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Improve go profiling APIs

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This commit is contained in:
Daniel 2023-09-05 12:51:05 +02:00
parent 82ed043721
commit 936e42b043
1 changed files with 22 additions and 0 deletions
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22
api/endpoints_debug.go
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@ -10,6 +10,7 @@ import (
"strings"
"time"
"github.com/safing/portbase/info"
"github.com/safing/portbase/utils/debug"
)
@ -46,6 +47,7 @@ func registerDebugEndpoints() error {
if err := RegisterEndpoint(Endpoint{
Path: "debug/cpu",
MimeType: "application/octet-stream",
Read: PermitAnyone,
DataFunc: handleCPUProfile,
Name: "Get CPU Profile",
@ -67,6 +69,7 @@ You can easily view this data in your browser with this command (with Go install
if err := RegisterEndpoint(Endpoint{
Path: "debug/heap",
MimeType: "application/octet-stream",
Read: PermitAnyone,
DataFunc: handleHeapProfile,
Name: "Get Heap Profile",
@ -81,6 +84,7 @@ You can easily view this data in your browser with this command (with Go install
if err := RegisterEndpoint(Endpoint{
Path: "debug/allocs",
MimeType: "application/octet-stream",
Read: PermitAnyone,
DataFunc: handleAllocsProfile,
Name: "Get Allocs Profile",
@ -154,6 +158,12 @@ func handleCPUProfile(ar *Request) (data []byte, err error) {
duration = parsedDuration
}
// Indicate download and filename.
ar.ResponseHeader.Set(
"Content-Disposition",
fmt.Sprintf(`attachment; filename="portmaster-cpu-profile_v%s.pprof"`, info.Version()),
)
// Start CPU profiling.
buf := new(bytes.Buffer)
if err := pprof.StartCPUProfile(buf); err != nil {
@ -175,6 +185,12 @@ func handleCPUProfile(ar *Request) (data []byte, err error) {
// handleHeapProfile returns the Heap profile.
func handleHeapProfile(ar *Request) (data []byte, err error) {
// Indicate download and filename.
ar.ResponseHeader.Set(
"Content-Disposition",
fmt.Sprintf(`attachment; filename="portmaster-memory-heap-profile_v%s.pprof"`, info.Version()),
)
buf := new(bytes.Buffer)
if err := pprof.Lookup("heap").WriteTo(buf, 0); err != nil {
return nil, fmt.Errorf("failed to write heap profile: %w", err)
@ -184,6 +200,12 @@ func handleHeapProfile(ar *Request) (data []byte, err error) {
// handleAllocsProfile returns the Allocs profile.
func handleAllocsProfile(ar *Request) (data []byte, err error) {
// Indicate download and filename.
ar.ResponseHeader.Set(
"Content-Disposition",
fmt.Sprintf(`attachment; filename="portmaster-memory-allocs-profile_v%s.pprof"`, info.Version()),
)
buf := new(bytes.Buffer)
if err := pprof.Lookup("allocs").WriteTo(buf, 0); err != nil {
return nil, fmt.Errorf("failed to write allocs profile: %w", err)