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15%
Modern Fortran for today and tomorrow
17.06.2017
Home »  Archive  »  2017  »  Issue 39: Conta...  » 
Lead Image © homestudio, 123RF.com
integer :: allocate_status 08 ! 09 n = 10 10 allocate( array(n, n), stat = allocate_status ) 11 if (allocate_status /= 0) stop "Could not allocate array" 12 ! 13 subarray => array(3:7,3:7) 14
15%
Improving performance with environment variables
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © sgame, fotolia.com
.196418 1.575951 87.21019 3.468651 39.623174 8,192 39.343849 27.946214 102.974144 10.677551 12.247917 89.771315 26.561623 41
15%
Tracing applications with OProfile and SystemTap
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© boing, Photocase.com
("------------------------------------------- ----------------------\n") 09 } 10 11 probe tcp.receive { 12 printf(" %15s %15s %5d %5d %d %d %d %d %d 13 %d\n", saddr, daddr, sport, dport, urg, 14 ack, psh, rst, syn, fin) 15
15%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alterfalter, 123RF.com
, or disk space usage, you need to install a verbose add-on, such as NRPE [3], on each machine. The remote Icinga server will tell it to execute the plugins on the local machine and transmit the required
15%
An army of Xeon cores to do your bidding
30.01.2024
Home »  Archive  »  2024  »  Issue 79: Monit...  » 
Lead Image © Lucy Baldwin, 123RF.com
Dell Precision Workstation T7910 Power 1,300W CPU 2x Intel Xeon Gold E5-2699 V4, 22 cores, 2.4GHz, 55MB of cache, LGA 2011-3 GPU, NPU n/a* Memory
15%
Rethinking RAID (on Linux)
16.03.2021
Home »  HPC  »  Articles  » 
=libaio, iodepth=32 fio-3.12 Starting 1 process Jobs: 1 (f=1): [w(1)][100.0%][w=1420KiB/s][w=355 IOPS][eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=3377: Sat Jan  9 15:31:04 2021   write: IOPS=352, BW=1410Ki
15%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© kudryashka, 123RF.com
--------- ------ ---- ----- ---- 12 Throughput Cashier Customers 0.7500 Cust/Sec 13 Utilization Cashier Customers 75.0000 Percent 14 Queue Length Cashier Customers 3.0000 Cust 15 Residence Time Cashier Customers 4.0000 Sec 16 N Sws
15%
TCP Stealth hides open ports
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © momo5287, 123RF.com
the patch for kernel versions 3.18 and 3.19.x [17]. If you are uncertain as to how to proceed, you can either look for help on the Internet or check out Julian Kirsch's [12] master's thesis. You will find
15%
Workshop: Container virtualization with LXC on Ubuntu 10.04
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Tormod Rossavik, 123RF.com
and modifying the IP address in line 8. The line lxc-create -n guest -f /lxc/conf.guest Listing 3 Container Configuration: conf.guest 01 lxc.utsname = guest 02 lxc.tty = 4 03 lxc
15%
Asynchronous PostgreSQL
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Fesus Robert, 123RF.com
=$dbh->prepare('select burncpu(?)'); 12 $sth->execute((($ENV{QUERY_STRING}+0) || .5).'s'); 13 14 while( my $row=$sth->fetchrow_arrayref ) { 15 print "@$row\n"; 16 } Workaround The script is simple, but the attentive

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