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9%
The fine art of allocating memory
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
); i+= 4096) newblock[i] = 'Y'; 12 printf("Allocated %d MB\n", allocation); 13 } 14 } Things are more interesting when memory is being used. Uncommenting line 11 does just that. The OOM
9%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
creates a 256MB file in the current directory along with process for the job. This process reads complete file content in random order. Fio records the areas that have already been read and reads each area
9%
Develop your own scripts for Nmap
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Raman Maisei, 123RF.com
something like Listing 2. Listing 2 Sample Output Starting Nmap 6.47 (http://nmap.org) at 2015-03-12:00:00 CET Nmap scan report for targethost (192.168.1.100) Host is up (0.023s latency). r
9%
Processor and Memory Affinity Tools
14.09.2021
Home »  HPC  »  Articles  » 
 $(find /sys/devices/system/cpu -regex ".*cpu[0-9]+/topology/thread_siblings_list") | sort -n | uniq 0,32 1,33 2,34 3,35 4,36 5,37 6,38 7,39 8,40 9,41 10,42 11,43 12,44 13,45 14,46 15,47 16,48 17,49 18,50 19,51 20,52 21,53 22,54 23,55 24,56 25
9%
CPU affinity in OpenMP and MPI applications
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Lead Image © podfoto, 123RF.com
,32 1,33 2,34 3,35 4,36 5,37 6,38 7,39 8,40 9,41 10,42 11,43 12,44 13,45 14,46 15,47 16,48 17,49 18,50 19,51 20,52 21,53 22,54 23,55 24,56 25,57 26,58 27,59 28,60 29,61 30,62 31,63 The lstopo tool
9%
HTML to database with a Perl script
30.11.2020
Home »  Archive  »  2020  »  Issue 60: Secur...  » 
Lead Image © Danila Krylov, 123RF.com
At work, I was tasked to come up with a solution to a problem presented by a web developer who needed some 1,200 static HTML files stripped of the HTML markup, leaving behind only text. Because 1,200
9%
Gatling load-testing tool
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Photo by NoWah Bartscher on Unsplash
class BlazeDemoV1 extends Simulation { 08 09 var qualifiedhost = "http://blazedemo.com" 10 var proxyport = 0 11 var proxyhost = "not set" 12 13 // headers for HTTP call 14 val headers = Map( 15
9%
RAM Revealed
26.04.2012
Home »  Articles  » 
 
: In LR-DIMMs, all of the signal lines (including the data) run through an intermediate chip; this reduces the electrical load on the memory controller. LR-DIMMs have an Isolation Memory Buffer (iMB
9%
The Aurora Mesos Framework
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © Anton Gvozdikov, 123RF.com
resources = Resources(cpu = 0.1, ram = 20*MB, disk = 20*MB), 09 processes = [hello_world_process]) 10 11 hello_world_job = Job( 12 cluster = 'test', 13 role = os.getenv('USER'), 14 task = hello
9%
New features in PHP 7.3
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © MIR, Fotolia.com
, many developers convert their content to uppercase or lowercase, for which the extension for multibyte strings has several functions. For example, mb_strtoupper("Street"); returns the text STREET

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