Which Checksum Tool on Linux is Faster?

It is common practice to calculate the checksums for files to check its integrity. For large files, the checksum computation is slow. Now I am wondering why it is so slow and whether choosing another tool will be better. In this post, I try three common tools md5sum, sha1sum and crc32 to compute checksums on a relatively large file to see which checksum tool on Linux is faster to help us decide the choices of the checksum tool. » Read more

What Is the Name of the Linux-based OS: A Survey

You may already well know “Linux” and may also use the “operating system based on the Linux kernel” directly or indirectly (you are indirectly using it now as this site is hosted on Linux). But how should we name the OS based on Linux? You may know there is GNU/Linux naming controversy. Different people have different opinions about this. Today, let’s see how do these widely used distributions call themselves by looking at their “about” web pages. » Read more

When Twitter Taunt Leads to Poker Tournament

Gus Hansen and Daniel Negreanu Settled Score After a Twitter ‘Argument’.Twitter is considered an online social networking and microblogging service with “tweets”, text messages limited to 140 characters. With the only 140 characters, you would think that Twitter is not the right platform to organize an event. However, for two well-known poker players, the 140 characters are more than enough to announce a highly-anticipated poker tournament. » Read more

Systems Conferences and Deadlines

I compiled a list of good systems conferences and deadlines for my own reference. Here I share the list and hope it can help others who also need such a list. This list is kept updated.A PDF version: Systems Conference and Deadlines. Links to conference websites: Systems Conferences. » Read more

PUMA: A MapReduce Benchmark Suite

MapReduce is a well-known programming model designed for generating and processing large data. There are various MapReduce implementations. One widely known and used one may be Hadoop. Benchmarking MapReduce frameworks gets to be important. Faraz Ahmad et al. developed a benchmark suite: PUMA MapReduce Benchmark. During our work on MapReduce, we developed a benchmark suite which represents a broad range of MapReduce applications exhibiting application characteristics with high/low computation and high/low shuffle volumes. » Read more

Conferences on Cloud Computing 2013

This post lists important conferences related to Cloud Computing in year 2013. SOSP 2013 SOSP’13: The 24th ACM Symposium on Operating Systems Principles. November 3-6, 2013, Nemacolin Woodlands Resort, Pennsylvania.The biennial ACM Symposium on Operating Systems Principles is the world’s premier forum for researchers, developers, programmers, and teachers of computer systems technology. Academic and industrial participants present research and experience papers that cover the full range of theory and practice of computer systems software. » Read more

Conferences on Cloud Computing 2012

This post lists important conferences on Cloud Computing in year 2012. OSDI 2012 10th USENIX Symposium on Operating Systems Design and Implementation (OSDI ’12) October 8–10, 2012, Hollywood, CA “The tenth OSDI seeks to present innovative, exciting research in computer systems. OSDI brings together professionals from academic and industrial backgrounds in what has become a premier forum for discussing the design, implementation, and implications of systems software.” Important Dates Complete paper submissions: Thursday, May 3, 2012, 9:00 p.m. » Read more

Conferences on Cloud Computing 2011

This post lists important conferences on Cloud Computing in year 2011. ACM Symposium on Cloud Computing October 27 and 28, 2011, Cascais, Portugal Submission Deadline: April 30, 2011 23rd ACM Symposium on Operating Systems Principles (SOSP) October 23-26, 2011, Cascais, Portugal Submission deadline: March 18, 2011, 11:59 PM GMT EuroSys 2011 April 10-13, 2011. Salzburg, Austria. CLOUD COMPUTING 2011 The Second International Conference on Cloud Computing, GRIDs, and Virtualization September 25-30, 2011 – Rome, Italy Submission (full paper): April 20, 2011 » Read more