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17%
Favorite benchmarking tools
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © Lucy Baldwin, 123RF.com
sports a few additional capabilities, the most noteworthy being its ability to measure page faults and swapping activity by the tested binary: $ /usr/bin/time gcc test.c -o test 0.03user 0.01system 0:00
17%
A Btrfs field test and workshop
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Adrian Hillman, 123RF.com
. Enterprise-Level Features Btrfs is a copy-on-write (COW) filesystem. Whereas a filesystem like ext3 logs block changes in a journal, Btrfs always writes changes to a block at a new location on the disk
17%
Using loop directives to improve performance
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © orson, 123RF.com
of an application allows it to run faster and scale better than serial applications (see Amdahl's law [3]). Today's processors have multiple cores, and accelerators such as GPUs have thousands of lightweight cores
17%
Check your VoIP networks with SIPVicious and sngrep
30.11.2025
Home »  Archive  »  2025  »  Issue 90 VoIP N...  » 
Photo by Quino Al on Unsplash
(6192 bits), 774 bytes captured (6192 bits) Ethernet II, Src: 00:1a:2b:3c:4d:5e, Dst: 00:6f:7g:8h:9i:0j Internet Protocol Version 4, Src: 192.168.1.101, Dst: 192.168.1.104 User Datagram Protocol, Src Port
17%
Julia Distributed Arrays
15.08.2012
Home »  HPC  »  Articles  » 
> print(owner(j,1)); 1 julia> print(owner(j,2)); 1 julia> print(owner(j,5)); 3 julia> print(owner(j,7)); 4 Similarly, a processor can ask: “What is the range of my indexes?” julia> print(myindexes(j)); (1
17%
IoT for IT
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © Bruce Rolff, 123RF.com
been reached. The picture is similar with other Internet services: Almost everyone uses services such as email [3]. Both the service provider industry and hardware manufacturers need new markets: one
17%
HPC Monitoring: What Should You Monitor?
15.01.2014
Home »  HPC  »  Articles  » 
days, then you might be able to capture data about whether a node is alive or dead infrequently, perhaps every 5-15 minutes, or even longer if you like. Checking it once every 3 seconds seems a bit like
17%
Ansible collections simplify AIX automation
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Lead Image © alexutemov, 123RF.com
quark | CHANGED | rc=0 >> /dev/testlv 64.00 62.67 3% 4 1% /testfs Now, to create a playbook to remove the filesystem you just created, go to the /etc
17%
OpenACC – Parallelizing Loops
09.01.2019
Home »  HPC  »  Articles  » 
as shown in Table 3, each gang will execute each loop redundantly (i.e., each gang will run the exact same code). These gangs are executed at the same time but independently of one another (Figure 2). Table
17%
Delegate and restrict authorizations in Azure AD
05.02.2023
Home »  Archive  »  2023  »  Issue 73: Datab...  » 
Lead Image © lassedesignen, 123RF.com
a user or group in Azure AD, use the cmdlet with the ObjectID parameter Get-AzureADUser -ObjectID 3b47a729-16c1-4be1-9ee2-7f3bd00a346b You can retrieve the ObjectID for each user after entering Get

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