Hi Azeez, Looks really good in terms of performance.
Thanks, Senaka. On Thu, Aug 8, 2013 at 9:25 AM, Danushka Fernando <[email protected]>wrote: > Thats what my question was about. Thanks Azeez. > > Thanks & Regards > Danushka Fernando > Software Engineer > WSO2 inc. http://wso2.com/ > Mobile : +94716332729 > > > On Wed, Aug 7, 2013 at 5:28 PM, Afkham Azeez <[email protected]> wrote: > >> >> >> >> On Wed, Aug 7, 2013 at 2:59 PM, Danushka Fernando <[email protected]>wrote: >> >>> Hi, >>> Just wondering about the update mechanism. What happens when original >>> value or L2 cache value get updated? >>> >> >> I think the question is, if the L2 (distributed) cache got updated from >> another node, how does it get reflected in the L1 caches of the other >> nodes. We register an entry listener for the L2 cache, and whenever there >> is a change, this gets triggered, and updates the L1 caches as well. >> >> >>> >>> Thanks & Regards >>> Danushka Fernando >>> Software Engineer >>> WSO2 inc. http://wso2.com/ >>> Mobile : +94716332729 >>> >>> >>> On Wed, Aug 7, 2013 at 2:02 PM, Afkham Azeez <[email protected]> wrote: >>> >>>> [image: Inline image 1] >>>> >>>> >>>> On Wed, Aug 7, 2013 at 11:31 AM, Afkham Azeez <[email protected]> wrote: >>>> >>>>> While running certain scenarios during testing of the Carbon 4.2.0 >>>>> packs, we saw certain performance issues when distributed Hazelcast >>>>> HashMaps are used as the backing data structure. To overcome this, I have >>>>> introduced the concept of an L1 local cache. It is a write through cache, >>>>> where items stored in it will also get written to the distributed data >>>>> structure. When there is a L1 cache miss, we will check in the L2 >>>>> distributed cache to see whether the value is there. >>>>> >>>>> I am seeing significant performance improvement in the tenant creation >>>>> scenario after this improvement. >>>>> >>>>> -- >>>>> *Afkham Azeez* >>>>> Director of Architecture; WSO2, Inc.; http://wso2.com >>>>> Member; Apache Software Foundation; http://www.apache.org/ >>>>> * <http://www.apache.org/>** >>>>> email: **[email protected]* <[email protected]>* cell: +94 77 3320919 >>>>> blog: **http://blog.afkham.org* <http://blog.afkham.org>* >>>>> twitter: >>>>> **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez> >>>>> * >>>>> linked-in: **http://lk.linkedin.com/in/afkhamazeez* >>>>> * >>>>> * >>>>> *Lean . Enterprise . Middleware* >>>>> >>>> >>>> >>>> >>>> -- >>>> *Afkham Azeez* >>>> Director of Architecture; WSO2, Inc.; http://wso2.com >>>> Member; Apache Software Foundation; http://www.apache.org/ >>>> * <http://www.apache.org/>** >>>> email: **[email protected]* <[email protected]>* cell: +94 77 3320919 >>>> blog: **http://blog.afkham.org* <http://blog.afkham.org>* >>>> twitter: >>>> **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez> >>>> * >>>> linked-in: **http://lk.linkedin.com/in/afkhamazeez* >>>> * >>>> * >>>> *Lean . Enterprise . Middleware* >>>> >>>> _______________________________________________ >>>> Dev mailing list >>>> [email protected] >>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>> >>>> >>> >> >> >> -- >> *Afkham Azeez* >> Director of Architecture; WSO2, Inc.; http://wso2.com >> Member; Apache Software Foundation; http://www.apache.org/ >> * <http://www.apache.org/>** >> email: **[email protected]* <[email protected]>* cell: +94 77 3320919 >> blog: **http://blog.afkham.org* <http://blog.afkham.org>* >> twitter: **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez> >> * >> linked-in: **http://lk.linkedin.com/in/afkhamazeez* >> * >> * >> *Lean . Enterprise . Middleware* >> > > > _______________________________________________ > Dev mailing list > [email protected] > http://wso2.org/cgi-bin/mailman/listinfo/dev > > -- * <http://us13.wso2con.com/> * * * *Senaka Fernando* Senior Technical Lead; WSO2 Inc.; http://wso2.com* Member; Apache Software Foundation; http://apache.org E-mail: senaka AT wso2.com **P: +1 408 754 7388; ext: 51736*; *M: +94 77 322 1818 Linked-In: http://linkedin.com/in/senakafernando *Lean . Enterprise . Middleware
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