[jira] [Created] (TS-2279) proxy.config.exec_thread.affinity's values

["Igor Galić (JIRA)" <ji...@apache.org>]

Igor Galić created TS-2279:
------------------------------

             Summary: proxy.config.exec_thread.affinity's values
                 Key: TS-2279
                 URL: https://issues.apache.org/jira/browse/TS-2279
             Project: Traffic Server
          Issue Type: Bug
          Components: Configuration
            Reporter: Igor Galić


The setting of {{proxy.config.exec_thread.affinity}} only has an affect when traffic server was compiled with {{--enable-hwloc}}. It has *no* affect at all, not even a warning about its being ineffectual when when setting that value while trafficserver is *not* configured with {{--enable-hwloc}}.

Further, mgmt/RecordsConfig.cc defines a range of {{[0-1]}}:
{code}
 {RECT_CONFIG, "proxy.config.exec_thread.affinity", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_READ_ONLY}
{code}

but the code uses a range of [0-3]:
{code}
#if TS_USE_HWLOC
    if (affinity != 0) {
      int logical_ratio;
      switch(affinity) {
      case 3:           // assign threads to logical cores
        logical_ratio = 1;
        break;
      case 2:           // assign threads to real cores
        logical_ratio = pu / cu;
        break;
      case 1:           // assign threads to sockets
      default:
        logical_ratio = pu / socket;
      }
{code}

And finally, 1 is the default value, rather than issuing a warning about an incorrect value.



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