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use a fixed seed
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2 changed files with 6 additions and 12 deletions
15
src/lru.rs
15
src/lru.rs
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@ -1,6 +1,5 @@
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use parking_lot::Mutex;
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use rand::rngs::SmallRng;
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use rand::FromEntropy;
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use rand::Rng;
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use rand::SeedableRng;
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use std::fmt::Debug;
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@ -58,16 +57,17 @@ where
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}
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}
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// We always use a fixed seed for our randomness so that we have
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// predictable results.
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const LRU_SEED: &str = "Hello, Rustaceans";
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impl<Node> Lru<Node>
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where
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Node: LruNode,
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{
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/// Creates a new LRU list where LRU caching is disabled.
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pub fn new() -> Self {
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Lru {
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green_zone: AtomicUsize::new(0),
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data: Mutex::new(LruData::new()),
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}
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Self::with_seed(LRU_SEED)
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}
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#[cfg_attr(not(test), allow(dead_code))]
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@ -137,11 +137,6 @@ impl<Node> LruData<Node>
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where
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Node: LruNode,
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{
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fn new() -> Self {
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Self::with_rng(SmallRng::from_entropy())
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}
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#[cfg_attr(not(test), allow(dead_code))]
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fn with_seed(seed_str: &str) -> Self {
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Self::with_rng(rng_with_seed(seed_str))
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}
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@ -25,7 +25,6 @@ impl LruNode for TestNode {
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}
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}
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const LRU_SEED: &str = "Hello, Rustaceans";
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const PICK_SEED: &str = "Wippity WIP";
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/// Randomly requests nodes and compares the performance of a
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@ -48,7 +47,7 @@ fn compare(
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// it. When the capacity is exceed, we can pop the oldest.
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let mut oracle = LinkedHashMap::new();
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let lru = Lru::with_seed(LRU_SEED);
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let lru = Lru::with_seed(super::LRU_SEED);
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lru.set_lru_capacity(capacity);
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let nodes: Vec<_> = (0..num_nodes).map(|i| TestNode::new(i)).collect();
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