From: Rick Jones <rick.jones2@hpe•com>
To: Tom Herbert <tom@herbertland•com>
Cc: Linux Kernel Network Developers <netdev@vger•kernel.org>
Subject: Re: Disabling XPS for 4.4.0-1+ixgbe+OpenStack VM over a VLAN means 65% increase in netperf TCP_STREAM
Date: Mon, 8 Feb 2016 11:03:30 -0800 [thread overview]
Message-ID: <56B8E682.5050606@hpe.com> (raw)
In-Reply-To: <56B8D877.5000402@hpe.com>
Shame on me for not including bare-iron TCP_RR:
stack@fcperf-cp1-comp0001-mgmt:~$ grep "1 1" xps_tcp_rr_on_* | awk
'{t+=$6;r+=$9;s+=$10}END{print "throughput",t/NR,"recv sd",r/NR,"send
sd",s/NR}'
throughput 18589.4 recv sd 21.6296 send sd 20.5931
stack@fcperf-cp1-comp0001-mgmt:~$ grep "1 1" xps_tcp_rr_off_* |
awk '{t+=$6;r+=$9;s+=$10}END{print "throughput",t/NR,"recv
sd",r/NR,"send sd",s/NR}'
throughput 20883.6 recv sd 19.6255 send sd 20.0178
So that is 12% on TCP_RR throughput.
Looks like XPS shouldn't be enabled by default for ixgbe.
happy benchmarking,
rick jones
prev parent reply other threads:[~2016-02-08 19:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-04 19:13 Disabling XPS for 4.4.0-1+ixgbe+OpenStack VM over a VLAN means 65% increase in netperf TCP_STREAM Rick Jones
2016-02-04 19:38 ` Tom Herbert
2016-02-04 19:57 ` Rick Jones
2016-02-04 20:13 ` Tom Herbert
2016-02-04 20:28 ` Rick Jones
2016-02-08 18:03 ` Rick Jones
2016-02-08 19:03 ` Rick Jones [this message]
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