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/kernel/
DKconfig.hz11 beneficial for servers and NUMA systems that do not need to have
12 a fast response for user interaction and that may experience bus
14 Note that the timer interrupt occurs on each processor in an SMP
23 with lots of processors that may show reduced performance if
DKconfig.preempt42 all kernel code (that is not executing in a critical section)
Dlockdep.c1557 struct lock_list this, that; in check_usage() local
1570 that.parent = NULL; in check_usage()
1571 that.class = hlock_class(next); in check_usage()
1572 ret = find_usage_forwards(&that, bit_forwards, &target_entry1); in check_usage()
1578 return print_bad_irq_dependency(curr, &this, &that, in check_usage()
/kernel/power/
DKconfig42 system and powers it off; and restores that checkpoint on reboot.
53 of the reasons to use software suspend is that the firmware hooks
62 Note, however, that fsck will be run on your filesystems and you will
71 that were mounted before the suspend. In particular, you MUST NOT
85 The default resume partition is the partition that the suspend-
89 It should be a valid swap partition (at least for now) that is turned
184 linked, ensuring that it's available when this test runs.
212 RTC across reboots, so that you can debug a machine that just hangs
240 manpage ("man 8 hdparm") for that), and it doesn't turn off
245 random kernel OOPSes or reboots that don't seem to be related to
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/kernel/trace/
DKconfig2 # Architectures that offer an FUNCTION_TRACER implementation should
97 # All tracer options should select GENERIC_TRACER. For those options that are
126 # tracers anyway, they were tested to build and work. Note that new
194 (Note that kernel size and overhead increase with this option
218 (Note that kernel size and overhead increase with this option
291 The likely/unlikely profiler only looks at the conditions that
340 Selected by tracers that will trace the likely and unlikely
352 "Trace likely/unlikely profiler" is that this is not a
369 This tracer works by hooking into every function call that the
454 compile time, a table is made of all the locations that ftrace
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/kernel/gcov/
DKconfig32 Note that the debugfs filesystem has to be mounted to access
45 Note that a kernel compiled with profiling flags will be significantly
/kernel/time/
DKconfig132 define the range of full dynticks CPUs, consider that all
141 This is the old config entry that enables dynticks idle.
/kernel/debug/kdb/
Dkdb_cmds3 # processes. Commands that require process data (including stack or
/kernel/irq/
DKconfig77 Sparse irq numbering is useful for distro kernels that want