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Graphics

Visualizing System Latency 68

Posted by timothy
from the picture-says-1000-64-bit-words dept.
ChelleChelle writes "Latency has a direct impact on performance — thus, in order to identify performance issues it is absolutely essential to understand latency. With the introduction of DTrace it is now possible to measure latency at arbitrary points; the problem, however, is how to visually present this data in an effective manner. Toward this end, heat maps can be a powerful tool. When I/O latency is presented as a visual heat map, some intriguing and beautiful patterns can emerge. These patterns provide insight into how a system is actually performing and what kinds of latency end-user applications experience."
Earth

Sticky Rice Is the Key To Super Strong Mortar 194

Posted by timothy
from the what-can't-sticky-rice-do? dept.
lilbridge writes "For over 1,500 years the Chinese have been using sticky rice as an ingredient in mortar, which has resulted in super strong buildings, many of which are still standing after hundreds of years. Scientists have been studying the sticky rice and lime mortar to unlock the secrets of its strength, and have just determined the secret ingredient that makes the mortar more stable and stronger. The scientists have also concluded that this mixture is the most appropriate for restoration of ancient and historic buildings, which means it is probably also appropriate for new construction as well."

Comment: Duh... (Score 1) 211

by arnwald (#32181906) Attached to: Amazon Is Collecting Your Kindle Highlights & Notes

Oh come on..

The kindle app shows you popular passages that other people highlighted, it only takes half a brain to realize that for this feature they must be storing your and everybody else's highlights..
Seriously.. Just to mess them them up I am highlighting every mistake they make in the OCR process. I am sick to sec those scanning mistakes.

T.

The reason that every major university maintains a department of mathematics is that it's cheaper than institutionalizing all those people.

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