Yes, It wastes CPU cycles if there is other process running. However, as it
being a dedicated router, it should not be a problem. The process of packets
is the only task it is supposed to do.
Compared to NAPI, click polling will disable Nic interrupts during
its
operation, even there is
From: Qinghua(Kevin) Ye [EMAIL PROTECTED]
Date: Wed, 6 Jul 2005 11:36:40 -0600
Compared to NAPI, click polling will disable Nic interrupts during its
operation, even there is no any packets in the rx buffer.
This destroys latency if you only recheck the RX buffer using
timer
From: Qinghua(Kevin) Ye [EMAIL PROTECTED]
Date: Wed, 6 Jul 2005 14:12:29 -0600
Yes, you are right. Click acturally will release the CPU to OS at interval.
Other processes will be responded at this interval.
It is not Click's right to make this kind of decision, that is what
we have the process
In my SMP platform, there is no other processes running. The usage of
CPUs
are 100% and 0%. How could I make Nic interrupts not arrive at only one
CPU,
or balance the interrupt between two CPUs?
This doesn't work. If you try to split up the work for one network
card amongst multiple
From: Qinghua(Kevin) Ye [EMAIL PROTECTED]
Date: Tue, 5 Jul 2005 16:19:27 -0600
Compared to NAPI, click polling will disable Nic interrupts during its
operation, even there is no any packets in the rx buffer.
This destroys latency if you only recheck the RX buffer using
timer interrupts. Even
