diff options
| author | Andrew Gallant <jamslam@gmail.com> | 2021-03-23 17:45:02 -0400 |
|---|---|---|
| committer | Andrew Gallant <jamslam@gmail.com> | 2021-03-23 17:45:02 -0400 |
| commit | 46fb77c20cc46e61117d68a68bb306cc665c6da6 (patch) | |
| tree | 588dbe43c9e58d1788e3ccf9127fc4a52e33e9f5 | |
| parent | 6a1c3253e02427d3e7ad6389b624b1a38eae61e1 (diff) | |
searcher: bump buffer size
This increases the initial buffer size from 8KB to 64KB. This actually
leads to a reasonably noticeable improvement in at least one work-load,
and is unlikely to regress in any other case. Also, since Rust programs
(at least on Linux) seem to always use a minimum of 6-8MB of memory,
adding an extra 56KB is negligible.
Before:
$ hyperfine -i "rg 'zqzqzqzq' OpenSubtitles2018.raw.en --no-mmap"
Benchmark #1: rg 'zqzqzqzq' OpenSubtitles2018.raw.en --no-mmap
Time (mean ± σ): 2.109 s ± 0.012 s [User: 565.5 ms, System: 1541.6 ms]
Range (min … max): 2.094 s … 2.128 s 10 runs
After:
$ hyperfine -i "rg 'zqzqzqzq' OpenSubtitles2018.raw.en --no-mmap"
Benchmark #1: rg 'zqzqzqzq' OpenSubtitles2018.raw.en --no-mmap
Time (mean ± σ): 1.802 s ± 0.006 s [User: 462.3 ms, System: 1337.9 ms]
Range (min … max): 1.795 s … 1.814 s 10 runs
| -rw-r--r-- | crates/searcher/src/line_buffer.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crates/searcher/src/line_buffer.rs b/crates/searcher/src/line_buffer.rs index bd3a273d..d0f2a87a 100644 --- a/crates/searcher/src/line_buffer.rs +++ b/crates/searcher/src/line_buffer.rs @@ -4,7 +4,7 @@ use std::io; use bstr::ByteSlice; /// The default buffer capacity that we use for the line buffer. -pub(crate) const DEFAULT_BUFFER_CAPACITY: usize = 8 * (1 << 10); // 8 KB +pub(crate) const DEFAULT_BUFFER_CAPACITY: usize = 64 * (1 << 10); // 8 KB /// The behavior of a searcher in the face of long lines and big contexts. /// |