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== Units ==
<code>Oomguarpages</code> and <code>privvmpages</code>
values are measured in [[memory page]]s.
For other secondary parameters, the values are in bytes.
do not have strong negative effect on the applications, but just reduce
performance of network communications.
If you use rtorrent in a container, a low value for <code>tcpsndbuf</code> may cause rtorrent to take unusual amount of cpu. In this case, you must put a higher value. Also watch the number of failcnt in /proc/user_beancounters.
<code>Tcpsndbuf</code> limits can't be set arbitrarily high.
== privvmpages ==
Memory allocation limitin [[Memory_page|pages]] (which are typically 4096 bytes in size).
<code>Privvmpages</code> parameter
This gap will be used for “high-priority” memory allocations, such
as process stack expansion.
Normal priority allocations will fail when the <code>barrier</code> ifof
<code>privvmpages</code> is reached.
There's also an article describing how [[user pages accounting]] works.
== System-wide limits ==
