Editing UBC parameters
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All the existing parameters are listed in the [[UBC parameters table]]. | All the existing parameters are listed in the [[UBC parameters table]]. | ||
− | By importance, the parameters are divided into 3 groups: | + | By importance, the parameters are divided into 3 groups: primary parameters, |
− | + | secondary parameters and auxiliary parameters. | |
More detailed description of the parameters and the resource control | More detailed description of the parameters and the resource control | ||
− | mechanisms governed by the parameters is provided | + | mechanisms governed by the parameters is provided below. |
== General information about all parameters == | == General information about all parameters == | ||
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<li>The parameters control | <li>The parameters control | ||
− | how the resources are distributed between | + | how the resources are distributed between Virtual Environments in terms of |
− | * limits, i.e. upper boundaries on what this | + | * limits, i.e. upper boundaries on what this Virtual Environment can consume, and |
− | * guarantees, i.e. mechanisms ensuring that this | + | * guarantees, i.e. mechanisms ensuring that this Virtual Environment can get the assigned “resources” regardless of the activity and the amount of resources required by other Virtual Environments. |
The parameters containing “<code>guar</code>” in their names, | The parameters containing “<code>guar</code>” in their names, | ||
− | i.e. <code>vmguarpages</code> and <code>oomguarpages</code> are | + | i.e. <code>vmguarpages</code> and <code>oomguarpages</code> are Virtual Environment's |
guarantees. | guarantees. | ||
They guarantee availability of resources and certain service level | They guarantee availability of resources and certain service level | ||
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The <code>limit</code> of <code>vmguarpages</code> and <code>oomguarpages</code> should be | The <code>limit</code> of <code>vmguarpages</code> and <code>oomguarpages</code> should be | ||
− | set to the maximal value [[ | + | set to the maximal value (i.e. [[MAX_ULONG]]). |
</li> | </li> | ||
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The properties of parameters are summarized in [[UBC parameter properties]]. | The properties of parameters are summarized in [[UBC parameter properties]]. | ||
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