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* Read bulk reply length in one pass.onepass-bulkantirez2014-04-231-20/+43
| | | | See issue #1699.
* redis-cli help.h updated.antirez2014-04-221-2/+73
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* generate-command-help.rb updated with new hyperloglog group.antirez2014-04-221-1/+2
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* Fuzzy test for ZREMRANGEBYLEX added.antirez2014-04-181-1/+41
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* ZREMRANGEBYLEX memory leak removed calling zslFreeLexRange().antirez2014-04-181-2/+5
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* PFCOUNT multi-key test added.antirez2014-04-181-0/+15
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* Speedup hllRawSum() processing 8 bytes per iteration.antirez2014-04-171-7/+15
| | | | | | | | | | The internal HLL raw encoding used by PFCOUNT when merging multiple keys is aligned to 8 bits (1 byte per register) so we can exploit this to improve performances by processing multiple bytes per iteration. In benchmarks the new code was several times faster with HLLs with many registers set to zero, while no slowdown was observed with populated HLLs.
* Speedup SUM(2^-reg[m]) in HyperLogLog computation.antirez2014-04-171-4/+8
| | | | | | When the register is set to zero, we need to add 2^-0 to E, which is 1, but it is faster to just add 'ez' at the end, which is the number of registers set to zero, a value we need to compute anyway.
* PFCOUNT support for multi-key union.antirez2014-04-172-6/+73
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* HyperLogLog low level merge extracted from PFMERGE.antirez2014-04-171-39/+54
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* ZREMRANGEBYLEX implemented.antirez2014-04-173-0/+77
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* Always pass sorted set range objects by reference.antirez2014-04-173-49/+51
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* ZREMRANGE* commands refactored into a single generic function.antirez2014-04-171-65/+58
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* Sorted set lex ranges stress tester.antirez2014-04-171-0/+65
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* Basic ZRANGEBYLEX / ZLEXCOUNT tests.antirez2014-04-171-0/+56
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* Pass by pointer and release of lex ranges.antirez2014-04-161-15/+42
| | | | | | | Given that the code was written with a 2 years pause... something strange happened in the middle. So there was no function to free a lex range min/max objects, and in some places the range was passed by value.
* ZLEXCOUNT implemented.antirez2014-04-163-0/+75
| | | | Like ZCOUNT for lexicographical ranges.
* More HyperLogLog tests.antirez2014-04-161-0/+76
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* HyperLogLog invalid representation error code set to INVALIDOBJ.antirez2014-04-161-7/+7
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* PFDEBUG TODENSE added.antirez2014-04-161-0/+15
| | | | Converts HyperLogLogs from sparse to dense. Used for testing.
* User-defined switch point between sparse-dense HLL encodings.antirez2014-04-155-6/+32
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* PFSELFTEST improved with sparse encoding checks.antirez2014-04-151-4/+29
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* PFDEBUG ENCODING added.antirez2014-04-141-0/+7
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* Set HLL_SPARSE_MAX to 3000.antirez2014-04-141-1/+1
| | | | | | | | | | | | | | | After running a few benchmarks, 3000 looks like a reasonable value to keep HLLs with a few thousand elements small while the CPU cost is still not huge. This covers all the cases where the dense representation would use N orders of magnitude more space, like in the case of many HLLs with carinality of a few tens or hundreds. It is not impossible that in the future this gets user configurable, however it is easy to pick an unreasoable value just looking at savings in the space dimension without checking what happens in the time dimension.
* Error message for invalid HLL objects unified.antirez2014-04-141-5/+7
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* PFMERGE fixed to work with sparse encoding.antirez2014-04-142-10/+47
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* Mark PFDEBUG as write command in the commands table.antirez2014-04-141-1/+1
| | | | It is safer since it is able to have side effects.
* Correctly replicate PFDEBUG GETREG.antirez2014-04-141-3/+6
| | | | | Even if it is a debugging command, make sure that when it forces a change in encoding, the command is propagated.
* Added assertion in hllSparseAdd() when promotion to dense occurs.antirez2014-04-141-1/+11
| | | | | If we converted to dense, a register must be updated in the dense representation.
* hllSparseAdd(): speed optimization.antirez2014-04-141-12/+15
| | | | | Mostly by reordering opcodes check conditional by frequency of opcodes in larger sparse-encoded HLLs.
* Detect corrupted sparse HLLs in hllSparseSum().antirez2014-04-141-11/+18
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* hllSparseAdd(): faster code removing conditional.antirez2014-04-141-5/+14
| | | | | Bottleneck found profiling. Big run time improvement found when testing after the change.
* Comment typo in hllSparseAdd(). first -> fits.antirez2014-04-141-1/+1
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* Merge adjacent VAL opcodes in hllSparseAdd().antirez2014-04-141-5/+36
| | | | | As more values are added splitting ZERO or XZERO opcodes, try to merge adjacent VAL opcodes if they have the same value.
* More robust HLL_SPARSE macros protecting 'p' with parens.antirez2014-04-141-8/+8
| | | | Now the macros will work with arguments such as "ptr+1".
* hllSparseAdd() opcode seek stop condition fixed.antirez2014-04-141-1/+1
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* Fixed error message generation in PFDEBUG GETREG.antirez2014-04-141-1/+2
| | | | | | Bulk length for registers was emitted too early, so if there was a bug the reply looked like a long array with just one element, blocking the client as result.
* Fixed memmove() count in hllSparseAdd().antirez2014-04-141-1/+1
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* hllSparseAdd(): more correct dense conversion conditional.antirez2014-04-141-1/+1
| | | | | We want to promote if the total string size exceeds the resulting size after the upgrade.
* hllSparseToDense(): sanity check added.antirez2014-04-141-5/+20
| | | | | | | | | | The function checks if all the HLL_REGISTERS were processed during the convertion from sparse to dense encoding, returning REDIS_OK or REDIS_ERR to signal a corruption problem. A bug in PFDEBUG GETREG was fixed: when the object is converted to the dense representation we need to reassign the new pointer to the header structure pointer.
* PFDEBUG DECODE added.antirez2014-04-141-0/+35
| | | | | | Provides a human readable description of the opcodes composing a run-length encoded HLL (sparse encoding). The command is only useful for debugging / development tasks.
* PFDEBUG added, PFGETREG removed.antirez2014-04-133-9/+25
| | | | | PFDEBUG will be the interface to do debugging tasks with a key containing an HLL object.
* hllSparseToDense API changed to take ref to object.antirez2014-04-131-6/+10
| | | | | | The new API takes directly the object doing everything needed to turn it into a dense representation, including setting the new representation as object->ptr.
* hllSparseAdd() sanity check for span != 0 added.antirez2014-04-131-0/+3
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* Fix hllSparseAdd() new sequence replacement when next is NULL.antirez2014-04-121-4/+2
| | | | | sdsIncrLen() must be called anyway even if we are replacing the last oppcode of the sparse representation.
* Fix seqlen computation in hllSparseAdd().antirez2014-04-121-1/+1
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* Abstract hllSparseAdd() / hllDenseAdd() via hllAdd().antirez2014-04-121-4/+19
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* hllSparseSum(): multiply 1 * runlen for zero entries.antirez2014-04-121-2/+2
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* Macro HLL_SPARSE_XZERO_LEN fixed.antirez2014-04-121-1/+1
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* Fix HLL sparse object creation #2.antirez2014-04-121-2/+2
| | | | Two vars initialized to wrong values in createHLLObject().
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