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10%
Profiling Python Code
09.12.2019
Home »  HPC  »  Articles  » 
in execution time by about a factor of 10 (i.e., it ran 10 times slower than without profiling). Listing 3: pprofile Output Command line: md_002.py Total duration: 1662.48s File: md_002.py File duration: 1661
10%
Creating and evaluating kernel crash dumps
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Giuseppe Ramos, 123RF.com
kernel sles:~ # grep crash /proc/cmdline root=/dev/disk/by-uuid/10a83ffe-5a9f-48a2-b8cb-551c2cc6b42d resume=/dev/sda3 splash=silent text showopts crashkernel=128 sles:~ # /etc/init.d/boot.kdump status
10%
Filesystem Murder Mystery
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image © Lucy Baldwin, 123RF.com
Unexplained rename() delay: https://twitter.com/jsaryer/status/1069831718389960704 GitHub, James Saryerwinnie: https://gist.github.com/jamesls/9d52c7b3a19491f4d14c2d487515115f rename(2) man page: https
10%
Measuring the performance of code
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Lucy Baldwin, 123RF.com
in the standard Python built-ins [2] and in the NumPy library [3]. Figure 1: IPython session comparing two implementations of a round routine. Unless you
10%
Warewulf Cluster Manager – Completing the Environment
20.06.2012
Home »  HPC  »  Articles  » 
is to find out whether it runs on the master node when it is booted by using the chkconfig command: [root@test1 etc]# chkconfig --list ... nfs 0:off 1:off 2:off 3:off 4:off 5:off 6
10%
Analyzing Kernel Crash Dumps
25.11.2012
Home »  Articles  » 
 
/cmdline root=/dev/disk/by-uuid/10a83ffe-5a9f-48a2-b8cb-551c2cc6b42d resume=/dev/sda3 \ splash=silent text showopts crashkernel=128 sles:~ # /etc/init.d/boot.kdump status kdump kernel loaded
10%
Hybrid public/private cloud
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Photo by JJ Ying on Unsplash
.0.0.0/0 45 - IpProtocol: udp 46 FromPort: 0 47 ToPort: 65535 48 CidrIp: 0.0.0.0/0 49 VpcId: 50 Ref: FortiVPC 51 52 InstanceProfile: 53 Properties: 54
10%
Two NexentaOS derivatives compared
16.05.2013
Home »  Archive  »  2013  »  Issue 14: Samba 4  » 
© iofoto, fotolia.com
licensed. NexentaStor [3] distinguishes between the Community Edition and the Enterprise Edition. The Community Edition is free, but not intended for production systems (which the EULA explicitly forbids
10%
John the Ripper
22.08.2011
Home »  Articles  » 
 
systems is John the Ripper (John). John is a free tool from Openwall. System administrators should use John to perform internal password audits. It’s a small (<1MB) and simple-to-use password
10%
Machine learning and security
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Vlad Kochelaevskiy, 123RF.com
interacts with the environment as an agent, much like a sentient being (Figure 3). The agent has to explore the environment and typically only learns after a certain number of actions whether

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