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c56625d597
The dynamic algorithm, while now working, doesn't have good performance in 40G mode. One part of this patch addresses the high CPU utilization of some small streaming workloads that the driver should reduce CPU in. It also changes the minimum ITR that the dynamic algorithm will settle on, causing our minimum latency to go from 12us to about 14us, when using adaptive mode. It also changes the BULK interrupt rate to allow maximum throughput on a 40Gb connection with a single thread of transmit, clamping interrupt rate to 8000 for TX makes single thread traffic go too slow. The new ULTRA bulk setting is introduced and is used when the Rx packet rate on this queue exceeds 40000 packets per second. This value of 40000 was chosen because the automatic tuning of minimum ITR=20us means that a single queue can't quite achieve that many packets per second from a round-robin test. Change-ID: Icce8faa128688ca5fd2c4229bdd9726877a92ea2 Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
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| .. | ||
| i40e_adminq_cmd.h | ||
| i40e_adminq.c | ||
| i40e_adminq.h | ||
| i40e_alloc.h | ||
| i40e_common.c | ||
| i40e_dcb_nl.c | ||
| i40e_dcb.c | ||
| i40e_dcb.h | ||
| i40e_debugfs.c | ||
| i40e_devids.h | ||
| i40e_diag.c | ||
| i40e_diag.h | ||
| i40e_ethtool.c | ||
| i40e_fcoe.c | ||
| i40e_fcoe.h | ||
| i40e_hmc.c | ||
| i40e_hmc.h | ||
| i40e_lan_hmc.c | ||
| i40e_lan_hmc.h | ||
| i40e_main.c | ||
| i40e_nvm.c | ||
| i40e_osdep.h | ||
| i40e_prototype.h | ||
| i40e_ptp.c | ||
| i40e_register.h | ||
| i40e_status.h | ||
| i40e_txrx.c | ||
| i40e_txrx.h | ||
| i40e_type.h | ||
| i40e_virtchnl_pf.c | ||
| i40e_virtchnl_pf.h | ||
| i40e_virtchnl.h | ||
| i40e.h | ||
| Makefile | ||