From: Justin Piszcz <jpiszcz@lucidpixels.com>
To: linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: 2.6.38: rt2800usb: high latency (1000ms)?
Date: Wed, 13 Apr 2011 11:47:23 -0400 (EDT) [thread overview]
Message-ID: <alpine.DEB.2.02.1104131139380.11270@p34.internal.lan> (raw)
Hello,
I recall using this driver in staging and it crashing my machine, now
thats its no longer in staging, I thought I'd give it another try.. Using
the following wireless usb adapter, I'm seeing very high latency when using
the device in Linux, (with Windows, there are no problems). Using Debian
Testing + wpa_supplicant, using the following USB adapter:
Bus 001 Device 004: ID 148f:3070 Ralink Technology, Corp. RT2870/RT3070
Wireless Adapter
$ ping wireless-host
PING wireless-host (192.168.1.2) 56(84) bytes of data.
64 bytes from wireless-host (192.168.1.2): icmp_req=1 ttl=64 time=1002 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=2 ttl=64 time=3.84 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=3 ttl=64 time=23.3 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=4 ttl=64 time=40.1 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=5 ttl=64 time=991 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=6 ttl=64 time=0.583 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=7 ttl=64 time=1033 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=8 ttl=64 time=33.2 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=9 ttl=64 time=991 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=10 ttl=64 time=2.66 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=11 ttl=64 time=1029 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=12 ttl=64 time=31.3 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=14 ttl=64 time=997 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=15 ttl=64 time=0.884 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=16 ttl=64 time=1049 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=17 ttl=64 time=49.6 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=18 ttl=64 time=989 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=19 ttl=64 time=1.62 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=20 ttl=64 time=1047 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=21 ttl=64 time=47.6 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=22 ttl=64 time=982 ms
64 bytes from wireless-host (192.168.1.2): icmp_req=23 ttl=64 time=0.607 ms
--- wireless-host ping statistics ---
24 packets transmitted, 22 received, 8% packet loss, time 23009ms
rtt min/avg/max/mdev = 0.583/470.533/1049.181/494.399 ms, pipe 2
I am using the following ralink firmware:
ii firmware-ralink 0.29 Binary firmware for Ralink wireless cards
$ dpkg -L firmware-ralink
/.
/lib
/lib/firmware
/lib/firmware/rt3090.bin
/lib/firmware/rt2860.bin
/lib/firmware/rt73.bin
/lib/firmware/rt3071.bin
/lib/firmware/rt2561.bin
/lib/firmware/rt3070.bin
/lib/firmware/rt2661.bin
/lib/firmware/rt2870.bin
/lib/firmware/rt2561s.bin
/usr
/usr/share
/usr/share/bug
/usr/share/bug/firmware-ralink
/usr/share/bug/firmware-ralink/presubj
/usr/share/doc
/usr/share/doc/firmware-ralink
/usr/share/doc/firmware-ralink/changelog.gz
/usr/share/doc/firmware-ralink/copyright
Is there a certain firmware or other driver I should be using for this
USB wireless device so I do not get spouts of 1 second latency?
Justin.
next reply other threads:[~2011-04-13 15:47 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-13 15:47 Justin Piszcz [this message]
2011-04-13 15:59 ` Ivo Van Doorn
2011-04-13 16:01 ` Justin Piszcz
[not found] ` <BANLkTinxkXi6WnAyXoZLDR+uyL+TmevuPw@mail.gmail.com>
2011-04-13 16:25 ` Daniel Halperin
2011-04-13 17:57 ` Justin Piszcz
2011-04-13 18:37 ` Daniel Halperin
2011-04-13 20:13 ` Justin Piszcz
2011-04-13 20:31 ` Daniel Halperin
2011-04-13 20:36 ` Justin Piszcz
2011-04-13 22:26 ` Joshua Scoggins
2011-04-14 5:38 ` Igor Plyatov
2011-04-14 5:17 ` Igor Plyatov
2011-04-13 16:11 ` Walter Goldens
2011-04-13 18:44 ` Marc Dietrich
2011-04-25 18:35 ` 2.6.38: rt2800usb: driver is crashing the kernel Justin Piszcz
2011-04-25 20:52 ` Roland Dreier
2011-04-25 20:56 ` Justin Piszcz
2011-04-26 10:22 ` Justin Piszcz
2011-04-26 21:53 ` Justin Piszcz
2011-04-26 22:30 ` Larry Finger
2011-04-26 23:31 ` Justin Piszcz
2011-04-27 0:29 ` Jano
2011-05-02 23:46 ` Justin Piszcz
2011-05-03 1:15 ` Larry Finger
2011-05-03 12:53 ` Walter Goldens
2011-05-03 13:08 ` Jools Wills
2011-05-26 16:24 ` Justin Piszcz
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