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tailscale/util
Joe Tsai 77a92f326d
util/deephash: avoid using sync.Pool for reflect.MapIter (#5333)
In Go 1.19, the reflect.Value.MapRange method uses "function outlining"
so that the allocation of reflect.MapIter is inlinable by the caller.
If the iterator doesn't escape the caller, it can be stack allocated.
See https://go.dev/cl/400675

Performance:

	name               old time/op    new time/op    delta
	HashMapAcyclic-24    31.9µs ± 2%    32.1µs ± 1%   ~     (p=0.075 n=10+10)

	name               old alloc/op   new alloc/op   delta
	HashMapAcyclic-24     0.00B          0.00B        ~     (all equal)

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
..
cibuild all: use cibuild.On 3 years ago
clientmetric all: gofmt for Go 1.19 2 years ago
cloudenv all: use syncs.AtomicValue 2 years ago
cmpver util/cmpver: move into OSS from corp repo. 3 years ago
codegen all: convert more code to use net/netip directly 2 years ago
deephash util/deephash: avoid using sync.Pool for reflect.MapIter (#5333) 2 years ago
dnsname all: use Go 1.18's strings.Cut 3 years ago
endian all: gofmt with Go 1.17 3 years ago
groupmember util/groupmember: remove redundant code (#4298) 3 years ago
jsonutil all: use any instead of interface{} 3 years ago
lineread util/lineread: add docs to Reader 4 years ago
mak util/mak: move tailssh's mapSet into a new package for reuse elsewhere 2 years ago
multierr all: gofmt for Go 1.19 2 years ago
must util/must: rename Do->Get, add Do 2 years ago
osshare all: gofmt with Go 1.17 3 years ago
pidowner all: gofmt with Go 1.17 3 years ago
precompress cmd/tsconnect,util/precompress: move precompression to its own package 2 years ago
racebuild all: gofmt with Go 1.17 3 years ago
sha256x util/sha256x: make Hash.Sum non-escaping (#5338) 2 years ago
singleflight all: gofmt for Go 1.19 2 years ago
strs util/strs: add new package for string utility funcs 2 years ago
systemd all: gofmt for Go 1.19 2 years ago
uniq all: use any instead of interface{} 3 years ago
winutil net/dns, paths, util/winutil: change net/dns/windowsManager NRPT management to support more than 50 domains. 2 years ago