Improve logql parser allocations. #2927
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Also moving labels parsing into logql package, and I'm not shy to say that promql is faster for this. So we're using promql for parser, it's faster because their lexer is more sophisticated than ours. Result are impressive. ``` ❯ benchcmp before.txt after.txt benchmark old ns/op new ns/op delta Benchmark_ParseLabels-16 24394 8745 -64.15% benchmark old allocs new allocs delta Benchmark_ParseLabels-16 156 20 -87.18% benchmark old bytes new bytes delta Benchmark_ParseLabels-16 24976 2099 -91.60% ``` Combined with grafana#2926, I think we should be able to get rid of `util.ToClientLabels`. But that's for another PR. Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com>
Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com>
Codecov Report
@@ Coverage Diff @@
## master #2927 +/- ##
==========================================
+ Coverage 61.72% 61.74% +0.01%
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Files 181 181
Lines 14724 14721 -3
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+ Hits 9089 9090 +1
+ Misses 4801 4799 -2
+ Partials 834 832 -2
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sandeepsukhani
approved these changes
Nov 13, 2020
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Also moving labels parsing into logql package, and I'm not shy to say that promql is faster for this.
So we're using promql for parser, it's faster because their lexer is more sophisticated than ours.
Result are impressive.
Combined with #2926, I think we should be able to get rid of
util.ToClientLabels. But that's for another PR.Signed-off-by: Cyril Tovena cyril.tovena@gmail.com