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16%
Monitor your network infrastructure with SNMP
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © lightwise, 123RF.com
a favor by restricting the output to less information. The devices connected to individual routers or access points are provided by the ipNetToMediaEntry (OID 1.3.6.1.2.1.4.22.1 ) branch, for example. You
16%
ARP cache poisoning and packet sniffing
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© elisanth, 123RF.com
Destination MAC address Listing 1 Nemesis arp Packets 01 $ while true 02 > do 03 > sudo nemesis arp -v -r -d eth0 -S 192.168.1.2 -D 192.168.1.133 -h 00:22:6E:71:04:BB -m 00:0C:29:B2 ... 6
16%
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
16%
Minifying container images with DockerSlim
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Maggie Molloy, 123RF.com
(minified by 25.99X) from python:2.7-alpine - 84.3MB => 23.1MB (minified by 3.65X) from python:2.7.15 - 916MB => 27.5MB (minified by 33.29X) from centos:7 - 647MB => 23MB (minified by 28.57X) from centos
16%
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
16%
Tuning ZFS for Speed on Linux
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © Wong Yu Liang, 123RF.com
16 3.38K sdf - - 0 0 16 3.37K logs - - - - - - nvme0n1p2 0 92G 0 0 586 56.6K cache
16%
Accessing Fortran code with Python
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Kheng Ho Toh, , 123RF.com
.multiply_(byref(a), byref(b)) print add.addtwo_(byref(a), byref(b)) The output from the Python code is: $ python3 testfunc.py 8 6 If you like, you can write a simple Python wrapper function for the shareable objects
16%
Real-World HPC: Setting Up an HPC Cluster
04.11.2011
Home »  HPC  »  Articles  » 
on enterprise-grade rack hardware, there is no reason one cannot follow along at home with a few beige boxes and an 10Mb hub, as long as the servers are capable of booting from the network with PXE [6]. PXE
16%
Asynchronous PostgreSQL
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Fesus Robert, 123RF.com
$st2->execute($dbh->{pg_pid}); 16 if( !$st2->fetchrow_arrayref->[0] ) { 17 warn "couldn't stop backend PID=$dbh->{pg_pid}\n"; 18 } 19 exit 1; 20 } 21 22 POSIX::sigaction(SIGTERM, POSIX
16%
Tuning ZFS for Speed on Linux
17.03.2020
Home »  HPC  »  Articles  » 
.39K     sde          -      -      0      0     16  3.38K     sdf          -      -      0      0     16  3.37K logs             -      -      -      -      -      -   nvme0n1p2      0    92G      0      0    586  56.6

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