Lines Matching full:counters

30 counters. They minimize the performance cost of standard atomic operations by
34 Having fast per CPU atomic counters is interesting in many cases: it does not
36 coherent counters in NMI handlers. It is especially useful for tracing purposes
37 and for various performance monitoring counters.
95     static DEFINE_PER_CPU(local_t, counters) = LOCAL_INIT(0);
107     local_inc(&get_cpu_var(counters));
108     put_cpu_var(counters);
113     local_inc(this_cpu_ptr(&counters));
117 Reading the counters
120 Those local counters can be read from foreign CPUs to sum the count. Note that
126             sum += local_read(&per_cpu(counters, cpu));
149     static DEFINE_PER_CPU(local_t, counters) = LOCAL_INIT(0);
158             local_inc(this_cpu_ptr(&counters));
163              * local_inc(&get_cpu_var(counters));
164              * put_cpu_var(counters);
172             /* Increment the counters */
174             /* Read all the counters */
175             printk("Counters read from CPU %d\n", smp_processor_id());
178                             local_read(&per_cpu(counters, cpu)));