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From: Heiko.Haase@rohde-schwarz.com
To: users@dpdk.org
Subject: [dpdk-users] i40e XL710 VF low latency reception and interrupt throttling
Date: Wed, 22 Nov 2017 12:34:52 +0100	[thread overview]
Message-ID: <OFD9ABC848.5FA8BA7E-ONC12581E0.003F59C6-C12581E0.003F9E48@rohde-schwarz.com> (raw)

Hi, 

I am trying to receive packets as fast as possible with DPDK PMD. 
Sometimes packets arrive within a few microseconds , which is fine, 
sometimes packets arrive only after approx. 8 milliseconds. This seems to 
be due to interrupt throttling configured in the VF driver. Does anyone 
know a way to configure the interrupt throttling or how to turn it off. 

My setup: Intel XL710 NIC, i40e pmd driver, DPDK uses VF, PF is mapped to 
Linux kernel. DPDK 17.11


Thanks
Heiko

                 reply	other threads:[~2017-11-22 11:34 UTC|newest]

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