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[MESOS-9252] Avoid copying the value in hashmap::get. - Mesos - [issue]
...Stout's hashmap copies the value out when calling hashmap::get.Ideally, this could return an Option<Value&>....
http://issues.apache.org/jira/browse/MESOS-9252    Author: Benjamin Mahler , 2018-09-23, 01:09
[MESOS-9239] Improve sorting performance in the DRF sorter. - Mesos - [issue]
...The sorting performance of the DRF sorter is negatively affected by the use of hashmaps introduced originally in MESOS-4964.Storing a cache-friendlier data structure and avoiding hashing ove...
http://issues.apache.org/jira/browse/MESOS-9239    Author: Benjamin Mahler , 2018-09-22, 23:12
[MESOS-6765] Consider making the Resources wrapper "copy-on-write" to improve performance. - Mesos - [issue]
...Resources currently directly stores the underlying resource objects:class Resources{  ...  std::vector<Resource_> resources;};What this means is that copying of Resources (wh...
http://issues.apache.org/jira/browse/MESOS-6765    Author: Benjamin Mahler , 2018-09-21, 22:45
[MESOS-9249] Avoid dirtying the DRF sorter when allocating resources. - Mesos - [issue]
...The perf data that Meng Zhu provided revealed that when there are many frameworks, the DRFSorter::sort() function ends up dominating the time spent during an allocation cycle.To improve perf...
http://issues.apache.org/jira/browse/MESOS-9249    Author: Benjamin Mahler , 2018-09-21, 22:38
[Performance WG] Meeting Notes - September 19 - Mesos - [mail # dev]
...Thanks to those who joined: Yan Xu, Chun-Hung Hsiao, Meng Zhu, Carl DellarNotes:(1) I forgot to mention during the meeting that more progress has happenedon the parallel reads of master stat...
   Author: Benjamin Mahler , 2018-09-20, 06:36
[Performance WG] Meeting Reminder: September 19 - Mesos - [mail # dev]
...Just a reminder that the meeting today will go ahead as planned.There are no guest presentations this time around, but as usual we'll goover the exciting work that's been happening lately. F...
   Author: Benjamin Mahler , 2018-09-19, 07:22
[MESOS-9242] Resources wrapper loses shared resource count information. - Mesos - [issue]
...The Resources wrapper stores a Resource_ wrapper type that stores multiple copies of the a shared resource in a single Resource_ with a shared count.On the output paths Resources, we lose th...
http://issues.apache.org/jira/browse/MESOS-9242    Author: Benjamin Mahler , 2018-09-18, 17:51
[MESOS-9235] Add per-Process event queue counters in libprocess. - Mesos - [issue]
...Currently, a few Processes have one-off event queue size metrics computed using PullGauges. This approach has several known disadvantages: Getting event queue size metrics for a Process requ...
http://issues.apache.org/jira/browse/MESOS-9235    Author: Benjamin Mahler , 2018-09-15, 21:41
[MESOS-9236] Add per-Process event queuing delay metrics. - Mesos - [issue]
...In a similar style to MESOS-9235, we can introduce per-Process metrics that capture the trip time through event queues on a per-Process basis. This could be used to get a better sense of how...
http://issues.apache.org/jira/browse/MESOS-9236    Author: Benjamin Mahler , 2018-09-15, 21:41
[MESOS-9237] Add http handler metrics in libprocess. - Mesos - [issue]
...In a similar spirit to MESOS-9235, we can introduce per-route http metrics in libprocess to get a better sense of how long responses take to complete: The biggest window of time that we can ...
http://issues.apache.org/jira/browse/MESOS-9237    Author: Benjamin Mahler , 2018-09-15, 21:40