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30%
Analyzing tricky database problems
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Photo by Quino Al on Unsplash
that can be reset. However, with MariaDB 10.0.12, the performance tables are deactivated by default. To activate them, the database admin adds the line performance_schema=on to the my.cnf file. Detailed
30%
Roll out hybrid clouds with Ansible  automation
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Lead Image © markovka, 123RF.com
key_material: "{{ item }}" 09 state: present 10 region: "{{ region }}" 11 with_file: /home/user/.ssh/id_rsa.pub 12 register: sshkey 13 tags: sshkey 14 15 - name: Create VPC INT 16 ec2
30%
CPU affinity in OpenMP and MPI applications
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Lead Image © podfoto, 123RF.com
allocation to node 1, use: ----------------text09 $ numactl --physcpubind=+0-4,8-12 --preferred=1 application.exe This policy can be useful if you want to keep application.exe running, even if no more
30%
Programming with OpenMP
07.11.2011
Home »  HPC  »  Articles  » 
directives, meaning that the source code can still be complied as serial code: $ gcc ‑Wall test.c test.c: In function 'main': test.c:12: warning: ignoring #pragma omp parallel OpenMP-specific code can also
30%
Setting up SELinux policies
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Agustin Paz, 123RF.com
see that the base module is by far the largest, weighing in at more than 200KB. When a module is loaded, it is copied to /etc/selinux/targeted/modules/active/modules/. When the system is rebooted
30%
Finally: Java 9
13.02.2017
Home »  Archive  »  2017  »  Issue 37: Distr...  » 
Lead Image © Krockenmitte, photocase.com
to the needs of an application. After all, the standard libraries in Java 8 weigh in at around 60MB and 20,000 classes. They not only need space on the hard drive, but the computer also needs to load them
30%
Creating SmartOS zones using UCARP
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Le Moal Olivier, 123RF.com
_domain": "yourdomain.com", 06 "dataset_uuid": "d34c301e-10c3-11e4-9b79-5f67ca448df0", 07 "resolvers": [ 08 "192.128.0.9", 09 "192.128.0.10" 10 ], 11 "max_physical_memory": 4096, 12 "nics": [ 13
30%
Serverless computing with AWS Lambda
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © joingate, 123RF.com
": "Allow", 06 "Action": "logs:CreateLogGroup", 07 "Resource": "arn:aws:logs:eu-west-1:XXXXXXX:*" 08 }, 09 { 10 "Effect": "Allow", 11 "Action": [ 12 "logs
30%
Managing Linux Memory
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © J.R. Bale, 123RF.com
application server. On a system in a stable state, throughput initially is not affected by file operations, but after a certain value (e.g., 16,384MB), performance collapses. As Figure 1 shows
30%
Protecting your web application infrastructure with the Nginx Naxsi firewall
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Pansiri Pikunkaew, 123RF
backend3.example.com server; 05 backend4.example.com server down; 06 backend5.example.com backup server; 07 } 08 09 upstream fallback { 10 fallback1.example.com server: 8081; 11 } 12 13 14 server { 15 % 16

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