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. Be sure to keep a sys on it. Info 3D XPoint: https://en.wikipedia.org/wiki/3D_XPoint Layton, J., and Barton, E. "Fast Forward Storage & IO," http://storageconference.us/2014/Presentations

_Beyond_the_Stall.pdf 28 hpc_001.html.gpg 196 hpc_001.html 24 hpc_001.html.gz.gpg [laytonjb@home4 TEMP]$ head -n 5 hpc_001.html   HPC Storage - Getting Started with IO profiling applications       Looks like plain text

to rely on simple ASCII tools to help debug the problems. I have found vmstat invaluable for diagnosing misbehaving nodes or checking or profiling user applications. For example, often when a user

Jeff Layton

 conducted. In this article we profile I/O at the block layer to help you make the best storage decisions. ... /O profiler, or ioprof. ioprof When I discovered that understanding the output of blktrace was not so easy, I looked around for some “postprocessing” tools and came across ioprof. The website introduces ...  conducted. In this article we profile I/O at the block layer to help you make the best storage decisions. ... I/O Profiling at the Block Level

Jeff Layton ... . Vuksan's RPMs were my saving grace in installing Ganglia. Thank you, Maciej and Vladimir. Infos "Monitoring HPC Systems: What Should You Monitor?" by Jeff Layton, http://www.admin-magazine

with my /home/layton directory on my local system (host = desktop ). I also access an HPC system that has its own /home/jlayton directory (the login node is login1 ). On the HPC system I only keep some

to big data, casino operators can create granular customer profiles. The Flamingo Hotel of Caesars Entertainment in Las Vegas alone employs 200 big data analysts. Specialized analytics solutions

). In fact, that’s the subject of the next article. The Author Jeff Layton has been in the HPC business for almost 25 years (starting when he was 4 years old). He can be found lounging around at a nearby

or sar+ksar). Others gather metrics for clusters (e.g., Ganglia or Cacti), and some come with plotting tools built-in using the RRDtool database. Some tools are specifically for performance profiling