daiduo/TurboPFor-Integer-Compression
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2017-02-04 14:49:03 +01:00
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@ -128,6 +128,16 @@ Block size: 64Ki = 256k bytes. Ki=1024 Integers
"lz4+DT 64Ki" = Delta+Transpose from TurboPFor + lz4<br>
"blosc_lz4" internal lz4 compressor+vectorized shuffle
##### - Transpose/Shuffle
|Size |Ratio %|Bits/Integer|C Time MI/s|D Time MI/s|Function |Lib|
|----------:|-----:|----:|------:|------:|---------------------|------|
|100000000|100.0|32.00|**1818.38**|**2186.15**|**TP8_32**|TurboPFor/byte transpose|
|100000000|100.0|32.00|**1922.38**|1913.88|Blosc_Shuffle AVX2|Blosc AVX2|
|100000000|100.0|32.00|1261.27|1776.29|TP4_32 SSE|TurboPFor/Nibble transpose|
|100000000|100.0|32.00|1655.02|1571.47|Blosc Shuffle SSE|Blosc|
|100000000|100.0|32.00| 788.85|843.42|BitShuffle AVX2|Bitshuffle|
##### - Compressed Inverted Index Intersections with GOV2<br />
GOV2: 426GB, 25 Millions documents, average doc. size=18k.