tailscale/wgengine
Mihai Parparita 9cb332f0e2 sockstats: instrument networking code paths
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>
2023-03-01 12:09:31 -08:00
..
bench all: update copyright and license headers 2023-01-27 15:36:29 -08:00
capture wgengine: start logging DISCO frames to pcap stream 2023-02-10 11:22:34 -10:00
filter all: update copyright and license headers 2023-01-27 15:36:29 -08:00
magicsock sockstats: instrument networking code paths 2023-03-01 12:09:31 -08:00
monitor all: update copyright and license headers 2023-01-27 15:36:29 -08:00
netlog all: replace logtail.{Public,Private}ID with logid.{Public,Private}ID (#7404) 2023-02-28 19:00:00 -08:00
netstack all: use Go 1.20's bytes.Clone 2023-02-01 17:39:18 -08:00
router all: update copyright and license headers 2023-01-27 15:36:29 -08:00
wgcfg all: replace logtail.{Public,Private}ID with logid.{Public,Private}ID (#7404) 2023-02-28 19:00:00 -08:00
wgint all: update copyright and license headers 2023-01-27 15:36:29 -08:00
wglog all: update copyright and license headers 2023-01-27 15:36:29 -08:00
winnet all: update copyright and license headers 2023-01-27 15:36:29 -08:00
mem_ios.go all: update copyright and license headers 2023-01-27 15:36:29 -08:00
pendopen.go all: update copyright and license headers 2023-01-27 15:36:29 -08:00
userspace_ext_test.go all: update copyright and license headers 2023-01-27 15:36:29 -08:00
userspace_test.go all: update copyright and license headers 2023-01-27 15:36:29 -08:00
userspace.go sockstats: instrument networking code paths 2023-03-01 12:09:31 -08:00
watchdog_js.go all: update copyright and license headers 2023-01-27 15:36:29 -08:00
watchdog_test.go all: update copyright and license headers 2023-01-27 15:36:29 -08:00
watchdog.go wgengine: start logging DISCO frames to pcap stream 2023-02-10 11:22:34 -10:00
wgengine.go wgengine: start logging DISCO frames to pcap stream 2023-02-10 11:22:34 -10:00