Hello Jordan, I found your thread while searching for the similar problem. I am also experiencing same strange 40 second delays that appear intermittently and was wondering if you managed to find out the reason or the issue?
Cheers On Thursday, August 19, 2010 4:23:14 PM UTC+1, Jordan Frank wrote: > > Hi list, > > I have a simple app that just initiates a wifi scan every two seconds > and then logs the results. I am observing some strange behaviour, and > was wondering if anyone could shed some light. When I start scanning, > if the phone (Nexus One running latest Froyo OTA release) is just > sitting on my desk (screen on or off, it doesn't matter), I receive > the wifi scan results about 800ms after initiating the scan, fairly > consistently. At most, it takes a second and a half to receive the > results. However, if I get up and start to walk around the building > that I'm in, the time between initiating the scan and receiving the > result begins to vary greatly. What is interesting is that I start to > see a pattern where it will take about 40 seconds to receive results, > then I will get three or four results two seconds apart, then it takes > 40 seconds to receive the next set of results, then I get three or > four results two seconds apart, etc. > > I've tried obtaining a wifilock, both the FULL and SCAN ones, and that > doesn't help. Same with a partial wakelock. I've also tried setting up > a thread that pings the supplicant every second and reports when it is > unreachable, and it appears to always be responsive (ie., I never see > the report). I thought that maybe the problem was that I am unable to > receive the result of scans when I am switching between base stations > (which might happen when I move around), but if I manually switch > between two different networks, it does not cause a delay in my scans > (ie., I can still get the results with only a one second delay while > it's associating with the new network). > > Anyway, for my application, it would be incredibly useful to get wifi > results at a fairly consistent rate, and so I was hoping that someone > on this list might have some suggestions as to how I can achieve this. > Thanks in advance. > > Cheers, > Jordan -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
