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readAllData: Reuse small file buffers (#13530)

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(Re)use small buffers for small readAllData operations.
This commit is contained in:
Klaus Post
2021-10-28 17:02:22 -07:00
committed by GitHub
parent 2f1ee25f50
commit c603f85488
3 changed files with 27 additions and 4 deletions
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3
cmd/storage-rest-server.go
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@@ -497,6 +497,8 @@ func (s *storageRESTServer) ReadAllHandler(w http.ResponseWriter, r *http.Reques
s.writeErrorResponse(w, err)
return
}
// Reuse after return.
defer metaDataPoolPut(buf)
w.Header().Set(xhttp.ContentLength, strconv.Itoa(len(buf)))
w.Write(buf)
}
@@ -535,6 +537,7 @@ func (s *storageRESTServer) ReadFileHandler(w http.ResponseWriter, r *http.Reque
verifier = NewBitrotVerifier(BitrotAlgorithmFromString(vars[storageRESTBitrotAlgo]), hash)
}
buf := make([]byte, length)
defer metaDataPoolPut(buf) // Reuse if we can.
_, err = s.storage.ReadFile(r.Context(), volume, filePath, int64(offset), buf, verifier)
if err != nil {
s.writeErrorResponse(w, err)