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Posted to dev@ratis.apache.org by GitBox <gi...@apache.org> on 2020/11/24 12:08:53 UTC
[GitHub] [incubator-ratis] runzhiwang edited a comment on pull request #296: RATIS-1175. DataStreamOutput should support FileChannel#transferTo.
runzhiwang edited a comment on pull request #296:
URL: https://github.com/apache/incubator-ratis/pull/296#issuecomment-732925118
@szetszwo Hi, in transferTo method there are three methods: transferToDirectly which use sendfile and is the fastest, transferToTrustedChannel which use MapByteBuffer, transferToArbitraryChannel which use HeapByteBuffer and is the slowest. Our code use the slowest transferToArbitraryChannel , which will use HeapByteBuffer as the image shows. Not sure whether can we support transferToDirectly or transferToTrustedChannel, maybe we can not use netty if we want to support transferToDirectly.
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