This blog forms part of the http://performanceGuru.com website which focuses on performance tuning UNIX-like Operating Systems (including Linux).
Wednesday, March 08, 2006
links for 2006-03-07
An approximate quantile summary of a sequence of N elements is a data structure that can answer quantile queries about the sequence to within a precision of εN . We present a new online...
We present new algorithms for computing approximate quantiles of large datasets in a single pass. The approximation guarantees are explicit, and apply without regard to the value distribution or the arrival distributions of the dataset. The main memory re
An organization consists of two worlds. The real world contains the organization’s structure, physical goods, employees, and other organizations. The virtual world contains the organization’s computerized infrastructure, including its applications and
In this tutorial I will describe how to set up a highly available NFS server that can be used as storage solution for other high-availability services like, for example, a cluster of web servers that are being loadbalanced. If you have a web server cluste
DRBD is a block device which is designed to build high availability clusters. This is done by mirroring a whole block device via (a dedicated) network. You could see it as a network raid-1.