Add fixed tick rate adjustment (#14447)
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@ -21,6 +21,8 @@ pub const NUM_HASHES_PER_BATCH: u64 = 1;
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pub const DEFAULT_PINNED_CPU_CORE: usize = 0;
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const TARGET_SLOT_ADJUSTMENT_NS: u64 = 50_000_000;
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impl PohService {
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pub fn new(
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poh_recorder: Arc<Mutex<PohRecorder>>,
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@ -52,10 +54,17 @@ impl PohService {
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if let Some(cores) = core_affinity::get_core_ids() {
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core_affinity::set_for_current(cores[pinned_cpu_core]);
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}
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// Account for some extra time outside of PoH generation to account
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// for processing time outside PoH.
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let adjustment_per_tick = if ticks_per_slot > 0 {
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TARGET_SLOT_ADJUSTMENT_NS / ticks_per_slot
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} else {
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0
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};
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Self::tick_producer(
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poh_recorder,
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&poh_exit_,
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poh_config.target_tick_duration.as_nanos() as u64,
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poh_config.target_tick_duration.as_nanos() as u64 - adjustment_per_tick,
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ticks_per_slot,
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);
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}
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