mirror of
https://github.com/soypat/lneto.git
synced 2026-08-04 15:07:52 +00:00
Pat Whittingslow
989bb6a0b9
* reduce heap allocations in tcp logging; omit use of AppendFloat which allocates a metric sh*tton * debugheaplog: better heap statistic logging * heap: use string for pcap.Frame.Protocol * add potential to eliminate Flags.String heap alloc, remove incorrect HEAP comments * add StackAsync.DebugErr and httpraw.SetBytes * many heap alloc reductions and replacement of bytes.Equal with internal.BytesEqual
61 lines
1.2 KiB
Go
61 lines
1.2 KiB
Go
//go:build debugheaplog
|
|
|
|
package internal
|
|
|
|
import (
|
|
"log/slog"
|
|
"runtime"
|
|
"time"
|
|
"unsafe"
|
|
)
|
|
|
|
const (
|
|
HeapAllocDebugging = true
|
|
timefmt = "[01-02 15:04:05.000]"
|
|
)
|
|
|
|
var (
|
|
timebuf [len(timefmt) * 2]byte
|
|
)
|
|
|
|
func LogEnabled(l *slog.Logger, lvl slog.Level) bool {
|
|
return true
|
|
}
|
|
|
|
func LogAttrs(_ *slog.Logger, level slog.Level, msg string, attrs ...slog.Attr) {
|
|
now := time.Now()
|
|
n := len(now.AppendFormat(timebuf[:0], timefmt))
|
|
LogAllocs(msg)
|
|
print("time=", unsafe.String(&timebuf[0], n), " ")
|
|
if level == LevelTrace {
|
|
print("TRACE ")
|
|
} else if level < slog.LevelDebug {
|
|
print("SEQS ")
|
|
} else {
|
|
print(level.String(), " ")
|
|
}
|
|
print(msg)
|
|
|
|
for _, a := range attrs {
|
|
switch a.Value.Kind() {
|
|
case slog.KindString:
|
|
print(" ", a.Key, "=", a.Value.String())
|
|
case slog.KindInt64:
|
|
print(" ", a.Key, "=", a.Value.Int64())
|
|
case slog.KindUint64:
|
|
print(" ", a.Key, "=", a.Value.Uint64())
|
|
case slog.KindBool:
|
|
print(" ", a.Key, "=", a.Value.Bool())
|
|
}
|
|
}
|
|
println()
|
|
allocmu.Lock()
|
|
runtime.ReadMemStats(&memstats)
|
|
if lastAllocs != memstats.TotalAlloc {
|
|
print("alloc increase in heaplog")
|
|
}
|
|
lastAllocs = memstats.TotalAlloc
|
|
lastMallocs = memstats.Mallocs
|
|
allocmu.Unlock()
|
|
}
|