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Partially implement get_difficulty_map bench

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This commit is contained in:
Bojan Serafimov
2023-01-05 03:23:10 -05:00
parent fb6569c880
commit 3d6bc126ed
1 changed files with 17 additions and 2 deletions
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19
pageserver/benches/bench_layer_map.rs
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@@ -1,3 +1,4 @@
use pageserver::keyspace::KeyPartitioning;
use pageserver::repository::Key;
use pageserver::tenant::layer_map::LayerMap;
use pageserver::tenant::storage_layer::Layer;
@@ -81,6 +82,12 @@ fn uniform_query_pattern(layer_map: &LayerMap<LayerDescriptor>) -> Vec<(Key, Lsn
.collect()
}
// Construct a partitioning for testing get_difficulty map when we
// don't have an exact result of `collect_keyspace` to work with.
fn uniform_key_partitioning(layer_map: &LayerMap<LayerDescriptor>, lsn: Lsn) -> KeyPartitioning {
todo!()
}
// Benchmark using metadata extracted from our performance test environment, from
// a project where we have run pgbench many timmes. The pgbench database was initialized
// between each test run.
@@ -124,6 +131,10 @@ fn bench_from_real_project(c: &mut Criterion) {
// Choose uniformly distributed queries
let queries: Vec<(Key, Lsn)> = uniform_query_pattern(&layer_map);
// Choose inputs for get_difficulty_map
let difficulty_map_lsn = todo!();
let partitioning = uniform_key_partitioning(&layer_map, difficulty_map_lsn);
// Define and name the benchmark function
let mut group = c.benchmark_group("real_map");
group.bench_function("uniform_queries", |b| {
@@ -135,7 +146,7 @@ fn bench_from_real_project(c: &mut Criterion) {
});
group.bench_function("get_difficulty_map", |b| {
b.iter(|| {
// TODO call get_difficulty_map
layer_map.get_difficulty_map(difficulty_map_lsn, &partitioning);
});
});
group.finish();
@@ -172,6 +183,10 @@ fn bench_sequential(c: &mut Criterion) {
.copied()
.collect();
// Choose inputs for get_difficulty_map
let difficulty_map_lsn = todo!();
let partitioning = uniform_key_partitioning(&layer_map, difficulty_map_lsn);
// Define and name the benchmark function
let mut group = c.benchmark_group("sequential");
group.bench_function("uniform_queries", |b| {
@@ -183,7 +198,7 @@ fn bench_sequential(c: &mut Criterion) {
});
group.bench_function("get_difficulty_map", |b| {
b.iter(|| {
// TODO call get_difficulty_map
layer_map.get_difficulty_map(difficulty_map_lsn, &partitioning);
});
});
group.finish();