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TUN vectorised reads/writes (#1145)

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This PR updates the Wireguard dependency and updates to use new
vectorised reads/writes, which should reduce the number of syscalls and
improve performance.

This will only make a difference on Linux as this is the only platform
for which the Wireguard TUN library supports vectorised reads/writes.
For other platforms, single reads and writes will be performed as usual.

---------

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This commit is contained in:
Neil 2024-07-20 15:24:30 +01:00 • committed by GitHub
parent 04c0acf71b
commit 02d92ff81c
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9 changed files with 92 additions and 24 deletions
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3
src/tun/tun_bsd.go
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@ -80,6 +80,9 @@ func (tun *TunAdapter) setup(ifname string, addr string, mtu uint64) error {
if err != nil {
return fmt.Errorf("failed to create TUN: %w", err)
}
if !waitForTUNUp(iface.Events()) {
return fmt.Errorf("TUN did not come up in time")
}
tun.iface = iface
if mtu, err := iface.MTU(); err == nil {
tun.mtu = getSupportedMTU(uint64(mtu))