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→See also: added I/O limits
This page describes how accounting is done for I/O activity of VE CT processes, on a VFS I/O level. This The feature is available beginning with OpenVZ kernels version <code>028test008</code>.
If you are interested in [[I/O priorities for containers]], it is described in a separate article.
If you are looking for IO scheduler (i.e. lower level) statistics, see [[IO statistics]] instead.
== New resources ==
; read bytes
: is the number of bytes read by tasks. Reads are always synchronous in the kernel so this type of resource is the easiest one.
; dirty bytes
== Proc interface ==
=== General information ===
As was described in [[BC proc entries|another article]] each beancounter has its own <code>/proc/bc/$BCID</code> directory where subsystems add their entries. I/O accounting adds an <code>ioacct</code> entry to show I/O information. This entry contains the following information:
== See also ==
* [[IO statistics]]* [[I/O priorities for containers]]* [[I/O limits]]
[[Category:Resource management]]