Cristian Opris created PARQUET-186:
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Summary: Poor performance in SnappyCodec because of string concat
in tight loop
Key: PARQUET-186
URL: https://issues.apache.org/jira/browse/PARQUET-186
Project: Parquet
Issue Type: Bug
Components: parquet-mr
Affects Versions: parquet-mr_1.6.0
Reporter: Cristian Opris
String concatenation for SnappyUtil.validateBuffer which is called in a tight
loop from both compress/decompress.
This shows up as taking 60% of time in the profiler
{code}
public static void validateBuffer(byte[] buffer, int off, int len) {
Preconditions.checkNotNull(buffer, "buffer");
Preconditions.checkArgument(off >= 0 && len >= 0 && off <= buffer.length -
len,
"Invalid offset or length. Out of buffer bounds. buffer.length=" +
buffer.length
+ " off=" + off + " len=" + len);
}
{code}
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