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DPL: speedup old split parts indexing #15254

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Merged
ktf merged 1 commit into from
Apr 2, 2026
+10 −0
Merged

DPL: speedup old split parts indexing #15254

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10 changes: 10 additions & 0 deletions Framework/Core/include/Framework/DataModelViews.h
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Original file line number Diff line number Diff line change
Expand Up @@ -100,12 +100,22 @@ struct get_pair {
}
size_t diff = self.pairId - count;
if (header->splitPayloadParts > 1 && header->splitPayloadIndex == header->splitPayloadParts) {
// New style: one header followed by splitPayloadParts contiguous payloads.
count += header->splitPayloadParts;
if (self.pairId < count) {
return {mi, mi + 1 + diff};
}
mi += header->splitPayloadParts + 1;
} else if (header->splitPayloadParts > 1 && header->splitPayloadIndex != header->splitPayloadParts) {
// Old style multi-part: splitPayloadParts [header, payload] pairs.
// We are at the first pair of the block; jump directly.
if (diff < header->splitPayloadParts) {
return {mi + 2 * diff, mi + 2 * diff + 1};
}
count += header->splitPayloadParts;
mi += 2 * header->splitPayloadParts;
} else {
// Single [header, payload] pair (splitPayloadParts == 0).
if (self.pairId == count) {
return {mi, mi + 1};
}
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