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11 Commits (f4ff26f5774f2bc4c6ec1eb981739fb3218152ff)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Brad Fitzpatrick
|
35bee36549 |
portlist: use win32 calls instead of running netstat process [windows]
Turns out using win32 instead of shelling out to child processes is a
bit faster:
name old time/op new time/op delta
GetListIncremental-4 278ms ± 2% 0ms ± 7% -99.93% (p=0.000 n=8+10)
name old alloc/op new alloc/op delta
GetListIncremental-4 238kB ± 0% 9kB ± 0% -96.12% (p=0.000 n=10+8)
name old allocs/op new allocs/op delta
GetListIncremental-4 1.19k ± 0% 0.02k ± 0% -98.49% (p=0.000 n=10+10)
Fixes #3876 (sadly)
Change-Id: I1195ac5de21a8a8b3cdace5871d263e81aa27e91
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
|
2 years ago |
|
Brad Fitzpatrick
|
46ce80758d |
portlist: update some internals to use append-style APIs
In prep for reducing garbage, being able to reuse memory. So far this
doesn't actually reuse much. This is just changing signatures around.
But some improvement in any case:
bradfitz@tsdev:~/src/tailscale.com$ ~/go/bin/benchstat before after
name old time/op new time/op delta
GetList-8 11.8ms ± 9% 9.9ms ± 3% -15.98% (p=0.000 n=10+10)
name old alloc/op new alloc/op delta
GetList-8 99.5kB ± 2% 91.9kB ± 0% -7.62% (p=0.000 n=9+9)
name old allocs/op new allocs/op delta
GetList-8 3.05k ± 1% 2.93k ± 0% -3.83% (p=0.000 n=8+9)
More later, once parsers can reuse strings from previous parses.
Updates #5958
Change-Id: I76cd5048246dd24d11c4e263d8bb8041747fb2b0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
|
2 years ago |
|
David Crawshaw
|
297b3d6fa4 |
staticcheck.conf: turn off noisy lint errors
Signed-off-by: David Crawshaw <crawshaw@tailscale.com> |
3 years ago |
|
Josh Bleecher Snyder
|
bfd2b71926 |
portlist: suppress staticcheck error
Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com> |
4 years ago |
|
Brad Fitzpatrick
|
c0befee188 |
portlist: use windows OpenCurrentProcessToken, not GetCurrentProcessToken
The latter only works on Windows 8+. Also add a TODO to get do this all more efficiently. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> |
4 years ago |
|
Brad Fitzpatrick
|
8f76548fd9 |
tempfork/osexec: remove old fork of os/exec
This package was a temporary fork of os/exec to fix an EINTR loop bug that was fixed upstream for Go 1.15 in |
4 years ago |
|
Brad Fitzpatrick
|
4a92fc9dc5 |
portlist: fix tests on Windows when not running as Administrator
Updates #50 |
4 years ago |
|
Brad Fitzpatrick
|
2ca2389c5f |
portlist: set SysProcAttr.HideWindow on Windows
Prevents annoying shell window flashes when running /server by hand. |
5 years ago |
|
David Anderson
|
9396024bd7 | portlist: move code around to avoid unused function warnings. | 5 years ago |
|
Brad Fitzpatrick
|
120273d7f6 |
portlist: document, clean up, fix an open fd spike, optimize a bit
I noticed portlist when looking at some profiles and hadn't looked at the code much before. This is a first pass over it. It allocates a fair bit. More love remains, but this does a bit: name old time/op new time/op delta GetList-8 9.92ms ± 8% 9.64ms ±12% ~ (p=0.247 n=10+10) name old alloc/op new alloc/op delta GetList-8 931kB ± 0% 869kB ± 0% -6.70% (p=0.000 n=10+10) name old allocs/op new allocs/op delta GetList-8 4.59k ± 0% 3.69k ± 1% -19.71% (p=0.000 n=10+10) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> |
5 years ago |
|
Earl Lee
|
a8d8b8719a | Move Linux client & common packages into a public repo. | 5 years ago |