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prometheus/util
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Łukasz Mierzwa 5597020a60 Use github.com/klauspost/compress for gzip and zlib 
klauspost/compress is a high quality drop-in replacement for common Go
compression libraries. Since Prometheus sends out a lot of HTTP requests
that often return compressed output having improved compression
libraries helps to save cpu & memory resources.
On a test Prometheus server I was able to see cpu reduction from 31 to
30 cores.

Benchmark results:

name                                old time/op    new time/op    delta
TargetScraperGzip/metrics=1-8         69.4µs ± 4%    69.2µs ± 3%     ~     (p=0.122 n=50+50)
TargetScraperGzip/metrics=100-8       84.3µs ± 2%    80.9µs ± 2%   -4.02%  (p=0.000 n=48+46)
TargetScraperGzip/metrics=1000-8       296µs ± 1%     274µs ±14%   -7.35%  (p=0.000 n=47+45)
TargetScraperGzip/metrics=10000-8     2.06ms ± 1%    1.66ms ± 2%  -19.34%  (p=0.000 n=47+45)
TargetScraperGzip/metrics=100000-8    20.9ms ± 2%    17.5ms ± 3%  -16.50%  (p=0.000 n=49+50)

name                                old alloc/op   new alloc/op   delta
TargetScraperGzip/metrics=1-8         6.06kB ± 0%    6.07kB ± 0%   +0.24%  (p=0.000 n=48+48)
TargetScraperGzip/metrics=100-8       7.04kB ± 0%    6.89kB ± 0%   -2.17%  (p=0.000 n=49+50)
TargetScraperGzip/metrics=1000-8      9.02kB ± 0%    8.35kB ± 1%   -7.49%  (p=0.000 n=50+50)
TargetScraperGzip/metrics=10000-8     18.1kB ± 1%    16.1kB ± 2%  -10.87%  (p=0.000 n=47+47)
TargetScraperGzip/metrics=100000-8    1.21MB ± 0%    1.01MB ± 2%  -16.69%  (p=0.000 n=36+50)

name                                old allocs/op  new allocs/op  delta
TargetScraperGzip/metrics=1-8           71.0 ± 0%      72.0 ± 0%   +1.41%  (p=0.000 n=50+50)
TargetScraperGzip/metrics=100-8         81.0 ± 0%      76.0 ± 0%   -6.17%  (p=0.000 n=50+50)
TargetScraperGzip/metrics=1000-8        92.0 ± 0%      83.0 ± 0%   -9.78%  (p=0.000 n=50+50)
TargetScraperGzip/metrics=10000-8       93.0 ± 0%      91.0 ± 0%   -2.15%  (p=0.000 n=50+50)
TargetScraperGzip/metrics=100000-8       111 ± 0%       135 ± 1%  +21.89%  (p=0.000 n=40+50)

Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>
2024-02-22 17:08:15 +00:00
..
annotations Add warnings for histogramRate applied with isCounter not matching counter/gauge histogram (#13392) 2024-01-17 17:06:35 +01:00
documentcli promtool docs: write flags between backtits in help 2023-07-15 22:32:59 +02:00
fmtutil golangci-lint: enable testifylint linter (#13254) 2023-12-07 11:35:01 +00:00
gate Move packages out of deprecated pkg directory 2021-11-09 08:03:10 +01:00
httputil Use github.com/klauspost/compress for gzip and zlib 2024-02-22 17:08:15 +00:00
jsonutil Name float values as "floats", not as "values" 2023-04-13 19:25:24 +02:00
logging lint: Adjust to the lint warnings raised by current versions of golint-ci 2023-04-19 17:10:10 +02:00
osutil Format Go source files using 'gofumpt -w -s -extra' 2021-11-02 19:52:34 +01:00
pool Move packages out of deprecated pkg directory 2021-11-09 08:03:10 +01:00
runtime util/runtime: Ignore nolintlint failure on OSX (#13546) 2024-02-06 13:53:37 +01:00
runutil Append Created Timestamps (#12733) 2023-12-11 08:43:42 +00:00
stats Update exp package (#12650) 2023-09-21 22:53:51 +02:00
strutil Implement SanitizeLabelName and Full variant 2023-02-03 15:28:33 +00:00
teststorage Add a feature flag to control native histogram ingestion (#11253) 2022-09-14 17:38:34 +05:30
testutil utils: add DeepEqual replacement using go-cmp 2024-02-08 19:30:20 +00:00
treecache ci(lint): enable nolintlint and remove redundant comments (#12926) 2023-10-31 12:35:13 +01:00
zeropool golangci-lint: enable testifylint linter (#13254) 2023-12-07 11:35:01 +00:00