On Wed, 2013-05-01 at 12:52 +0800, Simon Jeons wrote: > Hi Tim, > On 04/30/2013 01:12 AM, Tim Chen wrote: > > Currently, there is a single, global, variable (percpu_counter_batch) that > > controls the batch sizes for every 'struct percpu_counter' on the system. > > > > However, there are some applications, e.g. memory accounting where it is > > more appropriate to scale the batch size according to the memory size. > > This patch adds the infrastructure to be able to change the batch sizes > > for each individual instance of 'struct percpu_counter'. > > > > I have chosen to implement the added field of batch as a pointer > > (by default point to percpu_counter_batch) instead > > of a static value. The reason is the percpu_counter initialization > > can be called when we only have boot cpu and not all cpus are online. > > What's the meaning of boot cpu? Do you mean cpu 0? >
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