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plumbing: format/idxfile, avoid creating temporary buffers to decode integers#1136
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mcuadros merged 3 commits intosrc-d:masterfrom Apr 26, 2019
Merged
plumbing: format/idxfile, avoid creating temporary buffers to decode integers#1136mcuadros merged 3 commits intosrc-d:masterfrom
mcuadros merged 3 commits intosrc-d:masterfrom
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…integers Signed-off-by: Filip Navara <[email protected]>
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The profile shows there's still some room for optimization here:
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…y not using iterator and not loading CRC Signed-off-by: Filip Navara <[email protected]>
…iterator twice Signed-off-by: Filip Navara <[email protected]>
jfontan
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Apr 26, 2019
| copy(hash[:], idx.Names[mappedFirstLevel][secondLevel*objectIDLength:]) | ||
| offset := int64(idx.getOffset(mappedFirstLevel, int(secondLevel))) | ||
| idx.offsetHash[offset] = hash | ||
| secondLevel++ |
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Nope. The loop is a bit weird since it's iterating over two variables. Maybe there's some better Go syntax for it?
secondLevel goes from 0 to maximum value on that fanout level (not checked directly). i goes from 0 over both the inner and outer loop and bounds the inner loop.
jfontan
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Apr 26, 2019
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On Linux repository (210 MB pack index; 6,596,227 objects) this saves around 2 seconds in
genOffsetHashfunction.