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Author SHA1 Message Date
Brian Brazil e9ede51753 Remove last vestiges of never used composite index code. 
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
 2020-01-07 12:20:03 +00:00
Josh Soref 91d76c8023 Spelling (#6517) 
* spelling: alertmanager

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* spelling: attributes

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* spelling: autocomplete

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* spelling: bootstrap

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* spelling: caught

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* spelling: chunkenc

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* spelling: compaction

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* spelling: corrupted

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* spelling: deletable

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* spelling: expected

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* spelling: fine-grained

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* spelling: initialized

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* spelling: iteration

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* spelling: javascript

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* spelling: multiple

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* spelling: number

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* spelling: overlapping

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* spelling: possible

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* spelling: postings

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* spelling: procedure

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* spelling: programmatic

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* spelling: queuing

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* spelling: querier

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* spelling: repairing

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* spelling: retention

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* spelling: sample

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* spelling: semantic

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* spelling: software [LICENSE]

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* spelling: subsequently

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* spelling: ressamples

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 2020-01-02 15:54:09 +01:00
Brian Brazil d782387f81
Stream symbols during compaction. (#6468) 
Rather than buffer up symbols in RAM, do it one by one
during compaction. Then use the reader's symbol handling
for symbol lookups during the rest of the index write.

There is some slowdown in compaction, due to having to look through a file
rather than a hash lookup. This is noise to the overall cost of compacting
series with thousands of samples though.

benchmark                                                                                   old ns/op       new ns/op       delta
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=101-4        539917175       675341565       +25.08%
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=1001-4       2441815993      2477453524      +1.46%
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=2001-4       3978543559      3922909687      -1.40%
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=5001-4       8430219716      8586610007      +1.86%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=101-4      1786424591      1909552782      +6.89%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=1001-4     5328998202      6020839950      +12.98%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=2001-4     10085059958     11085278690     +9.92%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=5001-4     25497010155     27018079806     +5.97%
BenchmarkCompactionFromHead/labelnames=1,labelvalues=100000-4                               2427391406      2817217987      +16.06%
BenchmarkCompactionFromHead/labelnames=10,labelvalues=10000-4                               2592965497      2538805050      -2.09%
BenchmarkCompactionFromHead/labelnames=100,labelvalues=1000-4                               2437388343      2668012858      +9.46%
BenchmarkCompactionFromHead/labelnames=1000,labelvalues=100-4                               2317095324      2787423966      +20.30%
BenchmarkCompactionFromHead/labelnames=10000,labelvalues=10-4                               2600239857      2096973860      -19.35%

benchmark                                                                                   old allocs     new allocs     delta
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=101-4        500851         470794         -6.00%
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=1001-4       821527         791451         -3.66%
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=2001-4       1141562        1111508        -2.63%
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=5001-4       2141576        2111504        -1.40%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=101-4      871466         841424         -3.45%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=1001-4     1941428        1911415        -1.55%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=2001-4     3071573        3041510        -0.98%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=5001-4     6771648        6741509        -0.45%
BenchmarkCompactionFromHead/labelnames=1,labelvalues=100000-4                               731493         824888         +12.77%
BenchmarkCompactionFromHead/labelnames=10,labelvalues=10000-4                               793918         887311         +11.76%
BenchmarkCompactionFromHead/labelnames=100,labelvalues=1000-4                               811842         905204         +11.50%
BenchmarkCompactionFromHead/labelnames=1000,labelvalues=100-4                               832244         925081         +11.16%
BenchmarkCompactionFromHead/labelnames=10000,labelvalues=10-4                               921553         1019162        +10.59%

benchmark                                                                                   old bytes      new bytes      delta
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=101-4        40532648       35698276       -11.93%
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=1001-4       60340216       53409568       -11.49%
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=2001-4       81087336       72065552       -11.13%
BenchmarkCompaction/type=normal,blocks=4,series=10000,samplesPerSeriesPerBlock=5001-4       142485576      120878544      -15.16%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=101-4      208661368      203831136      -2.31%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=1001-4     347345904      340484696      -1.98%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=2001-4     585185856      576244648      -1.53%
BenchmarkCompaction/type=vertical,blocks=4,series=10000,samplesPerSeriesPerBlock=5001-4     1357641792     1358966528     +0.10%
BenchmarkCompactionFromHead/labelnames=1,labelvalues=100000-4                               126486664      119666744      -5.39%
BenchmarkCompactionFromHead/labelnames=10,labelvalues=10000-4                               122323192      115117224      -5.89%
BenchmarkCompactionFromHead/labelnames=100,labelvalues=1000-4                               126404504      119469864      -5.49%
BenchmarkCompactionFromHead/labelnames=1000,labelvalues=100-4                               119047832      112230408      -5.73%
BenchmarkCompactionFromHead/labelnames=10000,labelvalues=10-4                               136576016      116634800      -14.60%

Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
 2019-12-17 19:49:54 +00:00
Brian Brazil 767fa704b6 Load only some offsets into the symbol table into memory. 
Rather than keeping the entire symbol table in memory, keep every nth
offset and walk from there to the entry we need. This ends up slightly
slower, ~360ms per 1M series returned from PostingsForMatchers which is
not much considering the rest of the CPU such a query would go on to
use.

