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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.

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Front-End Data Structures

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  1. 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

  2. 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

  3. Driver Buffers

  4. 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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