Displaying 2 results from an estimated 2 matches for "txirqs".
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2009 May 18
1
[RFC] virtio: orphan skbs if we're relying on timer to free them
...measurable with large numbers of packets.
There are a finite number of packets which can be in the transmission
queue. We could fire the timer more than every 100ms, but that would
just hurt performance for a corner case. This seems neatest.
With interrupt when Tx ring empty:
Seconds TxPkts TxIRQs
1G TCP Guest->Host: 3.76 32833 32758
1M normal pings: 111 1000008 997463
1M 1k pings (-l 120): 55 1000007 488920
Without interrupt, without orphaning:
1G TCP Guest->Host: 3.64 32806 1
1M normal pings: 106 1000008 1
1M 1k pings (-l 120): 68 1000005 1
With orphaning:
1G TCP Guest...
2009 May 18
1
[RFC] virtio: orphan skbs if we're relying on timer to free them
...measurable with large numbers of packets.
There are a finite number of packets which can be in the transmission
queue. We could fire the timer more than every 100ms, but that would
just hurt performance for a corner case. This seems neatest.
With interrupt when Tx ring empty:
Seconds TxPkts TxIRQs
1G TCP Guest->Host: 3.76 32833 32758
1M normal pings: 111 1000008 997463
1M 1k pings (-l 120): 55 1000007 488920
Without interrupt, without orphaning:
1G TCP Guest->Host: 3.64 32806 1
1M normal pings: 106 1000008 1
1M 1k pings (-l 120): 68 1000005 1
With orphaning:
1G TCP Guest...