Scalable Counters

Scalable Statistics Counter

Statistics counters are used in many places in the linux kernel including storage and network I/O subsystems, scheduler etc. Since accuracy is not very important, these counters are non-atomic, but they result in cache line bouncing among CPUs. Scalable Statistics Counter is a feature that provides the support for a low cache-penalty counter that can be used for statistics gathering.

Last updated: 01/10/01 Any problems, additions, etc , please send email to the Webmeistern.

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