Files
tantivy/src/cli/commands/bench.rs
Paul Masurel 8f812c7cd4 blop
2016-08-11 17:54:06 +09:00

104 lines
3.9 KiB
Rust

use tantivy::Index;
use tantivy::schema::{Field, Schema};
use tantivy::query::QueryParser;
use tantivy::query::Query;
use std::path::Path;
use tantivy::TimerTree;
use std::io::BufReader;
use std::io::BufRead;
use std::io;
use std::fs::File;
use tantivy::collector::chain;
use tantivy::collector::TopCollector;
use tantivy::collector::CountCollector;
use clap::ArgMatches;
use std::path::PathBuf;
pub fn run_bench_cli(matches: &ArgMatches) -> Result<(), String> {
let index_path = PathBuf::from(matches.value_of("index").unwrap());
let queries_path = PathBuf::from(matches.value_of("queries").unwrap()); // the unwrap is safe as long as it is comming from the main cli.
let num_repeat = try!(value_t!(matches, "num_repeat", usize).map_err(|e|format!("Failed to read num_repeat argument as an integer. {:?}", e)));
run_bench(&index_path, &queries_path, num_repeat).map_err(From::from)
}
fn extract_search_fields(schema: &Schema) -> Vec<Field> {
schema.fields()
.iter()
.enumerate()
.filter(|&(_, field_entry)| {
field_entry.is_indexed()
})
.map(|(field_id, _)| field_id as u8)
.map(Field)
.collect()
}
fn read_query_file(query_path: &Path) -> io::Result<Vec<String>> {
let query_file: File = try!(File::open(&query_path));
let file = BufReader::new(&query_file);
let mut queries = Vec::new();
for line_res in file.lines() {
let line = try!(line_res);
let query = String::from(line.trim());
queries.push(query);
}
Ok(queries)
}
fn run_bench(index_path: &Path,
query_filepath: &Path,
num_repeat: usize) -> Result<(), String> {
println!("index_path : {:?}", index_path);
println!("Query : {:?}", index_path);
println!("-------------------------------\n\n\n");
let index = try!(Index::open(index_path).map_err(|e| format!("Failed to open index.\n{:?}", e)));
let searcher = try!(index.searcher().map_err(|e| format!("Failed to acquire searcher.\n{:?}", e)));
let default_search_fields: Vec<Field> = extract_search_fields(&index.schema());
let queries = try!(read_query_file(query_filepath).map_err(|e| format!("Failed reading the query file: {}", e)));
let query_parser = QueryParser::new(index.schema(), default_search_fields);
println!("SEARCH\n");
println!("{}\t{}\t{}\t{}", "query", "num_terms", "num hits", "time in microsecs");
for _ in 0..num_repeat {
for query_txt in &queries {
let query = query_parser.parse_query(&query_txt).unwrap();
let num_terms = query.num_terms();
let mut top_collector = TopCollector::with_limit(10);
let mut count_collector = CountCollector::new();
let timing;
{
let mut collector = chain().add(&mut top_collector).add(&mut count_collector);
timing = try!(query.search(&searcher, &mut collector).map_err(|e| format!("Failed while searching query {:?}.\n\n{:?}", query_txt, e)));
}
println!("{}\t{}\t{}\t{}", query_txt, num_terms, count_collector.count(), timing.total_time());
}
}
println!("\n\nFETCH STORE\n");
println!("{}\t{}", "query", "time in microsecs");
for _ in 0..num_repeat {
for query_txt in &queries {
let query = query_parser.parse_query(&query_txt).unwrap();
let mut top_collector = TopCollector::with_limit(10);
try!(query.search(&searcher, &mut top_collector).map_err(|e| format!("Failed while retrieving document for query {:?}.\n{:?}", query, e)));
let mut timer = TimerTree::new();
{
let _scoped_timer_ = timer.open("total");
for doc_address in top_collector.docs() {
searcher.doc(&doc_address).unwrap();
}
}
println!("{}\t{}", query_txt, timer.total_time());
}
}
Ok(())
}