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dan-and / deployment-tool-ansible-puppet-chef-salt.md
Created August 16, 2017 08:13 — forked from jaceklaskowski/deployment-tool-ansible-puppet-chef-salt.md
Choosing a deployment tool - ansible vs puppet vs chef vs salt

Requirements

  • no upfront installation/agents on remote/slave machines - ssh should be enough
  • application components should use third-party software, e.g. HDFS, Spark's cluster, deployed separately
  • configuration templating
  • environment requires/asserts, i.e. we need a JVM in a given version before doing deployment
  • deployment process run from Jenkins

Solution

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dan-and / gcc compiler optimization for arm systems.md
Created June 25, 2017 10:23 — forked from fm4dd/gcc compiler optimization for arm systems.md
GCC compiler optimization for ARM-based systems

GCC compiler optimization for ARM-based systems

2017-03-03 fm4dd

The gcc compiler can optimize code by taking advantage of CPU specific features. Especially for ARM CPU's, this can have impact on application performance. ARM CPU's, even under the same architecture, could be implemented with different versions of floating point units (FPU). Utilizing full FPU potential improves performance of heavier operating systems such as full Linux distributions.

-mcpu, -march: Defining the CPU type and architecture

These flags can both be used to set the CPU type. Setting one or the other is sufficient.