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device: move Queue{In,Out}boundElement Mutex to container type

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Queue{In,Out}boundElement locking can contribute to significant
overhead via sync.Mutex.lockSlow() in some environments. These types
are passed throughout the device package as elements in a slice, so
move the per-element Mutex to a container around the slice.

Reviewed-by: Maisem Ali <maisem@tailscale.com>
Signed-off-by: Jordan Whited <jordan@tailscale.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jordan Whited
2023-10-02 14:48:28 -07:00
committed by Jason A. Donenfeld
parent 8a015f7c76
commit 1ec454f253
6 changed files with 121 additions and 111 deletions
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10
device/device.go
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@@ -68,11 +68,11 @@ type Device struct {
cookieChecker CookieChecker
pool struct {
outboundElementsSlice *WaitPool
inboundElementsSlice *WaitPool
messageBuffers *WaitPool
inboundElements *WaitPool
outboundElements *WaitPool
inboundElementsContainer *WaitPool
outboundElementsContainer *WaitPool
messageBuffers *WaitPool
inboundElements *WaitPool
outboundElements *WaitPool
}
queue struct {