Messages in this thread | | | Date | Thu, 25 Mar 2004 05:16:43 +0530 | From | Dipankar Sarma <> | Subject | Re: [PATCH] RCU for low latency (experimental) |
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On Thu, Mar 25, 2004 at 12:34:30AM +0100, Andrea Arcangeli wrote: > On Thu, Mar 25, 2004 at 04:41:45AM +0530, Dipankar Sarma wrote: > > That was not 16 callbacks per tick, it was 16 callbacks in one > > batch of a single softirq. And then I reschedule the RCU tasklet > > sorry so you're already using tasklets in current code? I misunderstood > the current code then.
+ if (count >= rcumaxbatch) { + RCU_plugticks(cpu) = rcuplugticks; + if (!RCU_plugticks(cpu)) + tasklet_hi_schedule(&RCU_tasklet(cpu)); + break; + }
That does it. Although, the tasklet handler needs to optimized to for such frequent rescheduling when there isn't anything else to process in that cpu. Later.
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