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9cb332f0e2
Uses the hooks added by tailscale/go#45 to instrument the reads and writes on the major code paths that do network I/O in the client. The convention is to use "<package>.<type>:<label>" as the annotation for the responsible code path. Enabled on iOS, macOS and Android only, since mobile platforms are the ones we're most interested in, and we are less sensitive to any throughput degradation due to the per-I/O callback overhead (macOS is also enabled for ease of testing during development). For now just exposed as counters on a /v0/sockstats PeerAPI endpoint. We also keep track of the current interface so that we can break out the stats by interface. Updates tailscale/corp#9230 Updates #3363 Signed-off-by: Mihai Parparita <mihai@tailscale.com>
40 lines
873 B
Go
40 lines
873 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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// Package sockstats collects statistics about network sockets used by
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// the Tailscale client. The context where sockets are used must be
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// instrumented with the WithSockStats() function.
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//
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// Only available on POSIX platforms when built with Tailscale's fork of Go.
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package sockstats
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import (
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"context"
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"tailscale.com/wgengine/monitor"
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)
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type SockStats struct {
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Stats map[string]SockStat
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Interfaces []string
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}
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type SockStat struct {
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TxBytes int64
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RxBytes int64
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TxBytesByInterface map[string]int64
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RxBytesByInterface map[string]int64
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}
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func WithSockStats(ctx context.Context, label string) context.Context {
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return withSockStats(ctx, label)
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}
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func Get() *SockStats {
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return get()
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}
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func SetLinkMonitor(lm *monitor.Mon) {
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setLinkMonitor(lm)
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}
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