groupcache: enable H2C + add benchmarks #5068
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Add h2c benchmarks. Somehow h2c is slowed than regular HTTP locally for me. Probably because these aren't real life benchmarks i.e. establishing TCP connections locally has no cost. And if there is only one operation happening at any time then h2 has to do more work hence more CPU usage. With 500 parallel requests going on at the same time, h2 becomes faster than (or is at the same level as) h1 while using a minimal number of TCP connections. Thus, it will work much faster in real life situations. So, let's enable it. ``` name time/op GroupcacheRetrieval/h2c/seq-16 227µs ± 1% GroupcacheRetrieval/h2c/parallel=500-16 54.8µs ±20% GroupcacheRetrieval/h1,_max_one_TCP_connection/seq-16 150µs ± 2% GroupcacheRetrieval/h1,_max_one_TCP_connection/parallel=500-16 146µs ± 1% GroupcacheRetrieval/h1,_unlimited_TCP_connections/seq-16 145µs ± 3% GroupcacheRetrieval/h1,_unlimited_TCP_connections/parallel=500-16 52.8µs ± 9% name alloc/op GroupcacheRetrieval/h2c/seq-16 183kB ± 0% GroupcacheRetrieval/h2c/parallel=500-16 143kB ± 1% GroupcacheRetrieval/h1,_max_one_TCP_connection/seq-16 161kB ± 0% GroupcacheRetrieval/h1,_max_one_TCP_connection/parallel=500-16 162kB ± 0% GroupcacheRetrieval/h1,_unlimited_TCP_connections/seq-16 161kB ± 0% GroupcacheRetrieval/h1,_unlimited_TCP_connections/parallel=500-16 116kB ± 2% name allocs/op GroupcacheRetrieval/h2c/seq-16 283 ± 0% GroupcacheRetrieval/h2c/parallel=500-16 256 ± 1% GroupcacheRetrieval/h1,_max_one_TCP_connection/seq-16 260 ± 0% GroupcacheRetrieval/h1,_max_one_TCP_connection/parallel=500-16 262 ± 0% GroupcacheRetrieval/h1,_unlimited_TCP_connections/seq-16 260 ± 0% GroupcacheRetrieval/h1,_unlimited_TCP_connections/parallel=500-16 279 ± 1% ``` Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>
GiedriusS
commented
Jan 18, 2022
| @@ -93,6 +96,12 @@ func NewGroupcacheWithConfig(logger log.Logger, reg prometheus.Registerer, conf | |||
| cfg *CachingBucketConfig) (*Groupcache, error) { | |||
| httpProto := galaxyhttp.NewHTTPFetchProtocol(&galaxyhttp.HTTPOptions{ | |||
| BasePath: basepath, | |||
| Transport: &http2.Transport{ | |||
| AllowHTTP: true, | |||
| DialTLS: func(network, addr string, cfg *tls.Config) (net.Conn, error) { | |||
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For now, let's disable TLS but in the future, we can come back to this.
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Shall we open an issue for it?
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I will add it to #5037
7 tasks
marijus-ravickas
previously approved these changes
Jan 18, 2022
kakkoyun
previously approved these changes
Jan 18, 2022
| @@ -93,6 +96,12 @@ func NewGroupcacheWithConfig(logger log.Logger, reg prometheus.Registerer, conf | |||
| cfg *CachingBucketConfig) (*Groupcache, error) { | |||
| httpProto := galaxyhttp.NewHTTPFetchProtocol(&galaxyhttp.HTTPOptions{ | |||
| BasePath: basepath, | |||
| Transport: &http2.Transport{ | |||
| AllowHTTP: true, | |||
| DialTLS: func(network, addr string, cfg *tls.Config) (net.Conn, error) { | |||
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Shall we open an issue for it?
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>
GiedriusS
dismissed stale reviews from kakkoyun and marijus-ravickas
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72f80bf
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reviewed
Jan 19, 2022
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|
||
| go func() { | ||
| if err = httpServer.ListenAndServe(); err != nil { | ||
| fmt.Printf("failed to listen: %s\n", err.Error()) |
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We should do an os.Exit(1) here as well. If we fail to start the http server, we should fail the test here instead of continuing with it.
| }() | ||
| go func() { | ||
| if err = httpServerH2C.ListenAndServe(); err != nil { | ||
| fmt.Printf("failed to listen: %s\n", err.Error()) |
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Add fixes according to the suggestions here thanos-io#5068 (comment). Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>
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Add fixes according to the suggestions here thanos-io#5068 (comment). Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>
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Add fixes according to the suggestions here #5068 (comment). Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>
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Add fixes according to the suggestions here thanos-io#5068 (comment). Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com> Signed-off-by: Nicholaswang <wzhever@gmail.com>
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Add h2c benchmarks. Somehow h2c is slower than regular HTTP locally for
me. Probably because these aren't real life benchmarks i.e. establishing
TCP connections locally have no cost. And if there is only one operation
happening at any time then h2 has to do more work hence more CPU usage.
With 500 parallel requests going on at the same time, h2 becomes faster
than (or is at the same level as) h1 while using a minimal number of TCP
connections. Thus, it will work much faster in real life situations. So,
let's enable it.
Signed-off-by: Giedrius Statkevičius giedrius.statkevicius@vinted.com