Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-22398

Add SystemInfo::numAvailableCores

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • 3.3.1
    • 3.3.3
    • Portability
    • None
    • Fully Compatible
    • Platforms 10 (02/19/16), Platforms 11 (03/11/16)

    Description

      SystemInfo::numCores is less useful than might be desired, because many forms of process management can limit access to a subset of total cores. This causes us to scale certain internal subsystems at suboptimal levels by assuming more processing than we actually have available.

      It would useful to have a new value available, perhaps numAvailableCores, which would return a num <= ::numCores.

      Consider the implementation of gnu nproc and investigate if a portable solution exists.

      Attachments

        Issue Links

          Activity

            People

              waley.chen Waley Chen
              jason.carey@mongodb.com Jason Carey
              Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: