perf: buffer writes when serializing json

gakonst · Aug 12, 2023 · 57f90fe · 57f90fe
1 parent 5145992
commit 57f90fe
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/ethers-solc/src/cache.rs b/ethers-solc/src/cache.rs
@@ -16,6 +16,7 @@ use std::{
         hash_map, BTreeSet, HashMap, HashSet,
     },
     fs::{self},
+    io::Write,
     path::{Path, PathBuf},
     time::{Duration, UNIX_EPOCH},
 };
@@ -139,7 +140,9 @@ impl SolFilesCache {
             self.len(),
             path.display()
         );
-        serde_json::to_writer_pretty(file, self)?;
+        let mut writer = std::io::BufWriter::with_capacity(1024 * 256, file);
+        serde_json::to_writer_pretty(&mut writer, self)?;
+        writer.flush().map_err(|e| SolcError::io(e, path))?;
         tracing::trace!("cache file located: \"{}\"", path.display());
         Ok(())
     }

diff --git a/ethers-solc/src/compile/mod.rs b/ethers-solc/src/compile/mod.rs
@@ -8,7 +8,7 @@ use semver::{Version, VersionReq};
 use serde::{de::DeserializeOwned, Deserialize, Serialize};
 use std::{
     fmt,
-    io::BufRead,
+    io::{BufRead, Write},
     path::{Path, PathBuf},
     process::{Command, Output, Stdio},
     str::FromStr,