Editing UBC secondary parameters
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do not have strong negative effect on the applications, but just reduce | do not have strong negative effect on the applications, but just reduce | ||
performance of network communications. | performance of network communications. | ||
− | |||
− | |||
<code>Tcpsndbuf</code> limits can't be set arbitrarily high. | <code>Tcpsndbuf</code> limits can't be set arbitrarily high. | ||
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== privvmpages == | == privvmpages == | ||
− | Memory allocation limit | + | Memory allocation limit. |
<code>Privvmpages</code> parameter | <code>Privvmpages</code> parameter | ||
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This gap will be used for “high-priority” memory allocations, such | This gap will be used for “high-priority” memory allocations, such | ||
as process stack expansion. | as process stack expansion. | ||
− | Normal priority allocations will fail when the <code>barrier</code> | + | Normal priority allocations will fail when the <code>barrier</code> if |
<code>privvmpages</code> is reached. | <code>privvmpages</code> is reached. | ||
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There's also an article describing how [[user pages accounting]] works. | There's also an article describing how [[user pages accounting]] works. | ||
+ | |||
+ | == Units == | ||
+ | <code>Oomguarpages</code> and <code>privvmpages</code> | ||
+ | values are measured in [[memory page]]s. | ||
+ | For other secondary parameters, the values are in bytes. | ||
== System-wide limits == | == System-wide limits == |