Make LabelValues use the postings tables, rather than having
to do symbol lookups. Use yoloString, as PostingsForMatchers
doesn't need the strings to stick around and adjust the API
call to keep the Querier open until it's all marshalled.

Remove allocatedSymbols memory optimisation, we no longer keep all the
symbol strings in heap memory. Remove LabelValuesFor and LabelIndices,
they're dead code. Ensure we've still tests for label indices,
and add missing test that we can work with old V1 Format index files.

PostingForMatchers performance is slightly better, with a big drop in
allocation counts due to using yoloString for LabelValues:

benchmark                                                               old ns/op     new ns/op     delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              36698         36681         -0.05%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      522786        560887        +7.29%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      511652        537680        +5.09%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     522102        564239        +8.07%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            113689911     111795919     -1.67%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            135825572     132871085     -2.18%
BenchmarkPostingsForMatchers/Block/i=~""-4                              40782628      38038181      -6.73%
BenchmarkPostingsForMatchers/Block/i!=""-4                              31267869      29194327      -6.63%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              112733329     111568823     -1.03%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       112868153     111232029     -1.45%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        31338257      29349446      -6.35%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                32054482      29972436      -6.50%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              136504654     133968442     -1.86%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             27960350      27264997      -2.49%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       136765564     133860724     -2.12%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     163714583     159453668     -2.60%

benchmark                                                               old allocs     new allocs     delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              6              6              +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      11             11             +0.00%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      11             11             +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     17             15             -11.76%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            100012         12             -99.99%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            200040         100040         -49.99%
BenchmarkPostingsForMatchers/Block/i=~""-4                              200045         100045         -49.99%
BenchmarkPostingsForMatchers/Block/i!=""-4                              200041         100041         -49.99%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              100017         17             -99.98%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       100023         23             -99.98%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        200046         100046         -49.99%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                200050         100050         -49.99%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              200049         100049         -49.99%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             111150         11150          -89.97%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       200055         100055         -49.99%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     311238         111238         -64.26%

benchmark                                                               old bytes     new bytes     delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              296           296           +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      424           424           +0.00%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      424           424           +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     552           1544          +179.71%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            1600482       1606125       +0.35%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            17259065      17264709      +0.03%
BenchmarkPostingsForMatchers/Block/i=~""-4                              17259150      17264780      +0.03%
BenchmarkPostingsForMatchers/Block/i!=""-4                              17259048      17264680      +0.03%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              1600610       1606242       +0.35%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       1600813       1606434       +0.35%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        17259176      17264808      +0.03%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                17259304      17264936      +0.03%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              17259333      17264965      +0.03%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             3142628       3148262       +0.18%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       17259509      17265141      +0.03%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     20405680      20416944      +0.06%

However overall Select performance is down and involves more allocs, due to
having to do more than a simple map lookup to resolve a symbol and that all the strings
returned are allocated:

benchmark                                           old ns/op     new ns/op      delta
BenchmarkQuerierSelect/Block/1of1000000-4           506092636     862678244      +70.46%
BenchmarkQuerierSelect/Block/10of1000000-4          505638968     860917636      +70.26%
BenchmarkQuerierSelect/Block/100of1000000-4         505229450     882150048      +74.60%
BenchmarkQuerierSelect/Block/1000of1000000-4        515905414     862241115      +67.13%
BenchmarkQuerierSelect/Block/10000of1000000-4       516785354     874841110      +69.29%
BenchmarkQuerierSelect/Block/100000of1000000-4      540742808     907030187      +67.74%
BenchmarkQuerierSelect/Block/1000000of1000000-4     815224288     1181236903     +44.90%

benchmark                                           old allocs     new allocs     delta
BenchmarkQuerierSelect/Block/1of1000000-4           4000020        6000020        +50.00%
BenchmarkQuerierSelect/Block/10of1000000-4          4000038        6000038        +50.00%
BenchmarkQuerierSelect/Block/100of1000000-4         4000218        6000218        +50.00%
BenchmarkQuerierSelect/Block/1000of1000000-4        4002018        6002018        +49.97%
BenchmarkQuerierSelect/Block/10000of1000000-4       4020018        6020018        +49.75%
BenchmarkQuerierSelect/Block/100000of1000000-4      4200018        6200018        +47.62%
BenchmarkQuerierSelect/Block/1000000of1000000-4     6000018        8000019        +33.33%

benchmark                                           old bytes     new bytes     delta
BenchmarkQuerierSelect/Block/1of1000000-4           176001468     227201476     +29.09%
BenchmarkQuerierSelect/Block/10of1000000-4          176002620     227202628     +29.09%
BenchmarkQuerierSelect/Block/100of1000000-4         176014140     227214148     +29.09%
BenchmarkQuerierSelect/Block/1000of1000000-4        176129340     227329348     +29.07%
BenchmarkQuerierSelect/Block/10000of1000000-4       177281340     228481348     +28.88%
BenchmarkQuerierSelect/Block/100000of1000000-4      188801340     240001348     +27.12%
BenchmarkQuerierSelect/Block/1000000of1000000-4     304001340     355201616     +16.84%

Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
 2019-12-17 18:56:58 +00:00
Brian Brazil 48d25e6fe7 Reduce memory used by postings offset table. 
Rather than keeping the offset of each postings list, instead
keep the nth offset of the offset of the posting list. As postings
list offsets have always been sorted, we can then get to the closest
entry before the one we want an iterate forwards.

I haven't done much tuning on the 32 number, it was chosen to try
not to read through more than a 4k page of data.

Switch to a bulk interface for fetching postings. Use it to avoid having
to re-read parts of the posting offset table when querying lots of it.

For a index with what BenchmarkHeadPostingForMatchers uses RAM
for r.postings drops from 3.79MB to 80.19kB or about 48x.
Bytes allocated go down by 30%, and suprisingly CPU usage drops by
4-6% for typical queries too.

benchmark                                                               old ns/op      new ns/op      delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              35231          36673          +4.09%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      563380         540627         -4.04%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      536782         534186         -0.48%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     533990         541550         +1.42%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            113374598      117969608      +4.05%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            146329884      139651442      -4.56%
BenchmarkPostingsForMatchers/Block/i=~""-4                              50346510       44961127       -10.70%
BenchmarkPostingsForMatchers/Block/i!=""-4                              41261550       35356165       -14.31%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              112544418      116904010      +3.87%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       112487086      116864918      +3.89%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        41094758       35457904       -13.72%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                41906372       36151473       -13.73%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              147262414      140424800      -4.64%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             28615629       27872072       -2.60%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       147117177      140462403      -4.52%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     175096826      167902298      -4.11%

benchmark                                                               old allocs     new allocs     delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              4              6              +50.00%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      7              11             +57.14%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      7              11             +57.14%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     15             17             +13.33%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            100010         100012         +0.00%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            200069         200040         -0.01%
BenchmarkPostingsForMatchers/Block/i=~""-4                              200072         200045         -0.01%
BenchmarkPostingsForMatchers/Block/i!=""-4                              200070         200041         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              100013         100017         +0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       100017         100023         +0.01%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        200073         200046         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                200075         200050         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              200074         200049         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             111165         111150         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       200078         200055         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     311282         311238         -0.01%

benchmark                                                               old bytes     new bytes     delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              264           296           +12.12%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      360           424           +17.78%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      360           424           +17.78%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     520           552           +6.15%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            1600461       1600482       +0.00%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            24900801      17259077      -30.69%
BenchmarkPostingsForMatchers/Block/i=~""-4                              24900836      17259151      -30.69%
BenchmarkPostingsForMatchers/Block/i!=""-4                              24900760      17259048      -30.69%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              1600557       1600621       +0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       1600717       1600813       +0.01%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        24900856      17259176      -30.69%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                24900952      17259304      -30.69%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              24900993      17259333      -30.69%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             3788311       3142630       -17.04%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       24901137      17259509      -30.69%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     28693086      20405680      -28.88%

Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
 2019-12-11 19:59:31 +00:00
Tom Wilkie de0a772b8e Port tsdb to use pkg/labels. (#6326) 
* Port tsdb to use pkg/labels.

Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>

* Get tests passing.

Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>

* Remove useless cast.

Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>

* Appease linters.

Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>

* Fix review comments

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
 2019-11-18 11:53:33 -08:00
naivewong 23c0299d85 [tsdb] Improve mergeSeriesSet (#5920) 
* refactor and simplify mergeSeriesSet

Signed-off-by: naivewong <867245430@qq.com>
 2019-11-15 21:45:29 +07:00
Callum Styan 3344bb5c33 Move WAL watcher code to tsdb/wal package. (#5999) 
* Move WAL watcher code to tsdb/wal package.

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* Fix tests after moving WAL watcher code.

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* Lint fixes.

Signed-off-by: Callum Styan <callumstyan@gmail.com>
 2019-09-19 14:45:41 +05:30
陈谭军 50d453b3c3 fix-up tsdb-typo (#5954) 
Signed-off-by: chentanjun <2799194073@qq.com>
 2019-08-28 14:43:02 +01:00
Bartek Plotka f0863a604e Removed extra tsdb/testutil after merge. 
Signed-off-by: Bartek Plotka <bwplotka@gmail.com>
 2019-08-14 10:12:32 +01:00
Ganesh Vernekar 5ecef3542d
Cleanup after merging tsdb into prometheus 
Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
 2019-08-13 14:04:14 +05:30
Ganesh Vernekar 7cf09b0395
Moving tsdb into its own subdirectory 
Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
 2019-08-13 13:58:49 +05:30