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Merge pull request #397 from knowsys/dict-exp
use HashMapDictionary
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| use flate2::read::MultiGzDecoder; | ||
| use std::env; | ||
| use std::fs::File; | ||
| use std::io::prelude::*; | ||
| use std::io::stdin; | ||
| use std::io::BufReader; | ||
|
|
||
| use nemo::meta::{timing::TimedDisplay, TimedCode}; | ||
| use nemo_physical::dictionary::{ | ||
| hash_map_dictionary::HashMapDictionary, meta_dictionary::MetaDictionary, | ||
| prefixed_string_dictionary::PrefixedStringDictionary, string_dictionary::StringDictionary, | ||
| AddResult, Dictionary, | ||
| }; | ||
|
|
||
| fn create_dictionary(dict_type: &str) -> Box<dyn Dictionary> { | ||
| match dict_type { | ||
| "hash" => { | ||
| println!("Using StringDictionary."); | ||
| Box::new(StringDictionary::new()) | ||
| } | ||
| "hashmap" => { | ||
| println!("Using HashMapDictionary."); | ||
| Box::new(HashMapDictionary::new()) | ||
| } | ||
| "prefix" => { | ||
| println!("Using PrefixedStringDictionary."); | ||
| Box::new(PrefixedStringDictionary::new()) | ||
| } | ||
| "meta" => { | ||
| println!("Using MetaDictionary."); | ||
| Box::new(MetaDictionary::new()) | ||
| } | ||
| _ => panic!("Unexpected dictionary type '{}'.", dict_type), | ||
| } | ||
| } | ||
|
|
||
| fn main() { | ||
| env_logger::init(); | ||
| TimedCode::instance().start(); | ||
|
|
||
| let args: Vec<_> = env::args().collect(); | ||
| if args.len() < 3 { | ||
| println!("Usage: dict-bench <filename> <dicttype> <nonstop>"); | ||
| println!( | ||
| " <filename> File with dictionary entries, one per line, possibly with duplicates." | ||
| ); | ||
| println!( | ||
| " <dicttype> Identifier for the dictionary to test, e.g., \"hash\" or \"prefix\"." | ||
| ); | ||
| println!( | ||
| " <nonstop> If anything is given here, the program will terminate without asking for a prompt." | ||
| ); | ||
| } | ||
|
|
||
| let filename = &args[1]; | ||
| let dicttype = &args[2]; | ||
|
|
||
| let reader = BufReader::new(MultiGzDecoder::new( | ||
| File::open(filename).expect("Cannot open file."), | ||
| )); | ||
|
|
||
| let mut dict = create_dictionary(dicttype); | ||
| let mut count_lines = 0; | ||
| let mut count_unique = 0; | ||
| let mut bytes = 0; | ||
|
|
||
| TimedCode::instance().sub("Dictionary filling").start(); | ||
|
|
||
| println!("Starting to fill dictionary ..."); | ||
|
|
||
| for l in reader.lines() { | ||
| let s = l.unwrap(); | ||
| let b = s.len(); | ||
|
|
||
| let entry_status = dict.add_string(s); | ||
| match entry_status { | ||
| AddResult::Fresh(_value) => { | ||
| bytes += b; | ||
| count_unique += 1; | ||
| } | ||
| AddResult::Known(_value) => {} | ||
| AddResult::Rejected => {} | ||
| } | ||
|
|
||
| count_lines += 1; | ||
| } | ||
|
|
||
| TimedCode::instance().sub("Dictionary filling").stop(); | ||
|
|
||
| println!( | ||
| "Processed {} strings (dictionary contains {} unique strings with {} bytes overall).", | ||
| count_lines, count_unique, bytes | ||
| ); | ||
|
|
||
| TimedCode::instance().stop(); | ||
|
|
||
| println!( | ||
| "\n{}", | ||
| TimedCode::instance().create_tree_string( | ||
| "dict-bench", | ||
| &[ | ||
| TimedDisplay::default(), | ||
| TimedDisplay::default(), | ||
| TimedDisplay::new(nemo::meta::timing::TimedSorting::LongestThreadTime, 0) | ||
| ] | ||
| ) | ||
| ); | ||
|
|
||
| if args.len() < 4 { | ||
| println!("All done. Press return to end benchmark (and free all memory)."); | ||
| let mut s = String::new(); | ||
| stdin().read_line(&mut s).expect("No string entered?"); | ||
| } | ||
|
|
||
| if dict.len() == 123456789 { | ||
| // FWIW, prevent dict from going out of scope before really finishing | ||
| println!("Today is your lucky day."); | ||
| } | ||
| } |
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