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Trevor1234
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Joined: Apr 30, 2005
Posts: 810
Location: Milton Keynes
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 Posted: Thu Feb 19, 2009 2:26 pm Post subject: |
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Hi AndyVaughan
When I mentioned that I thought it maybe a Hardware problem I should have said a combination of hardware/software problem.
I think we can all agree that we all have the same software from Tomtom, so it must be identical. And we all have the same devices (mine’s a 720). Now, the way I see it is that some users are using options (Bluetooth, IQ Routing, Street names etc) and others are not. If that was to be the cause then that would mean the device was not man enough to handle the software/workload. I haven’t used Hands free, Street Names etc and mine runs faultlessly.
However, I will select Street Names tomorrow and see what happens.
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Tomtom Go 720.
Navcore 9.510
Central and Western Europe v855.2884
GPS World Traffic cameras
Home 2.7
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GolfSierra
Lifetime Member
Joined: Jun 08, 2004
Posts: 7
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| Posted: Thu Feb 19, 2009 2:57 pm Post subject: |
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| 090219-004695 |
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DennisN
Tired Old Man
Joined: Feb 27, 2006
Posts: 14902
Location: Keynsham
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| Posted: Thu Feb 19, 2009 3:54 pm Post subject: Re: Electro shock therapy |
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| wrrober wrote: | | In fact, I now carry a special paper clip in my car, just for the purpose of resetting my new high-end GPS...! |
How dare you! Don't you dare publish competitive items to my special range of both "Economy" and "Luxury" hand crafted reset tools. Grrrrr!!  It's amateurs like you who are putting us honest entrepreneurs out of business.
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Dennis
If it tastes good - it's fattening.
Two of them are obesiting!! |
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AndyVaughan
Lifetime Member
Joined: Apr 13, 2006
Posts: 1500
Location: Rossendale
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| Posted: Thu Feb 19, 2009 7:11 pm Post subject: |
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| Trevor1234 wrote: | Hi AndyVaughan
When I mentioned that I thought it maybe a Hardware problem I should have said a combination of hardware/software problem.
I think we can all agree that we all have the same software from Tomtom, so it must be identical. And we all have the same devices (mine’s a 720). Now, the way I see it is that some users are using options (Bluetooth, IQ Routing, Street names etc) and others are not. If that was to be the cause then that would mean the device was not man enough to handle the software/workload. I haven’t used Hands free, Street Names etc and mine runs faultlessly.
However, I will select Street Names tomorrow and see what happens. |
I have tried with everything disbaled - no BT, no additional POIs installed and all POIs disabled, no RDS-TMC, no mp3 playback etc. IQ routing on or off makes no difference. Unless TT made a hidden hardware revision change halfway through the production run I can't explain why some suffer and some don't. I have tried running off of the battery, off of the charger, dim the screen between instructions - believe me absolutely everything. The stutter always comes back, and the map lag is noticeable under all configurations I have tried. The worrying part is how quickly the free memory on the device drops, if you run 8.204 and compare you will see what I mean. Mine is a 920 so maybe the EPT makes some difference?
Andy |
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Malouff
Occasional Visitor
Joined: Dec 15, 2008
Posts: 30
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| Posted: Thu Feb 19, 2009 8:21 pm Post subject: |
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| AndyVaughan wrote: | | The worrying part is how quickly the free memory on the device drops |
I have also noticed that memory does not seem to get released once something has been loaded except for switching to a nonTTS voice.
Examples that you can see:
Bluetooth example
1. Disable bluetooth then power cycle.
2. Check free memory once you get a gps lock (don't press the repeat instruction area or do anything to make it speak as that will load the voice into memory)
3. Enable bluetooth
4. Check free memory and you will see how much bluetooth used.
5. Disable bluetooth and recheck (it will not get freed when disabling you need to power cycle)
MP3 Player
Similar to bluetooth you can see how much memory is being used by using the MP3 Player but again like bluetooth when quiting it the memory does not appear to get released.
Example that releases memory
Change to a nonTTS voice
1. Enable a TTS voice if you don't have one
2. Wait for a GPS fix and check memory
3. Click on the area to repeat a voice instruction so the TTS engine will get loaded into memory check memory to see how much that TTS voice is using.
4. Switch to a nonTTS voice
5. