Hello Team,
I want to know whether the performance of hardware depends on Drivers which were installed. If so how could we know the best driver.
I am asking this question because the wireless firmware RT2870/RT3070 which performs well in Windows and the average ping time is low when compared to Linux i.e OpenSUSE 13.1.
Hard to say anything decent about this without any further information.
To be specific I have a WiFi Adapter RT2970/RT30370 and it works fine in Windows and the ping time is 1 ms whereas in Linux I experience less signal strength as well as high ping time with 4-5 ms. I also face disconnections in Linux.
I use OpenSUSE 13.1 with XFCE DE.
Is power management turned off? Check with
iwconfig
No the power management is turned ON.
After turning OFF power management I could see much better ping times but the signal strength remains the same. Also I want to know the relation between power management and wifi performance.
Can you share the iwconfig output so we can see RSSI level?
Also I want to know the relation between power management and wifi performance.
I can’t help with the level of detail you want with regards to how dynamic power management impacts on a given wifi chipset - that might be a good developer question. 
All I know is that some users report degraded performance with it enabled, so unless you need to conserve power, I recommend leaving it disabled.
The output of iwconfig
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:on
lo no wireless extensions.
eth0 no wireless extensions.
wlan1 IEEE 802.11bgn ESSID:"RDP_BGLR"
Mode:Managed Frequency:2.442 GHz Access Point: B8:C1:A2:13:E5:E4
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=67/70 Signal level=-43 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:49 Invalid misc:67 Missed beacon:0
Also the ping time suddenly increases.
64 bytes from 192.168.1.1: icmp_seq=20 ttl=30 time=5.43 ms
64 bytes from 192.168.1.1: icmp_seq=21 ttl=30 time=1.80 ms
**64 bytes from 192.168.1.1: icmp_seq=22 ttl=30 time=1.80 ms
64 bytes from 192.168.1.1: icmp_seq=23 ttl=30 time=161 ms
64 bytes from 192.168.1.1: icmp_seq=24 ttl=30 time=1.82 ms**
64 bytes from 192.168.1.1: icmp_seq=25 ttl=30 time=1.79 ms
This happens very frequently.
A quick search does turn up a lot of threads reporting the same. This is not really an openSUSE-specific issue. As such, I can only recommend posting this question here
https://wireless.wiki.kernel.org/en/users/support
IRC and/or Mailing list. Good luck with this.
On Tue 22 Sep 2015 12:16:01 AM CDT, deano ferrari wrote:
A quick search does turn up a lot of threads reporting the same. This is
not really an openSUSE-specific issue. As such, I can only recommend
posting this question here
IRC and/or Mailing list. Good luck with this.
Hi
Can also be channel interference (as in other AP’s close on same
channel), router bandwidth and sideband settings as well (40Mhz on 1x1
to get full speed).
–
Cheers Malcolm °¿° LFCS, SUSE Knowledge Partner (Linux Counter #276890)
SUSE Linux Enterprise Desktop 12 | GNOME 3.10.1 | 3.12.44-52.10-default
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Yes, interference is a common cause of this. I deal with this frequently in my job as a wireless broadband engineer 
OK Deano Thanks for the suggestion. I will post it in those forums.
Even changing the channels doesn’t help. Anyways Thanks for all the replies.