On Sat, Dec 1, 2012 at 7:07 AM, Cengiz Günay > I tried setting ips=0
> # modprobe -v rtl8723e ips=0
> insmod /lib/modules/3.4-trunk-amd64/kernel/drivers/net/wireless/rtlwifi/rtl8723e/rtl8723e.ko
> ips=0
>
> I still see drops, but I feel the connections is much more stable (I
> was able to see a youtube video without interruption somehow):
> # dmesg | grep lost | tail -5
> [ 2945.567620] wlan0: Connection to AP [snip] lost.
> [ 2949.565782] wlan0: Connection to AP [snip] lost.
> [ 2954.555432] wlan0: Connection to AP [snip] lost.
> [ 2972.499182] wlan0: Connection to AP [snip] lost.
> [ 3156.474054] wlan0: Connection to AP [snip] lost.
To quantify the "feeling of improvement", I calculated MTBF before and after:
Before setting ips=0:
# dmesg | grep lost | head -20 | awk 'BEGIN{printf "tf = [ "} {printf
$1 $2 " "} END{print "]; tbfs = diff(tf); mtbf=mean(tbfs),
stdbf=std(tbfs)"}' | octave -q
mtbf = 20.044
stdbf = 10.249
After setting ips=0:
# dmesg | grep lost | tail -20 | awk 'BEGIN{printf "tf = [ "} {printf
$1 $2 " "} END{print "]; tbfs = diff(tf); mtbf=mean(tbfs),
stdbf=std(tbfs)"}' | octave -q
mtbf = 65.917
stdbf = 43.618
There is definitely an improvement in MTBF from 20 to 65 s!
-Cengiz
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