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Tracing applications with OProfile and SystemTap

30.11.2025

Home » Archive » 2010 » Issue 1: System... »

. The target systems only require the systemtap-runtime RPM and the staprun program it contains. The following command creates a prebuilt binary kernel module for the target system: stap -r kernel-PAE-2.6.31.12-174.2.22

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The practical benefits of network namespaces

15.08.2016

Home » Archive » 2016 » Issue 34: Softw... »

it through a ping test. The routing table, as defined in line 12, is only present in the ns1 namespace. With /etc/netns/ns1, $ mkdir -pv /etc/netns/ns1 mkdir: created directory ?/etc/netns? mkdir: created

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HDF5 with Python and Fortran

21.03.2017

Home » HPC » Articles »

# =================== 09 # 10 if __name__ == '__main__': 11 12 f = h5py.File("mytestfile.hdf5", "w") 13 14 dset = f.create_dataset("mydataset", (100,), dtype='i') 15 16 dset[...] = np.arange(100) 17

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SmartOS: Cool Cloud Platform Rises from the Ashes of Solaris

10.06.2014

Home » Articles »

kernel 3.12, so that SmartOS at least installed without error messages, although it would hang if you tried to launch a KVM machine. Although you don’t have to worry about installation, you do need to set

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Get Started with Parallel CPython

07.11.2011

Home » HPC » Articles »

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

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Jenkins Configuration as Code

07.06.2019

Home » Archive » 2019 » Issue 51: Self-... »

_HOME=/ephemeral/jenkins 10 11 # for main web interface: 12 EXPOSE ${HTTP_PORT} 13 14 ENV JENKINS_HOME=${JENKINS_HOME} 15 ENV CASC_JENKINS_CONFIG=/jcasc_config 16 17 COPY jcasc_config/* ${CASC_JENKINS_CONFIG}/ 18 19 RUN mkdir

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Boost performance of your Python programs

30.11.2025

Home » Archive » 2010 » Issue 2: Backup... »

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

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Fast system management from Puppet Labs

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

="http://activemq.apache.org/schema/core" brokerName="localhost" useJmx="true"> 10 11 12 13 14 15

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Single sign-on like the big guys

20.06.2022

Home » Archive » 2022 » Issue 69: Terra... »

_ADMIN=admin 10 - KEYCLOAK_ADMIN_PASSWORD=SOME_PASSWORD 11 - KC_DB=postgres 12 - KC_DB_URL=jdbc:postgresql://postgres:5432/keycloak 13 - KC_DB_USERNAME=postgres 14 - KC

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Embarrassingly parallel computation

01.06.2024

Home » Archive » 2024 » Issue 81: Load... »

* argv[]) 08 { 09 long niter = 1000000000; 10 int myid; //holds process's rank id 11 double x,y; //x,y value for the random coordinate 12 int i; 13

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