Methods and apparatus for command list processing in performing parallel IO operations
US10318354B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2017 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jun 2, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2209/5018
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Command list processing in performing parallel IO operations is disclosed. In one example, handling IO requests directed to an operating system having an IO scheduling component entails allocating a command to a thread in association with an IO request. The command is allocated from one of a plurality of command lists accessible in parallel, and the command is also linked to one of a plurality of active command lists that are accessible in parallel. The command lists can be arranged as per-CPU command lists, with each per-CPU command list corresponding to one of a plurality of CPUs on a multi-core processing platform on which the IO requests are processed. Similarly, each of the active command lists can respectively correspond to one of the plurality of CPUs on the multi-core processing platform. Per-volume queues can also be implemented for respective volumes presented to applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.