Front end data structures
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Front-End Data Structures. Data per BPM (24 B): MIBPMTurnData Position Intensity I/Q Status Data per Measurement (~1 kB): MIBPMDataEntry Timestamp Status Data source Machine state (cycle) Particle type (proton/pbar) Filter setting (53MHz/2.5MHz) 40  MIBPMTurnData.

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Front-End Data Structures

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Front end data structures

Front-End Data Structures

  • Data per BPM (24 B): MIBPMTurnData

    • Position

    • Intensity

    • I/Q

    • Status

  • Data per Measurement (~1 kB): MIBPMDataEntry

    • Timestamp

    • Status

    • Data source

    • Machine state (cycle)

    • Particle type (proton/pbar)

    • Filter setting (53MHz/2.5MHz)

    • 40 MIBPMTurnData


Front end data structures

  • Flash turn-by-turn buffers can be assigned dynamically to states

    • States use flash turn-by-turn buffers that are actually used.

    • Buffers are available from a common pool.

  • Remaining buffers are statically assigned


Front end data structures

Driver Buffers


Front end data structures

Memory Usage

fccts0:mibpm> memShow

status bytes blocks avg block max block

------ ---------- --------- ---------- ----------

current

free 148814528 324 459304 131984608

alloc 351940192 315326 1116 -

For 7 flash turn-by-turn per state:

fccts0:mibpm> memShow

status bytes blocks avg block max block

------ ---------- --------- ---------- ----------

current

free 96988672 325 298426 80158560

alloc 403766048 366816 1100 -


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