54 lines
1.6 KiB
Rust
54 lines
1.6 KiB
Rust
use anyhow::{Error};
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use futures::*;
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extern crate proxmox_backup;
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use proxmox_backup::backup::*;
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// Test Chunker with real data read from a file.
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//
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// To generate some test input use:
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// # dd if=/dev/urandom of=random-test.dat bs=1M count=1024 iflag=fullblock
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//
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// Note: I can currently get about 830MB/s
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fn main() {
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if let Err(err) = proxmox_backup::tools::runtime::main(run()) {
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panic!("ERROR: {}", err);
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}
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}
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async fn run() -> Result<(), Error> {
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let file = tokio::fs::File::open("random-test.dat").await?;
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let stream = tokio_util::codec::FramedRead::new(file, tokio_util::codec::BytesCodec::new())
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.map_ok(|bytes| bytes.to_vec())
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.map_err(Error::from);
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//let chunk_stream = FixedChunkStream::new(stream, 4*1024*1024);
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let mut chunk_stream = ChunkStream::new(stream, None);
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let start_time = std::time::Instant::now();
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let mut repeat = 0;
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let mut stream_len = 0;
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while let Some(chunk) = chunk_stream.try_next().await? {
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if chunk.len() > 16*1024*1024 {
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panic!("Chunk too large {}", chunk.len());
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}
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repeat += 1;
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stream_len += chunk.len();
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println!("Got chunk {}", chunk.len());
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}
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let speed = ((stream_len*1_000_000)/(1024*1024))/(start_time.elapsed().as_micros() as usize);
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println!("Uploaded {} chunks in {} seconds ({} MB/s).", repeat, start_time.elapsed().as_secs(), speed);
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println!("Average chunk size was {} bytes.", stream_len/repeat);
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println!("time per request: {} microseconds.", (start_time.elapsed().as_micros())/(repeat as u128));
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Ok(())
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}
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