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Add a flag allowing contention profiling of the API server

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This commit is contained in:
gmarek 2016-11-14 17:38:26 +01:00
parent 984fb7112a
commit c97633b1f5
3 changed files with 16 additions and 4 deletions
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1
hack/verify-flags/known-flags.txt
View File

@ -106,6 +106,7 @@ container-port
container-runtime container-runtime
container-runtime-endpoint container-runtime-endpoint
contain-pod-resources contain-pod-resources
contention-profiling
controller-start-interval controller-start-interval
cors-allowed-origins cors-allowed-origins
cpu-cfs-quota cpu-cfs-quota

7
pkg/genericapiserver/config.go
View File

@ -24,6 +24,7 @@ import (
"os" "os"
"path" "path"
"regexp" "regexp"
goruntime "runtime"
"sort" "sort"
"strconv" "strconv"
"strings" "strings"
@ -80,6 +81,8 @@ type Config struct {
// allow downstream consumers to disable the index route // allow downstream consumers to disable the index route
EnableIndex bool EnableIndex bool
EnableProfiling bool EnableProfiling bool
// Requires generic profiling enabled
EnableContentionProfiling bool
EnableMetrics bool EnableMetrics bool
EnableGarbageCollection bool EnableGarbageCollection bool
@ -285,6 +288,7 @@ func (c *Config) ApplyOptions(options *options.ServerRunOptions) *Config {
c.CorsAllowedOriginList = options.CorsAllowedOriginList c.CorsAllowedOriginList = options.CorsAllowedOriginList
c.EnableGarbageCollection = options.EnableGarbageCollection c.EnableGarbageCollection = options.EnableGarbageCollection
c.EnableProfiling = options.EnableProfiling c.EnableProfiling = options.EnableProfiling
c.EnableContentionProfiling = options.EnableContentionProfiling
c.EnableSwaggerUI = options.EnableSwaggerUI c.EnableSwaggerUI = options.EnableSwaggerUI
c.ExternalAddress = options.ExternalHost c.ExternalAddress = options.ExternalHost
c.MaxRequestsInFlight = options.MaxRequestsInFlight c.MaxRequestsInFlight = options.MaxRequestsInFlight
@ -462,6 +466,9 @@ func (s *GenericAPIServer) installAPI(c *Config) {
} }
if c.EnableProfiling { if c.EnableProfiling {
routes.Profiling{}.Install(s.HandlerContainer) routes.Profiling{}.Install(s.HandlerContainer)
if c.EnableContentionProfiling {
goruntime.SetBlockProfileRate(1)
}
} }
if c.EnableMetrics { if c.EnableMetrics {
if c.EnableProfiling { if c.EnableProfiling {

4
pkg/genericapiserver/options/server_run_options.go
View File

@ -83,6 +83,7 @@ type ServerRunOptions struct {
AuditLogMaxSize int AuditLogMaxSize int
EnableGarbageCollection bool EnableGarbageCollection bool
EnableProfiling bool EnableProfiling bool
EnableContentionProfiling bool
EnableSwaggerUI bool EnableSwaggerUI bool
EnableWatchCache bool EnableWatchCache bool
EtcdServersOverrides []string EtcdServersOverrides []string
@ -139,6 +140,7 @@ func NewServerRunOptions() *ServerRunOptions {
DeleteCollectionWorkers: 1, DeleteCollectionWorkers: 1,
EnableGarbageCollection: true, EnableGarbageCollection: true,
EnableProfiling: true, EnableProfiling: true,
EnableContentionProfiling: false,
EnableWatchCache: true, EnableWatchCache: true,
InsecureBindAddress: net.ParseIP("127.0.0.1"), InsecureBindAddress: net.ParseIP("127.0.0.1"),
InsecurePort: 8080, InsecurePort: 8080,
@ -347,6 +349,8 @@ func (s *ServerRunOptions) AddUniversalFlags(fs *pflag.FlagSet) {
fs.BoolVar(&s.EnableProfiling, "profiling", s.EnableProfiling, fs.BoolVar(&s.EnableProfiling, "profiling", s.EnableProfiling,
"Enable profiling via web interface host:port/debug/pprof/") "Enable profiling via web interface host:port/debug/pprof/")
fs.BoolVar(&s.EnableContentionProfiling, "contention-profiling", s.EnableContentionProfiling,
"Enable contention profiling. Requires --profiling to be set to work.")
fs.BoolVar(&s.EnableSwaggerUI, "enable-swagger-ui", s.EnableSwaggerUI, fs.BoolVar(&s.EnableSwaggerUI, "enable-swagger-ui", s.EnableSwaggerUI,
"Enables swagger ui on the apiserver at /swagger-ui") "Enables swagger ui on the apiserver at /swagger-ui")