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21%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Aleksey Mnogosmyslov, 123RF.com
on hand; it is available on the web [2]. You will also find it useful to have the current version 1.0.2 [3] of the OCF Resource Agent Developer's Guide , created by Hastexo's Florian Haas. The Developer
21%
Profiling Python Code
09.12.2019
Home »  HPC  »  Articles  » 
.00%|    154|  12724500|      46.7333|   3.6727e-06|  3.09%|                d = 0.0    155|  50898000|      195.426|  3.83956e-06| 12.94%|                for k in range(0, d_num):    156
21%
Get Started with Parallel CPython
07.11.2011
Home »  HPC  »  Articles  » 
 compute(istart, iend): 06     isum = 0 07     for i in xrange(istart, iend+1): 08         isum += i**3 + 123456789*i**10 + i*23456789 09  10     return isum 11  12 if '__main__' == __name__: 13  14
21%
Small-board computers
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © Author, 123RF.com
://developer.nvidia.com/jetson-tk1 Odroid-XU3 Android 4.4, Linux Samsung Exynos5422 Quad ARM Cortex-A15 @2.0GHz (32KB/32KB/2MB), Quad ARM Cortex-A7 @1.4GHz (32KB/32KB/512KB) Mali-T628 MP6
21%
Boost performance of your Python programs
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Eric Isselée, 123RF
if '__main__' == __name__: 09 10 p1 = Process(target = test, args = ('Rich',)) 11 p2 = Process(target = test, args = ('Nus',)) 12 p3 = Process(target = test, args = ('Geeks',)) 13 14 p2.start
21%
Filesystem Murder Mystery
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image © Lucy Baldwin, 123RF.com
in mv ubuntu@aws:~/slow-mv$ strace -t mv 3GB.copy 3GB 19:00:09 execve("/bin/mv", ["mv", "3GB.copy", "3GB"], 0x7ffd0e7dddf8 /* 21 vars */) = 0 19:00:09 brk(NULL) = 0x55cd7d1ce000
21%
Build a honeypot with real-world alerts
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © Bruce Rolff, 123RF.com
:FORWARD ACCEPT [0:0] 05 :OUTPUT ACCEPT [125:13440] 06 -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT 07 -A INPUT -p icmp -j ACCEPT 08 -A INPUT -i lo -j ACCEPT 09 -A INPUT -p tcp -m state --state
21%
Building Big Iron in the Cloud with Google Compute Engine
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Zavalnyuk Sergey, 123RF.com
/joe/.ssh/google_compute_engine -A -p 22 joe@1.2.3.4 -- 11 Warning: Permanently added '1.2.3.4' (ECDSA) to the list of known hosts. 12 Enter passphrase for key '/home/joe/.ssh/google_compute_engine': 13 Linux gcerocks-instance-1 3.2.0
21%
Nagios alerts implemented via VoIP
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Zentilia, 123RF.com
well. Of the available clients, PJSUA [3] turns out to be the best choice. PJSUA is the PJSIP reference implementation, and it comprises a function library for SIP, RTP, STUN, and some other Vo
21%
Cgroups for resource management in Linux
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Photographer, 123RF.com
cgroup, which has no restrictions. You can test this by sending a SIGUSR1 to the process: # kill -USR1 $pid 578804+0 records in 578804+0 records out 296347648 bytes (296 MB) copied, 7.00803 s, 42.3 MB

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