mirror of
https://codeberg.org/scip/esctl.git
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56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
/*
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Copyright © 2026 Thomas von Dein
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package printer
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import (
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"fmt"
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"runtime/metrics"
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"strconv"
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)
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func printGoRoutineMetrics() {
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fmt.Println("\nGoroutine metrics:")
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printMetric("/sched/goroutines-created:goroutines", "Created")
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printMetric("/sched/goroutines:goroutines", "Live")
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printMetric("/sched/goroutines/not-in-go:goroutines", "Syscall/CGO")
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printMetric("/sched/goroutines/runnable:goroutines", "Runnable")
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printMetric("/sched/goroutines/running:goroutines", "Running")
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printMetric("/sched/goroutines/waiting:goroutines", "Waiting")
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fmt.Println("Thread metrics:")
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printMetric("/sched/gomaxprocs:threads", "Max")
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printMetric("/sched/threads/total:threads", "Live")
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}
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func printMetric(name string, descr string) {
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sample := []metrics.Sample{{Name: name}}
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metrics.Read(sample)
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var val string
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switch sample[0].Value.Kind() {
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case metrics.KindFloat64, metrics.KindFloat64Histogram:
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val = fmt.Sprintf("%.2f", sample[0].Value.Float64())
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case metrics.KindUint64:
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val = strconv.FormatUint(sample[0].Value.Uint64(), 10)
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case metrics.KindBad:
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val = "n/a"
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}
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fmt.Printf(" %s: %v\n", descr, val)
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}
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