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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-1422) .Net: Marshalling can be optimized for fixed-length objects.
Date Fri, 11 Sep 2015 14:00:51 GMT
Vladimir Ozerov created IGNITE-1422:

             Summary: .Net: Marshalling can be optimized for fixed-length objects.
                 Key: IGNITE-1422
                 URL: https://issues.apache.org/jira/browse/IGNITE-1422
             Project: Ignite
          Issue Type: Task
          Components: interop
    Affects Versions: 1.1.4
            Reporter: Vladimir Ozerov
             Fix For: ignite-1.5

Sometimes we can guess user object length in advance:
1) Strict rule: it is "reflective" and contains only fixed-length fields.
2) Speculative rule: It is "marshal aware", contains only fixed-length fields and there is
only one metadata "path".

In these cases we can do the following:
1) No tracking of length and raw offset.
2) Header can be written as one memcpy() rather than as multiple int/byte/bool writes.

We need to have a fallback strategy for a cases when new metadata path appears or user write
raw data. It is very easy: if expected and actual lengths differ at the end, set proper values.

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