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16%
Distributed storage with Sheepdog
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © kateleigh, 123RF.com
/lib/sheepdog root 582 581 0 13:13 ? 12:00:00 AM sheep -p 7000 /var/lib/sheepdog # grep sheep /proc/mounts /dev/sdb1 /var/lib/sheepdog ext4 rw,relatime,data=ordered 0 0 # grep sheep /etc/fstab /dev
15%
Fast system management from Puppet Labs
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Artmann Witte, fotolia.com
45 46 47 48 49 50 51 52
15%
Go testing frameworks
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Lead Image © Lucy Baldwin, 123RF.com
= [size][size]int {{0},{0},} 08 09 for i := 0; i < size; i++ { 10 for j := 0; j < size; j++ { 11 array[i][j]++ 12 } 13 } 14 15
15%
Comparing startup times of Linux distros in the cloud
27.09.2021
Home »  Archive  »  2021  »  Issue 65: 7 Em...  » 
Lead Image © Lucy Baldwin, 123RF.com
Request timeout for icmp_seq 0 Request timeout for icmp_seq 1 Request timeout for icmp_seq 2 64 bytes from 52.90.56.122: icmp_seq=3 ttl=48 time=40.492 ms [ output truncated ] Welcome to Ubuntu 20.04.1 LTS
15%
Measuring the performance of code
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Lucy Baldwin, 123RF.com
struct timespec t[loops+1] = { 0 }; 49 timespec_get(&t[0], TIME_UTC); 50 /* Volatile for i ensures that the loop is effected */ 51 for (uint64_t volatile i = 0; i < iterations; ++i) { 52 r
15%
Warewulf Cluster Manager – Completing the Environment
20.06.2012
Home »  HPC  »  Articles  » 
was there. To test whether this worked, ssh to the node n0001 as root. [root@test1 ~]# ssh n0001 Last login: Sat May 26 12:00:06 2012 from 10.1.0.250 The /etc/hosts on the master node works fine
15%
Checking password complexity with John the Ripper
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
from compromised systems is John the Ripper (John). John is a free tool from Openwall [1]. System administrators should use John to perform internal password audits. It's a small (<1MB) and simple
15%
Resource Management with Slurm
05.11.2018
Home »  HPC  »  Articles  » 
it the number of cores, number of cores per socket, threads per core, and the amount of memory available (e.g., 30,000MB, or 30GB, here). CgroupAutomount=yes CgroupReleaseAgentDir="/etc/slurm/cgroup"   Constrain
15%
Resource Management with Slurm
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Vladislav Kochelaevs, fotolia.com
socket, threads per core, and the amount of memory available (e.g., 30,000MB, or 30GB, here). CgroupAutomount=yes CgroupReleaseAgentDir="/etc/slurm/cgroup" ConstrainCores=yes Constrain
15%
Tuning I/O Patterns in Python
18.12.2013
Home »  HPC  »  Articles  » 
. This number of iterations used 27 write() functions, with a total of 109,524 bytes of data written. Contrast this with the C code, which wrote 32,000 bytes, and Fortran 90 code, which wrote 52,124 bytes

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