On Wed, Aug 7, 2013 at 12:00 PM, Dhanuka Ranasinghe <[email protected]>wrote:
> > > *Dhanuka Ranasinghe* > > Senior Software Engineer > WSO2 Inc. ; http://wso2.com > lean . enterprise . middleware > > phone : +94 715381915 > > > 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. >> > > Is this L1 concept similar to first level caching in Hibernate? which > means first level caching stores in memory, and flush them to second level > caching (file system) later. > No it is not exactly the same. The flushing here is done immediately. I didn't want to complicate it until it becomes necessary. > >> 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* >> >> _______________________________________________ >> Architecture mailing list >> [email protected] >> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >> >> > > _______________________________________________ > Architecture mailing list > [email protected] > https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture > > -- *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*
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