Re: [PATCH net-next] ibmvnic: Toggle between queue types in affinity mapping
From: Jakub Kicinski <kuba@kernel.org>
Date: 2023-01-25 02:39:32
On Mon, 23 Jan 2023 16:17:27 -0600 Nick Child wrote:
A more optimal algorithm would balance the number RX and TX IRQ's across the physical cores. Therefore, to increase performance, distribute RX and TX IRQs across cores by alternating between assigning IRQs for RX and TX queues to CPUs. With a system with 64 CPUs and 32 queues, this results in the following pattern (binding is done in reverse order for readable code): IRQ type | CPU number ----------------------- TX15 | 0-1 RX15 | 2-3 TX14 | 4-5 RX14 | 6-7
Seems sensible but why did you invert the order? To save LoC?