aug. 16, 2021
Applicant:

Vmware, Inc., Palo Alto, CA (US);

Inventors:

Yang Bai, Beijing, CN;

Wenchao Cui, Beijing, CN;

Haitao Guo, Beijing, CN;

Ran Peng, Beijing, CN;

Tianji Zhao, Beijing, CN;

Assignee:

VMware, Inc., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/22 (2006.01); G06F 13/24 (2006.01); G06F 9/38 (2018.01); G06F 9/455 (2018.01);
U.S. Cl.
CPC ...
G06F 13/22 (2013.01); G06F 9/3867 (2013.01); G06F 9/45558 (2013.01); G06F 13/24 (2013.01); G06F 2009/45579 (2013.01);
Abstract

An adaptive hybrid polling technique combines an interrupt mode with a polling mode, and is based on outstanding input/output (OIO) determination to improve I/O performance and to save processor cycles. The OIO includes two types of I/O commands: (1) I/O commands submitted to storage devices for processing, and (2) I/O commands completed by the storage devices but not yet acknowledged by host software. The adaptive hybrid polling technique involves two phases to determine when to poll based on current OIO commands. In the first phase, a determination is made whether there is an adequate number of the first type of OIO commands to prepare for polling. In the second phase, a determination is made whether there is an adequate number of the second type of OIS commands to activate polling.


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