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reduce allocations (also pulls in updated ironwood to do the same)

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This commit is contained in:
Arceliar 2023-05-21 12:38:16 -05:00
parent 52709696a5
commit 8b5add5301
4 changed files with 24 additions and 5 deletions
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2
go.mod
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@ -3,7 +3,7 @@ module github.com/yggdrasil-network/yggdrasil-go
go 1.19 go 1.19
require ( require (
github.com/Arceliar/ironwood v0.0.0-20230515022317-31b976732ebe github.com/Arceliar/ironwood v0.0.0-20230521173602-97ee6b09b8e0
github.com/Arceliar/phony v0.0.0-20220903101357-530938a4b13d github.com/Arceliar/phony v0.0.0-20220903101357-530938a4b13d
github.com/cheggaaa/pb/v3 v3.0.8 github.com/cheggaaa/pb/v3 v3.0.8
github.com/gologme/log v1.2.0 github.com/gologme/log v1.2.0

4
go.sum
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@ -1,5 +1,5 @@
github.com/Arceliar/ironwood v0.0.0-20230515022317-31b976732ebe h1:u69sr6Y9jqu6sk43Yyt+izLnLGgqCw3OYh2HU+jYUBw= github.com/Arceliar/ironwood v0.0.0-20230521173602-97ee6b09b8e0 h1:u0BeMjhq0+jU+zaL6zlaBo9Z5KuG26bMtm+XM2e6dSQ=
github.com/Arceliar/ironwood v0.0.0-20230515022317-31b976732ebe/go.mod h1:MIfrhR4b+U6gurd5pln622Zwaf2kzpIvXcnvRZMvlRI= github.com/Arceliar/ironwood v0.0.0-20230521173602-97ee6b09b8e0/go.mod h1:5x7fWW0mshe9WQ1lvSMmmHBYC3BeHH9gpwW5tz7cbfw=
github.com/Arceliar/phony v0.0.0-20220903101357-530938a4b13d h1:UK9fsWbWqwIQkMCz1CP+v5pGbsGoWAw6g4AyvMpm1EM= github.com/Arceliar/phony v0.0.0-20220903101357-530938a4b13d h1:UK9fsWbWqwIQkMCz1CP+v5pGbsGoWAw6g4AyvMpm1EM=
github.com/Arceliar/phony v0.0.0-20220903101357-530938a4b13d/go.mod h1:BCnxhRf47C/dy/e/D2pmB8NkB3dQVIrkD98b220rx5Q= github.com/Arceliar/phony v0.0.0-20220903101357-530938a4b13d/go.mod h1:BCnxhRf47C/dy/e/D2pmB8NkB3dQVIrkD98b220rx5Q=
github.com/VividCortex/ewma v1.1.1/go.mod h1:2Tkkvm3sRDVXaiyucHiACn4cqf7DpdyLvmxzcbUokwA= github.com/VividCortex/ewma v1.1.1/go.mod h1:2Tkkvm3sRDVXaiyucHiACn4cqf7DpdyLvmxzcbUokwA=

6
src/core/core.go
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@ -183,7 +183,8 @@ func (c *Core) MTU() uint64 {
} }
func (c *Core) ReadFrom(p []byte) (n int, from net.Addr, err error) { func (c *Core) ReadFrom(p []byte) (n int, from net.Addr, err error) {
buf := make([]byte, c.PacketConn.MTU()) buf := allocBytes(int(c.PacketConn.MTU()))
defer freeBytes(buf)
for { for {
bs := buf bs := buf
n, from, err = c.PacketConn.ReadFrom(bs) n, from, err = c.PacketConn.ReadFrom(bs)
@ -217,7 +218,8 @@ func (c *Core) ReadFrom(p []byte) (n int, from net.Addr, err error) {
} }
func (c *Core) WriteTo(p []byte, addr net.Addr) (n int, err error) { func (c *Core) WriteTo(p []byte, addr net.Addr) (n int, err error) {
buf := make([]byte, 0, 65535) buf := allocBytes(0)
defer freeBytes(buf)
buf = append(buf, typeSessionTraffic) buf = append(buf, typeSessionTraffic)
buf = append(buf, p...) buf = append(buf, p...)
n, err = c.PacketConn.WriteTo(buf, addr) n, err = c.PacketConn.WriteTo(buf, addr)

17
src/core/pool.go Normal file
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@ -0,0 +1,17 @@
package core
import "sync"
var bytePool = sync.Pool{New: func() interface{} { return []byte(nil) }}
func allocBytes(size int) []byte {
bs := bytePool.Get().([]byte)
if cap(bs) < size {
bs = make([]byte, size)
}
return bs[:size]
}
func freeBytes(bs []byte) {
bytePool.Put(bs[:0])
}