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https://issues.apache.org/jira/browse/IGNITE-13?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15904736#comment-15904736
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Vadim Opolski commented on IGNITE-13:
-------------------------------------

Results of measuring

Benchmark                                                                 
(message)                                              Mode  Cnt    Score   
Error  Units
LatchBenchmark.binaryHeapOutputStreamDirect    
TestTestTestTestTestTestTestTestTest  avgt   50  128,036 ± 4,360  ns/op
LatchBenchmark.binaryHeapOutputStreamDirect                            
TestTestTest                    avgt   50    44,934 ± 1,463  ns/op
LatchBenchmark.binaryHeapOutputStreamDirect                                    
Test                          avgt   50    21,254 ± 0,776  ns/op
LatchBenchmark.binaryHeapOutputStreamInDirect  
TestTestTestTestTestTestTestTestTest avgt   50    83,262 ± 2,264  ns/op
LatchBenchmark.binaryHeapOutputStreamInDirect                          
TestTestTest                   avgt   50    58,975 ± 1,559  ns/op
LatchBenchmark.binaryHeapOutputStreamInDirect                                  
Test                         avgt   50    48,506 ± 1,116  ns/op


> String marshalling can be optimized for binary marshaller
> ---------------------------------------------------------
>
>                 Key: IGNITE-13
>                 URL: https://issues.apache.org/jira/browse/IGNITE-13
>             Project: Ignite
>          Issue Type: Task
>          Components: general
>            Reporter: Yakov Zhdanov
>            Assignee: Vadim Opolski
>
> Currently string serialization is done in two steps (see 
> {{BinaryWriterExImpl#doWriteString}}):
> {code}
> strArr = BinaryUtils.strToUtf8Bytes(val); // Encode string into byte array.
> out.writeByteArray(strArr);               // Write byte array into stream.
> {code}
> Probably we can write directly into stream while string is encoded, without 
> intermediate array. This both reduces memory consumption and eliminates array 
> copy step.
> Need to create a micro benchmark first to check if it gives any improvement.



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