The presentation material you've added seems to include English contents throughout the slide. I think that It can be listed on the public presentation.
Best regards, Hyunsik On Tue, Mar 10, 2015 at 6:20 PM, Jihoon Son <[email protected]> wrote: > I've added it. > Thanks! > Jihoon > > On Wed, Mar 11, 2015 at 9:28 AM Hyunsik Choi <[email protected]> wrote: > >> Great work! Thank you for your effort. >> >> Could you add your materials to the wiki page at >> https://cwiki.apache.org/confluence/display/TAJO/Presentations? >> >> It will be helpful to those who want to find Tajo documentation materials. >> >> Best regards, >> Hyunsik >> >> >> On Thu, Feb 26, 2015 at 9:37 PM, Jihoon Son <[email protected]> wrote: >> > Hi guys, >> > I have conducted some brief performance evaluations of Tajo on Swift, and >> > would like to share the results. >> > >> > I conducted two kinds of experiments; The first experiment was to compare >> > the performance of Tajo with on another distributed storage, i.e., HDFS. >> > And the second experiment was the scalability test of Swift. >> > >> > Interestingly, the scan performance on Swift is slower more than two >> times >> > than that on HDFS. In addition, the task scheduling time on Swift is much >> > greater than that on HDFS, which means the query initialization cost is >> > very high. You can find the detailed results at the following link. >> > >> > http://www.slideshare.net/jihoonson/apache-on-tajo- >> bringing-sql-to-the-openstack-world >> > >> > Based on those evaluation results, I would like to add some new features >> to >> > improve the performance of Tajo on Swift. For example, progressive task >> > scheduling can mitigate the query initialization cost on Swift. In >> > addition, we need to support location-aware computing for segmented Swift >> > objects. Sooner or later, I will create issues on Jira. >> > >> > Best Regards, >> > Jihoon >>
