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From Yakov Zhdanov <yzhda...@apache.org>
Subject Re: 10X decrease in performance with Ignite 2.0.0
Date Thu, 11 May 2017 21:58:43 GMT
Sergi Vladykin, do you think getAll() operation on B-Tree will help here?
Now getAll() is a sequence of constant-time lookups. Situation is different
for tree structures. So, we can traverse the tree only once given we have
keys belonging to a single partition?


2017-05-12 0:48 GMT+03:00 Yakov Zhdanov <yzhdanov@apache.org>:

> How many values are in your cache?
> SLB? What is it?
> >Will there be any difference between 1.9 and 2.0 if you send the same
> >number of empty jobs?
> >None. Exact same code
> .
> I want you to check if compute engine became slower in your deployment. If
> you comment out all lookups inside the job and run the code against 1.9 and
> 2.0 clusters would they show the same results?
> >It all local processing. And a lot of it. CPU sits around 80-90%.
> >The compute data is not small, so we colocate the compute w/ the data.
> >NOTE: the Results of the compute is small. a few 100 bytes.
> Agree, colocated jobs are the only choice here.
> Btw, what instance types do you use?
> --Yakov

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