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Some tick frequencies lend themselves to optimized conversions from ms to ticks and vice-versa. - 1000Hz which does not need any conversion - 500Hz, 250Hz, 125Hz where the division/multiplication are a straight shift since they are power-of-two factors of 1000. In addition, some more generally used values are made to use optimized conversion equations rather than the generic one that uses 64-bit math, and often results in calling compiler intrinsics. These values are: 100Hz, 50Hz, 25Hz, 20Hz, 10Hz, 1Hz (the last one used in some testing). Avoiding the 64-bit math intrisics has the additional benefit, in addition to increased performance, of using a significant lower amount of stack space: 52 bytes on ARM Cortex-M and 80 bytes on x86. Change-Id: I080eb338a2637d6b1c6838c119af1a9fa37fe869 Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com> |
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gen_offset.h | ||
kernel_offsets.h | ||
kernel_structs.h | ||
ksched.h | ||
nano_internal.h | ||
offsets_short.h | ||
timeout_q.h | ||
wait_q.h |