[ 
https://issues.apache.org/jira/browse/STORM-671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14336600#comment-14336600
 ] 

ASF GitHub Bot commented on STORM-671:
--------------------------------------

Github user revans2 commented on a diff in the pull request:

    https://github.com/apache/storm/pull/442#discussion_r25346357
  
    --- Diff: storm-core/src/clj/backtype/storm/daemon/executor.clj ---
    @@ -410,7 +410,11 @@
         (disruptor/clojure-handler
           (fn [tuple-batch sequence-id end-of-batch?]
             (fast-list-iter [[task-id msg] tuple-batch]
    -          (let [^TupleImpl tuple (if (instance? Tuple msg) msg 
(.deserialize deserializer msg))]
    +          (let [[deserialize-time ^TupleImpl tuple] (if (instance? Tuple 
msg) [0.0 msg] (with-time (.deserialize deserializer msg)))]
    --- End diff --
    
    In all other cases the timings were sampled (we didn't measure everything). 
 Not totally sure if we can do the same thing here or not.


> Measure tuple serialization/deserialization latency.
> ----------------------------------------------------
>
>                 Key: STORM-671
>                 URL: https://issues.apache.org/jira/browse/STORM-671
>             Project: Apache Storm
>          Issue Type: New Feature
>            Reporter: Robert Joseph Evans
>            Assignee: Kai Sasaki
>
> Some times the serialization/deserialization cost can be very high, and it is 
> not currently measured anywhere in storm.  We should measure it, at least in 
> a similar way to how we do execute and process latency.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to