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17%
Why Good Applications Don't Scale
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © man64, 123RF.com
cannot be parallelized). For one process, the wall clock time is assumed to be 1,000 seconds, which means that 200 seconds of the wall clock time is the serial portion of the application. From Amdahl's Law
17%
Defining measures
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Photo by Lars Kienle on Unsplash
" payload has been created for measuring IOPS. This size is 4KB. The kilobyte [1] is defined as 1,000 bytes and is grounded in base 10 (10^3). Over time, kilobyte has been incorrectly used to mean numbers
17%
The latest developments in Open-Xchange 6.20
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Robert Byron, Fotolia.com
&1, for example, will be familiar with the software under the name of 1&1 Webmail and 1&1 MailXchange. On top of the 2.5 million 1&1 customers, another 1.4 million users with Host Europe, and 40,000 root and v ... The latest developments in Open-Xchange 6.20
17%
Service management by the book
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Michael Flippo, Fotolia.com
, RequestTracker (RT) [6] is definitely on the low end, although it does have a better "look and feel" than OTRS and some other tools (Figure 3). I would categorize it as low to mid-range, because it provides
17%
Building better software on schedule with DevOps
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
© J. Allspaw and P. Hammond 2009
] indicates that 31 percent of more than 9,000 respondents see their position as a DevOps Engineer. According to the survey, 16 percent work in a DevOps department. The report, with 46 percent of respondents
17%
Building more efficient database applications with a graph database
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Jakub Krechowicz, 123RF.com
comparison in Table 1. Table 1 Five Graph Databases Name Neo4j 1.6 Sones Graph DB 2.0 InfoGrid 2.9.5 HyperGraphDB 1.1 VertexDB Homepage http
17%
Detect failures and ensure high availability
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Tim Foster on Unsplash
a secondary (local) drive with the exact same capacity on each, /dev/sdb: $ cat /proc/partitions|grep sd 8 0 10485760 sda 8 1 1024 sda1 8 2 1835008 sda2 8 3
17%
Useful NFS Options for Tuning and Management
15.06.2016
Home »  HPC  »  Articles  » 
client and server TCP stacks. In this article, I've broken the list of tuning options into three groups: (1) NFS performance tuning options, (2) system tuning options, and (3) NFS management/policy options
17%
A simple approach to the OCFS2 cluster filesystem
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Kheng Ho Toh, 123RF.com
filesystem (AFS) is another network filesystem that is available in a free implementation, OpenAFS [3]. On the other hand are cluster filesystems. Before computers can access "distributed" data, they first ... The vanilla kernel includes two cluster filesystems: OCFS2 has been around since 2.6.16 and is thus senior to GFS2. Although OCFS2 is non-trivial under the hood, it is fairly simple to deploy.
17%
Seven free blocking filters for ads
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Lead Image © enciktep, 123RF.com
$ sudo systemctl restart dnsmasq 07 $ sudo pkill -USR1 dnsmasq Dnsmasq learns the content of the blacklist from an entry in its configuration (lines 3-5). The service then restarts (line 6

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