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17%
What's new in Ansible 2.0
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Viktor Gladkov, 123RF.com
, and although it has generated no major headlines, it has seen some new releases. A blog on the Ansible site [3] described the new features of the current version, one of which is related to execution speed
17%
Admin as a service with sysstat for ex-post monitoring
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Levente Janos, 123RF.com
. Listing 1 Analysis with sar 01 $ sar -f /var/log/sysstat/sa08A [...] 02 $ sar -f /var/log/sysstat/sa08 -s 23:30:00 -e 23:55:00 [...] 03 $ sar -f /var/log/sysstat/sa07 -s 23:30:00 -e 23:55:00 -P
17%
Planning Performance Without Running Binaries
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Lucy Baldwin, 123RF.com
/master/Chapter02/03_MPI_08_b.c Morrison, Carlos. Build Supercomputers with Raspberry Pi 3 . Pakt Publishing, 2016 Amdahl's law: https://webhome.phy.duke.edu/~rgb/Beowulf/beowulf_book/beowulf_book/node21.html
17%
Getting the most from your cores
11.10.2016
Home »  Archive  »  2016  »  Issue 35: Persi...  » 
Lead Image © ktsdesign, 123RF.com
, the exact details of these components varies from processor to processor, making CPU utilization comparison difficult. Current processors can have shared L3 caches across all cores or shared L2 and L1 caches
17%
What Is an Inode?
23.03.2022
Home »  HPC  »  Articles  » 
of the inodes when the filesystem is created, resulting in a fixed number of inodes. For example, ext3 and ext4 filesystems do this. The result is that the filesystem has a fixed number of inodes, which
17%
Debugging the Linux kernel with the Qemu emulator
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Daniela Mangiuca, 123RF.com
filesystem using, for example: Listing 1 Makefile 01 ifneq ($(KERNELRELEASE),) 02 obj-m := hello.o 03 04 else 05 PWD := $(shell pwd) 06 KDIR := ~/buildroot-2011.08/output/build/linux-3.1/ 07
17%
Strategies for routing voice calls around a firewall
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
gnohz, 123RF.com
headers; the second – separated by an empty line – contains the Session Description Protocol (SDP) [3] as the SIP payload. The SDP part describes the audio stream; that is, it contains data
17%
Asynchronous PostgreSQL
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Fesus Robert, 123RF.com
CREATE OR REPLACE FUNCTION burncpu (tm INTERVAL) 02 RETURNS INTERVAL AS $CODE$ 03 DECLARE 04 stmp TIMESTAMP := now()+tm; 05 i INT; 06 BEGIN 07 WHILE clock_timestamp()08 i:=1; 09
17%
Ceph and OpenStack Join Forces
04.06.2014
Home »  HPC  »  Articles  » 
-oriented configuration of Libvirt, you first need a UUID, which you can generate at the command line using uuidgen . (In my example, this is 2a5b08e4-3dca-4ff9-9a1d-40389758d081 .) You then modify the Cinder configuration
17%
A self-healing VM system
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © THISSATAN KOTIRAT , 123RF.com
better system protection, you can set the node monitor to "respawn" if it ever shuts down for any reason (notification email is recommended). The OS for the test environment is Red Hat Enterprise Linux 7.3

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