src/bin/test_chunk_speed2.rs

   1 use failure::*;
   2 use futures::*;
   3
   4 extern crate proxmox_backup;
   5
   6 use proxmox_backup::backup::*;
   7
   8 // Test Chunker with real data read from a file.
   9 //
  10 // To generate some test input use:
  11 // # dd if=/dev/urandom of=random-test.dat bs=1M count=1024 iflag=fullblock
  12 //
  13 // Note: I can currently get about 830MB/s
  14
  15 fn main() {
  16     if let Err(err) = proxmox_backup::tools::runtime::main(run()) {
  17         panic!("ERROR: {}", err);
  18     }
  19 }
  20
  21 async fn run() -> Result<(), Error> {
  22
  23     let file = tokio::fs::File::open("random-test.dat").await?;
  24
  25     let stream = tokio_util::codec::FramedRead::new(file, tokio_util::codec::BytesCodec::new())
  26         .map_ok(|bytes| bytes.to_vec())
  27         .map_err(Error::from);
  28
  29     //let chunk_stream = FixedChunkStream::new(stream, 4*1024*1024);
  30     let mut chunk_stream = ChunkStream::new(stream, None);
  31
  32     let start_time = std::time::Instant::now();
  33
  34     let mut repeat = 0;
  35     let mut stream_len = 0;
  36     while let Some(chunk) = chunk_stream.try_next().await? {
  37         if chunk.len() > 16*1024*1024 {
  38             panic!("Chunk too large {}", chunk.len());
  39         }
  40
  41         repeat += 1;
  42         stream_len += chunk.len();
  43
  44         println!("Got chunk {}", chunk.len());
  45     }
  46
  47     let speed = ((stream_len*1_000_000)/(1024*1024))/(start_time.elapsed().as_micros() as usize);
  48     println!("Uploaded {} chunks in {} seconds ({} MB/s).", repeat, start_time.elapsed().as_secs(), speed);
  49     println!("Average chunk size was {} bytes.", stream_len/repeat);
  50     println!("time per request: {} microseconds.", (start_time.elapsed().as_micros())/(repeat as u128));
  51
  52     Ok(())
  53 }