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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.

Signed-off-by: Jordan Whited <jordan@tailscale.com>
This commit is contained in:
Jordan Whited 2023-04-05 15:40:40 -07:00 • committed by James Tucker
parent ceb9a09d03
commit cc7b29b8c6
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6 changed files with 123 additions and 113 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 {