Lines Matching full:sections

1 Demonstrations of criticalstat: Find long atomic critical sections in the kernel.
3 criticalstat traces and reports occurences of atomic critical sections in the
5 sections frequently occur due to use of spinlocks, or if interrupts or
8 sections are a source of long latency/responsive issues for real-time systems.
23 Trace long critical sections
27   -p, --preemptoff      Find long sections where preemption was off
28   -i, --irqoff          Find long sections where IRQ was off
34     ./criticalstat -p       	# find sections with preemption disabled for more than 100 uS
35     ./criticalstat -d 500   	# find sections with IRQs disabled for more than 500 uS
36     ./criticalstat -p -d 500	# find sections with preemption disabled for more than 500 uS
41 By default, criticalstat finds IRQ disable sections for > 100us.
60 If too many sections are showing up, the user can raise the threshold to only
61 show critical sections that are > 500us by passing "-d" option:
86 If instead of irq disabled sections, we want to see preempt disabled sections,
88 sections that are > 500us.
110 show up as long preempt-off sections if the functions in the scheduler take a