linsched: remove process_all_softirqs() in main loop for accuracy

RFC PATCH New Michael Wang 1 participant 1 message Sep 3, 2012

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Michael Wang

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2012-09-03 03:58 UTC #0 lore raw

RFC PATCH 1/4 linsched: remove process_all_softirqs() in main loop for accuracy

From: Michael Wang <[email protected]>

process_all_softirqs() will handle softirq for all the cpu even it's not the right timing for them, this will cause inaccuracy.

This patch stop invoke process_all_softirqs(), so softirq will only be handled after timer interrupt arrived.

Signed-off-by Michael Wang <[email protected]>

---
 tools/linsched/hrtimer.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

tools/linsched/hrtimer.c +0 -1

index 26be1d8..de88b25 100644
@@ -206,7 +206,6 @@ void linsched_run_sim(int sim_ticks)
                        /* a handler should never leave this state changed */
                        BUG_ON(smp_processor_id() != active_cpu);
 
-                       process_all_softirqs();
                        linsched_rcu_invoke();
 
                        BUG_ON(irqs_disabled());