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26 commits

Author SHA1 Message Date
Julius Volz f2b48b8c4a Make getValuesAtIntervalOp consume all chunk data in one pass. 
This is mainly a small performance improvement, since we skip past the last
extracted time immediately if it was also the last sample in the chunk, instead
of trying to extract non-existent values before the chunk end again and again
and only gradually approaching the end of the chunk.
 2013-05-22 18:14:45 +02:00
Julius Volz 83d60bed89 extractValuesAroundTime() code simplification. 2013-05-22 18:14:45 +02:00
Julius Volz 71a3172abb Fix and optimize getValuesAtIntervalOp data extraction. 
- only the data extracted in the last loop iteration of ExtractSamples() was
  emitted as output
- if e.g. op interval < sample interval, there were situations where the same
  sample was added multiple times to the output
 2013-05-14 13:55:17 +02:00
Julius Volz 05afa970d2 Slice expression simplifications. 2013-05-07 13:22:29 +02:00
Julius Volz 99dcbe0f94 Integrate memory and disk layers in view rendering. 2013-04-19 16:01:27 +02:00
Julius Volz a33d2726bc Mark range op as consumed if it receives no data points in range. 2013-03-22 11:50:02 +01:00
Julius Volz becc278eb6 Fix two bugs in range op time advancement. 2013-03-21 18:15:52 +01:00
Matt T. Proud ceb6611957 Fix regression in subsequent range op. compactions. 
We have an anomaly whereby subsequent range operations fail to be
compacted into one single range operation.  This fixes such
behavior.
 2013-03-21 18:11:04 +01:00
Matt T. Proud bd8bb0edfd One additional reduction. 2013-03-21 18:11:03 +01:00
Matt T. Proud 73b463e814 Additional simplifications. 2013-03-21 18:11:03 +01:00
Matt T. Proud fd47ac570f Implied simplifications. 2013-03-21 18:11:03 +01:00
Matt T. Proud 51a0f21cf8 Interim documentation 2013-03-21 18:11:03 +01:00
Matt T. Proud b470f925b7 Extract rewriting of interval queries. 2013-03-21 18:11:03 +01:00
Matt T. Proud eb721fd220 Include note about greediest range. 2013-03-21 18:11:03 +01:00
Julius Volz e0dbc8c561 Fix edge cases in data extraction for point and interval ops. 2013-03-21 18:11:02 +01:00
Matt T. Proud 896e172463 Extract time group optimizations. 2013-03-21 18:08:48 +01:00
Matt T. Proud 5a71814778 Additional greediness. 2013-03-21 18:08:48 +01:00
Matt T. Proud b00ca7e422 Refactor some greediness computations. 2013-03-21 18:08:48 +01:00
Matt T. Proud 978acd4e96 Simplify time group optimizations. 
The old code performed well according to the benchmarks, but the
new code shaves 1/6th of the time off the original and with less
code.
 2013-03-21 18:08:48 +01:00
Matt T. Proud d7b534e624 Update documentation. 2013-03-21 18:08:48 +01:00
Matt T. Proud 615e6d13d7 Run `make format`. 2013-03-21 18:08:47 +01:00
Julius Volz caeb759ed7 Add tests for and fix getValuesAlongRangeOp value extraction. 2013-03-21 18:08:47 +01:00
Julius Volz e2fb497eba Add operator value extraction tests. 2013-03-21 18:08:47 +01:00
Julius Volz 12a8863582 Add data extraction methods to operator types. 2013-03-21 18:08:47 +01:00
Matt T. Proud d5380897c3 Cleanups and adds performance regression. 2013-03-21 18:06:51 +01:00
Matt T. Proud 41068c2e84 Checkpoint. 2013-03-21 18:06:51 +01:00