tailscale

Commit Graph

Author	SHA1	Message	Date
Joe Tsai	c299a96624	all: apply consistent imports of "json" packages This runs: go run ./cmd/jsonimports -update -ignore=tempfork/ which applies the following rules: * Until the Go standard library formally accepts "encoding/json/v2" and "encoding/json/jsontext" into the standard library (i.e., they are no longer considered experimental), we forbid any code from directly importing those packages. Go code should instead import "github.com/go-json-experiment/json" and "github.com/go-json-experiment/json/jsontext". The latter packages contain aliases to the standard library if built on Go 1.25 with the goexperiment.jsonv2 tag specified. * Imports of "encoding/json" or "github.com/go-json-experiment/json/v1" must be explicitly imported under the package name "jsonv1". If both packages need to be imported, then the former should be imported under the package name "jsonv1std". * Imports of "github.com/go-json-experiment/json" must be explicitly imported under the package name "jsonv2". The latter two rules exist to provide clarity when reading code. Without them, it is unclear whether "json.Marshal" refers to v1 or v2. With them, however, it is clear that "jsonv1.Marshal" is calling v1 and that "jsonv2.Marshal" is calling v2. Updates tailscale/corp#791 Signed-off-by: Joe Tsai <joetsai@digital-static.net>	1 month ago
James Tucker	68b12a74ed	metrics,syncs: add ShardedInt support to metrics.LabelMap metrics.LabelMap grows slightly more heavy, needing a lock to ensure proper ordering for newly initialized ShardedInt values. An Add method enables callers to use .Add for both expvar.Int and syncs.ShardedInt values, but retains the original behavior of defaulting to initializing expvar.Int values. Updates tailscale/corp#25450 Co-Authored-By: Andrew Dunham <andrew@du.nham.ca> Signed-off-by: James Tucker <james@tailscale.com>	12 months ago
Andrew Dunham	717d589149	metrics: revert changes to MultiLabelMap's String method This breaks its ability to be used as an expvar and is blocking a trunkd deploy. Revert for now, and add a test to ensure that we don't break it in a future change. Updates #13550 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: I1f1221c257c1de47b4bff0597c12f8530736116d	1 year ago
Kristoffer Dalby	0e0e53d3b3	util/usermetrics: make usermetrics non-global this commit changes usermetrics to be non-global, this is a building block for correct metrics if a go process runs multiple tsnets or in tests. Updates #13420 Updates tailscale/corp#22075 Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>	1 year ago
Kristoffer Dalby	a2c42d3cd4	usermetric: add initial user-facing metrics This commit adds a new usermetric package and wires up metrics across the tailscale client. Updates tailscale/corp#22075 Co-authored-by: Anton Tolchanov <anton@tailscale.com> Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>	1 year ago
Brad Fitzpatrick	7c1d6e35a5	all: use Go 1.22 range-over-int Updates #11058 Change-Id: I35e7ef9b90e83cac04ca93fd964ad00ed5b48430 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	9699bb0a20	metrics: fix outdated docs on MultiLabelMap And make NewMultiLabelMap panic earlier (at construction time) if the comparable struct type T violates the documented rules, rather than panicking at Add time. Updates #cleanup Change-Id: Ib1a03babdd501b8d699c4f18b1097a56c916c6d5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	55baf9474f	metrics, tsweb/varz: add multi-label map metrics Updates tailscale/corp#18640 Change-Id: Ia9ae25956038e9d3266ea165537ac6f02485b74c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	18b2638b07	metrics: add missing comma in histogram JSON export Updates tailscale/corp#8641 Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Brad Fitzpatrick	e8551d6b40	all: use Go 1.21 slices, maps instead of x/exp/{slices,maps} Updates #8419 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	3304819739	metrics: add histogram support Add initial histogram support. Updates tailscale/corp#8641 Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Brad Fitzpatrick	4d94d72fba	metrics: add LabelMap.GetIncrFunc Updates tailscale/corp#7354 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	a7eab788e4	metrics: add SetInt64 to ease using LabelMap for gauge metrics Set is provided by the underlying Map. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Will Norris	71029cea2d	all: update copyright and license headers This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>	3 years ago
Brad Fitzpatrick	db2cc393af	util/dirwalk, metrics, portlist: add new package for fast directory walking This is similar to the golang.org/x/tools/internal/fastwalk I'd previously written but not recursive and using mem.RO. The metrics package already had some Linux-specific directory reading code in it. Move that out to a new general package that can be reused by portlist too, which helps its scanning of all /proc files: name old time/op new time/op delta FindProcessNames-8 2.79ms ± 6% 2.45ms ± 7% -12.11% (p=0.000 n=10+10) name old alloc/op new alloc/op delta FindProcessNames-8 62.9kB ± 0% 33.5kB ± 0% -46.76% (p=0.000 n=9+10) name old allocs/op new allocs/op delta FindProcessNames-8 2.25k ± 0% 0.38k ± 0% -82.98% (p=0.000 n=9+10) Change-Id: I75db393032c328f12d95c39f71c9742c375f207a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	da8def8e13	all: remove old +build tags The //go:build syntax was introduced in Go 1.17: https://go.dev/doc/go1.17#build-lines gofmt has kept the +build and go:build lines in sync since then, but enough time has passed. Time to remove them. Done with: perl -i -npe 's,^// \+build.*\n,,' $(git grep -l -F '+build') Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	94fb42d4b2	all: use testingutil.MinAllocsPerRun There are a few remaining uses of testing.AllocsPerRun: Two in which we only log the number of allocations, and one in which dynamically calculate the allocations target based on a different AllocsPerRun run. This also allows us to tighten the "no allocs" test in wgengine/filter. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	d1cb7a2639	metrics: use SYS_OPENAT New systems like arm64 don't even have SYS_OPEN.	4 years ago
Brad Fitzpatrick	99a1c74a6a	metrics: optimize CurrentFDs to not allocate on Linux It was 50% of our allocs on one of our servers. (!!) Updates #2784 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	fc160f80ee	metrics: move currentFDs code to the metrics package Updates #2784 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	f267a7396f	metrics: add LabelMap.GetFloat	5 years ago
David Anderson	f192c05413	metrics: add a LabelMap type for variables with 1 label dimension. This lets us publish sets of vars that are breakdowns along one dimension in a format that Prometheus and Grafana natively know how to do useful things with. Signed-off-by: David Anderson <dave@natulte.net>	6 years ago
Brad Fitzpatrick	e371520cc5	tsweb, derp: add expvar http.Handler for Prometheus's format And add some opinions. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	6 years ago

23 Commits (dsnet/jsonimports-ci)