d496687c8e
golangci-lint: enable usestdlibvars linter
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Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>
2024-04-08 19:26:23 +00:00
5597020a60
Use github.com/klauspost/compress for gzip and zlib
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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
d19fa62476
Revert "Improving Performance on the API Gzip Handler ( #12363 )"
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This reverts commit dfae954dc1
2023-06-20 13:39:32 +02:00
dfae954dc1
Improving Performance on the API Gzip Handler ( #12363 )
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Using github.com/klauspost/compress package to replace the current Gzip Handler on the API.
We see significant improvements using this handler over the current one as shown in the benchmark added.
Also:
* move selection of compression from `newCompressedResponseWriter` to `*CompressionHandler.ServeHTTP`.
* renaming `compressedResponseWriter` since it now only does one kind of compression.
Signed-off-by: Alan Protasio <alanprot@gmail.com>
2023-05-30 16:42:38 +01:00
e2ede285a2
refactor: move from io/ioutil to io and os packages ( #10528 )
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* refactor: move from io/ioutil to io and os packages
* use fs.DirEntry instead of os.FileInfo after os.ReadDir
Signed-off-by: MOREL Matthieu <matthieu.morel@cnp.fr>
2022-04-27 11:24:36 +02:00
f5563bfe95
tests: Move from t.Errorf and others. (Part 2) ( #9309 )
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* Refactor util tests.
Signed-off-by: Paweł Szulik <paul.szulik@gmail.com>
2021-09-13 21:19:20 +02:00
f678e27eb6
*: use latest release of staticcheck ( #5057 )
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* *: use latest release of staticcheck
It also fixes a couple of things in the code flagged by the additional
checks.
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* Use official release of staticcheck
Also run 'go list' before staticcheck to avoid failures when downloading packages.
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
2019-01-04 14:47:38 +01:00
a188693015
Adding unit tests for the util package ( #4534 )
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Signed-off-by: Tariq Ibrahim <tariq.ibrahim@microsoft.com>
2018-08-27 15:55:49 +01:00
Matthieu MOREL