Hi,
In the transmit path, if enqueue mechanism is used instead of blocking on the
lock, the throughput is not good in some scenarios (especially single queue,
multiple connections).
For example:
if (TRY_LOCK(&wq->tx_lock)) {
status = oce_multiq_transmit(ifp, m, wq);
UNLOCK(&wq->tx_lock);
} else {
status = drbr_enqueue(ifp, wq->br, m);
}
Instead of the above code where the request is enqueued if I use a normal LOCK
and block on it, it is giving good performance.
Any suggestions on why the throughput is low in case of enqueue mechanism.
Thx,
Venkat.
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