xianglyc opened a new pull request, #15398: URL: https://github.com/apache/nuttx/pull/15398
By default in SMP, obtaining this_task requires disabling interrupts, obtaining the current CPU index, accessing a global variable, and re-enabling interrupts. Storing this_task in percpu makes retrieval faster. *Note: Please adhere to [Contributing Guidelines](https://github.com/apache/nuttx/blob/master/CONTRIBUTING.md).* ## Summary arch/x86_64: this_task is stored in the CPU private data *Update this section with information on why change is necessary, what it exactly does and how, if new feature shows up, provide references (dependencies, similar problems and solutions), etc.* ## Impact no impact *Update this section, where applicable, on how change affects users, build process, hardware, documentation, security, compatibility, etc.* ## Testing ostest *Update this section with details on how did you verify the change, what Host was used for build (OS, CPU, compiler, ..), what Target was used for verification (arch, board:config, ..), etc. Providing build and runtime logs from before and after change is highly appreciated.* -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
