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Message-ID: <alpine.DEB.2.02.1104131139380.11270@p34.internal.lan> Date: Wed, 13 Apr 2011 11:47:23 -0400 (EDT) From: Justin Piszcz <jpiszcz@...idpixels.com> To: linux-usb@...r.kernel.org, linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org Subject: 2.6.38: rt2800usb: high latency (1000ms)? 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. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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