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sockstats: instrument networking code paths

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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>
This commit is contained in:
Mihai Parparita
2023-02-03 12:07:58 -08:00
committed by Mihai Parparita
parent 0c1510739c
commit 9cb332f0e2
17 changed files with 326 additions and 5 deletions
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6
cmd/derper/depaware.txt
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@@ -12,7 +12,7 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
github.com/golang/groupcache/lru from tailscale.com/net/dnscache
github.com/hdevalence/ed25519consensus from tailscale.com/tka
L github.com/josharian/native from github.com/mdlayher/netlink+
L 💣 github.com/jsimonetti/rtnetlink from tailscale.com/net/interfaces
L 💣 github.com/jsimonetti/rtnetlink from tailscale.com/net/interfaces+
L github.com/jsimonetti/rtnetlink/internal/unix from github.com/jsimonetti/rtnetlink
github.com/klauspost/compress/flate from nhooyr.io/websocket
L 💣 github.com/mdlayher/netlink from github.com/jsimonetti/rtnetlink+
@@ -47,6 +47,7 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
tailscale.com/net/netns from tailscale.com/derp/derphttp
tailscale.com/net/netutil from tailscale.com/client/tailscale
tailscale.com/net/packet from tailscale.com/wgengine/filter
tailscale.com/net/sockstats from tailscale.com/derp/derphttp
tailscale.com/net/stun from tailscale.com/cmd/derper
tailscale.com/net/tlsdial from tailscale.com/derp/derphttp
tailscale.com/net/tsaddr from tailscale.com/ipn+
@@ -84,13 +85,14 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
tailscale.com/util/lineread from tailscale.com/hostinfo+
tailscale.com/util/mak from tailscale.com/syncs+
tailscale.com/util/multierr from tailscale.com/health
tailscale.com/util/set from tailscale.com/health
tailscale.com/util/set from tailscale.com/health+
tailscale.com/util/singleflight from tailscale.com/net/dnscache
tailscale.com/util/vizerror from tailscale.com/tsweb
W 💣 tailscale.com/util/winutil from tailscale.com/hostinfo+
tailscale.com/version from tailscale.com/derp+
tailscale.com/version/distro from tailscale.com/hostinfo+
tailscale.com/wgengine/filter from tailscale.com/types/netmap
tailscale.com/wgengine/monitor from tailscale.com/net/sockstats
golang.org/x/crypto/acme from golang.org/x/crypto/acme/autocert
golang.org/x/crypto/acme/autocert from tailscale.com/cmd/derper
golang.org/x/crypto/argon2 from tailscale.com/tka

4
cmd/tailscale/depaware.txt
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@@ -13,7 +13,7 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
github.com/google/uuid from tailscale.com/util/quarantine+
github.com/hdevalence/ed25519consensus from tailscale.com/tka
L github.com/josharian/native from github.com/mdlayher/netlink+
L 💣 github.com/jsimonetti/rtnetlink from tailscale.com/net/interfaces
L 💣 github.com/jsimonetti/rtnetlink from tailscale.com/net/interfaces+
L github.com/jsimonetti/rtnetlink/internal/unix from github.com/jsimonetti/rtnetlink
github.com/kballard/go-shellquote from tailscale.com/cmd/tailscale/cli
github.com/klauspost/compress/flate from nhooyr.io/websocket
@@ -79,6 +79,7 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
tailscale.com/net/packet from tailscale.com/wgengine/filter
tailscale.com/net/ping from tailscale.com/net/netcheck
tailscale.com/net/portmapper from tailscale.com/net/netcheck+
tailscale.com/net/sockstats from tailscale.com/control/controlhttp+
tailscale.com/net/stun from tailscale.com/net/netcheck
tailscale.com/net/tlsdial from tailscale.com/derp/derphttp+
tailscale.com/net/tsaddr from tailscale.com/net/interfaces+
@@ -126,6 +127,7 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
tailscale.com/version/distro from tailscale.com/cmd/tailscale/cli+
tailscale.com/wgengine/capture from tailscale.com/cmd/tailscale/cli
tailscale.com/wgengine/filter from tailscale.com/types/netmap
tailscale.com/wgengine/monitor from tailscale.com/net/sockstats
golang.org/x/crypto/argon2 from tailscale.com/tka
golang.org/x/crypto/blake2b from golang.org/x/crypto/nacl/box+
golang.org/x/crypto/blake2s from tailscale.com/control/controlbase+

1
cmd/tailscaled/depaware.txt
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@@ -246,6 +246,7 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
tailscale.com/net/proxymux from tailscale.com/cmd/tailscaled
tailscale.com/net/routetable from tailscale.com/doctor/routetable
tailscale.com/net/socks5 from tailscale.com/cmd/tailscaled
tailscale.com/net/sockstats from tailscale.com/control/controlclient+
tailscale.com/net/stun from tailscale.com/net/netcheck+
tailscale.com/net/tlsdial from tailscale.com/control/controlclient+
tailscale.com/net/tsaddr from tailscale.com/ipn+