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WIP: Bp5 directio #3052

Closed
wants to merge 6 commits into from
Closed

WIP: Bp5 directio #3052

wants to merge 6 commits into from

Commits on Feb 9, 2022

  1. initial changes to add O_DIRECT parameter to BP5 and POSIX transport.… 

    … Missing proper alignment of BP5 buffer in memory.
    @pnorbert
    pnorbert committed Feb 9, 2022
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Commits on Feb 10, 2022

  1. Align memory allocations in ChunkV to a certain size. Required for di… 

    …rectio. Needs cleanup and wiring up to the engine for setting the alignment value. Missing is handling allocations in multiples of a block size.
    @pnorbert
    pnorbert committed Feb 10, 2022
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  2. directIO for BP5 with control parameters bool DirectIO, uint DirectIO… 

    …AlignOffset and uint DirectIOAlignBuffer. Most test pass when turning directio on by default (will be false). Flushing does not work yet.
    @pnorbert
    pnorbert committed Feb 10, 2022
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Commits on Feb 11, 2022

  1. Align buffers in PerformPuts and FlushData as well when using direct … 

    …io. Add test for O_DIRECT flag.
    @pnorbert
    pnorbert committed Feb 11, 2022
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  2. Align chunk (re)allocations to block size, add block size argument to… 

    … BufferV, and make a directio test where one chunk is shrunk before filling another chunk.
    @pnorbert
    pnorbert committed Feb 11, 2022
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  3. fill aligned parts of chunks with zeros - an attempt to avoid MSAN er… 

    …rors that I cannot see.
    @pnorbert
    pnorbert committed Feb 11, 2022
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