.\" generated with Ronn/v0.7.3 .\" http://github.com/rtomayko/ronn/tree/0.7.3 . .TH "COREDNS\-PPROF" "7" "March 2019" "CoreDNS" "CoreDNS plugins" . .SH "NAME" \fIpprof\fR \- publishes runtime profiling data at endpoints under \fB/debug/pprof\fR\. . .SH "DESCRIPTION" You can visit \fB/debug/pprof\fR on your site for an index of the available endpoints\. By default it will listen on localhost:6053\. . .P This is a debugging tool\. Certain requests (such as collecting execution traces) can be slow\. If you use pprof on a live server, consider restricting access or enabling it only temporarily\. . .P This plugin can only be used once per Server Block\. . .SH "SYNTAX" . .nf pprof [ADDRESS] . .fi . .P Optionally pprof takes an address; the default is \fBlocalhost:6053\fR\. . .P An extra option can be set with this extended syntax: . .IP "" 4 . .nf pprof [ADDRESS] { block [RATE] } . .fi . .IP "" 0 . .IP "\(bu" 4 \fBblock\fR option enables block profiling, \fBRATE\fR defaults to 1\. \fBRATE\fR must be a positive value\. See Diagnostics, chapter profiling \fIhttps://golang\.org/doc/diagnostics\.html\fR and runtime\.SetBlockProfileRate \fIhttps://golang\.org/pkg/runtime/#SetBlockProfileRate\fR for what block profiling entails\. . .IP "" 0 . .SH "EXAMPLES" Enable a pprof endpoint: . .IP "" 4 . .nf \&\. { pprof } . .fi . .IP "" 0 . .P And use the pprof tool to get statistics: \fBgo tool pprof http://localhost:6053\fR\. . .P Listen on an alternate address: . .IP "" 4 . .nf \&\. { pprof 10\.9\.8\.7:6060 } . .fi . .IP "" 0 . .P Listen on an all addresses on port 6060, and enable block profiling . .IP "" 4 . .nf \&\. { pprof :6060 { block } } . .fi . .IP "" 0 . .SH "ALSO SEE" See Go\'s pprof documentation \fIhttps://golang\.org/pkg/net/http/pprof/\fR and Profiling Go Programs \fIhttps://blog\.golang\.org/profiling\-go\-programs\fR\. . .P See runtime\.SetBlockProfileRate \fIhttps://golang\.org/pkg/runtime/#SetBlockProfileRate\fR for background on block profiling\.