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bitv: make sure benchmarks run long enough

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Previously they were too short (less than 10 ns), so the benchmarker
could not resolve them meaningfully. Now they should run in the order of
100 ns.
This commit is contained in:
Vinzent Steinberg
2014-08-21 10:02:55 -04:00
parent 4d41a4227c
commit da5e8cef59
1 changed files with 19 additions and 7 deletions
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src/libcollections/bitv.rs
+19 -7
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@@ -2566,7 +2566,9 @@ fn bench_uint_small(b: &mut Bencher) {
let mut r = rng();
let mut bitv = 0 as uint;
b.iter(|| {
bitv |= 1 << ((r.next_u32() as uint) % uint::BITS);
for _ in range(0u, 100) {
bitv |= 1 << ((r.next_u32() as uint) % uint::BITS);
}
&bitv
})
}
@@ -2576,7 +2578,9 @@ fn bench_bitv_big(b: &mut Bencher) {
let mut r = rng();
let mut bitv = Bitv::with_capacity(BENCH_BITS, false);
b.iter(|| {
bitv.set((r.next_u32() as uint) % BENCH_BITS, true);
for _ in range(0u, 100) {
bitv.set((r.next_u32() as uint) % BENCH_BITS, true);
}
&bitv
})
}
@@ -2586,7 +2590,9 @@ fn bench_bitv_small(b: &mut Bencher) {
let mut r = rng();
let mut bitv = Bitv::with_capacity(uint::BITS, false);
b.iter(|| {
bitv.set((r.next_u32() as uint) % uint::BITS, true);
for _ in range(0u, 100) {
bitv.set((r.next_u32() as uint) % uint::BITS, true);
}
&bitv
})
}
@@ -2596,7 +2602,9 @@ fn bench_bitv_set_small(b: &mut Bencher) {
let mut r = rng();
let mut bitv = BitvSet::new();
b.iter(|| {
bitv.insert((r.next_u32() as uint) % uint::BITS);
for _ in range(0u, 100) {
bitv.insert((r.next_u32() as uint) % uint::BITS);
}
&bitv
})
}
@@ -2606,7 +2614,9 @@ fn bench_bitv_set_big(b: &mut Bencher) {
let mut r = rng();
let mut bitv = BitvSet::new();
b.iter(|| {
bitv.insert((r.next_u32() as uint) % BENCH_BITS);
for _ in range(0u, 100) {
bitv.insert((r.next_u32() as uint) % BENCH_BITS);
}
&bitv
})
}
@@ -2625,8 +2635,10 @@ fn bench_bitv_small_iter(b: &mut Bencher) {
let bitv = Bitv::with_capacity(uint::BITS, false);
b.iter(|| {
let mut sum = 0;
for pres in bitv.iter() {
sum += pres as uint;
for _ in range(0u, 10) {
for pres in bitv.iter() {
sum += pres as uint;
}
}
sum
})