From: Sergej Bauer <sbauer@blackbox.su>
To: thesven73@gmail.com
Cc: andrew@lunn.ch, Markus.Elfring@web.de, rtgbnm@gmail.com,
tharvey@gateworks.com, anders@ronningen.priv.no,
sbauer@blackbox.su,
Bryan Whitehead <bryan.whitehead@microchip.com>,
UNGLinuxDriver@microchip.com (maintainer:MICROCHIP LAN743X
ETHERNET DRIVER), "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org (open list:MICROCHIP LAN743X ETHERNET
DRIVER), linux-kernel@vger.kernel.org (open list)
Subject: Re: [PATCH net-next v1 1/6] lan743x: boost performance on cpu archs w/o dma cache snooping
Date: Fri, 5 Feb 2021 15:44:19 +0300 [thread overview]
Message-ID: <20210205124419.8575-1-sbauer@blackbox.su> (raw)
In-Reply-To: <20210129195240.31871-2-TheSven73@gmail.com>
Hi Sven
I can confirm great stability improvement after your patch
"lan743x: boost performance on cpu archs w/o dma cache snooping".
Please note, that test_ber opens raw sockets as
s = socket(AF_PACKET, SOCK_RAW, ETH_P_ALL)
and resulting 'average speed' is a average egress speed.
Test machine is Intel Pentium G4560 3.50GHz
lan743x with rejected virtual phy 'inside'
What I had before:
$ ifmtu eth7 500
$ test_ber -l eth7 -c 1000 -n 1000000 -f500 --no-conf
...
number of sent packets = 1000000
number of received packets = 289017
number of lost packets = 710983
number of out of order packets = 0
number of bit errors = 0
total errors detected = 710983
bit error rate = 0.710983
average speed: 429.3799 Mbit/s
$ ifmtu eth7 1500
$ sudo test_ber -l eth7 -c 1000 -n 1000000 -f1500 --no-conf
...
number of sent packets = 1000000
number of received packets = 577194
number of lost packets = 422806
number of out of order packets = 0
number of bit errors = 0
total errors detected = 422806
bit error rate = 0.422806
average speed: 644.6557 Mbit/s
---
and what I had after your patch:
$ ifmtu eth7 500
$ test_ber -l eth7 -c 1000 -n 1000000 -f500 --no-conf
...
number of sent packets = 1000000
number of received packets = 711329
number of lost packets = 288671
number of out of order packets = 0
number of bit errors = 0
total errors detected = 288671
bit error rate = 0.288671
average speed: 429.2263 Mbit/s
$ ifmtu eth7 1500
$ test_ber -l eth7 -c 1000 -n 1000000 -f1500 --no-conf
...
number of sent packets = 1000000
number of received packets = 1000000
number of lost packets = 0
number of out of order packets = 0
number of bit errors = 0
total errors detected = 0
bit error rate = 0
average speed: 644.5405 Mbit/s
next prev parent reply other threads:[~2021-02-05 12:49 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-29 19:52 [PATCH net-next v1 0/6] lan743x speed boost Sven Van Asbroeck
2021-01-29 19:52 ` [PATCH net-next v1 1/6] lan743x: boost performance on cpu archs w/o dma cache snooping Sven Van Asbroeck
2021-01-29 20:36 ` Andrew Lunn
2021-01-29 22:49 ` Sven Van Asbroeck
2021-01-29 22:01 ` Jakub Kicinski
2021-01-29 22:46 ` Sven Van Asbroeck
2021-01-30 22:10 ` Bryan.Whitehead
2021-01-30 23:59 ` Sven Van Asbroeck
2021-01-31 0:14 ` Sven Van Asbroeck
[not found] ` <20210204060210.2362-1-hdanton@sina.com>
2021-02-05 9:31 ` Christoph Hellwig
2021-02-05 14:01 ` Sven Van Asbroeck
2021-02-05 12:44 ` Sergej Bauer [this message]
2021-02-05 14:07 ` Sven Van Asbroeck
2021-02-05 15:09 ` Sergej Bauer
2021-02-05 16:39 ` Sven Van Asbroeck
2021-02-05 16:59 ` Sergej Bauer
2021-01-29 19:52 ` [PATCH net-next v1 2/6] lan743x: support rx multi-buffer packets Sven Van Asbroeck
2021-01-29 22:11 ` Willem de Bruijn
2021-01-29 23:02 ` Sven Van Asbroeck
2021-01-29 23:08 ` Willem de Bruijn
2021-01-29 23:10 ` Sven Van Asbroeck
2021-01-31 7:06 ` Bryan.Whitehead
2021-01-31 15:25 ` Sven Van Asbroeck
2021-02-01 18:04 ` Bryan.Whitehead
2021-02-03 18:53 ` Sven Van Asbroeck
2021-02-03 20:14 ` Bryan.Whitehead
2021-02-03 20:25 ` Sven Van Asbroeck
2021-02-03 20:41 ` Bryan.Whitehead
2021-01-29 19:52 ` [PATCH net-next v1 3/6] lan743x: allow mtu change while network interface is up Sven Van Asbroeck
2021-01-29 19:52 ` [PATCH net-next v1 4/6] TEST ONLY: lan743x: limit rx ring buffer size to 500 bytes Sven Van Asbroeck
2021-01-29 19:52 ` [PATCH net-next v1 5/6] TEST ONLY: lan743x: skb_alloc failure test Sven Van Asbroeck
2021-01-29 19:52 ` [PATCH net-next v1 6/6] TEST ONLY: lan743x: skb_trim " Sven Van Asbroeck
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