[jira] [Created] (TS-2992) EThread schedule fast_signal default

["Otto van der Schaaf (JIRA)" <ji...@apache.org>]

Otto van der Schaaf created TS-2992:
---------------------------------------

             Summary: EThread schedule fast_signal default
                 Key: TS-2992
                 URL: https://issues.apache.org/jira/browse/TS-2992
             Project: Traffic Server
          Issue Type: Task
          Components: Core
            Reporter: Otto van der Schaaf
         Attachments: ethread.patch

For ats_speed, changing the fast_signal argument's default from false to true  in I_EThread::schedule helped improve latency when scheduling an event from an external thread pool (up to 5 ms per scheduled operation).

This ticket at least documents this fact, and can perhaps serve as a discussion point. Perhaps it's worth it to make a setting out of this hard coded default.

I'm not sure that setting fast_signal to true would be a good idea in general, as there probably is a cost to it. It was working fine for us though, and considering ats_speed's cause (leaning towards favoring user agents) I think it can sometimes be beneficial. 



--
This message was sent by Atlassian JIRA
(v6.2#6252)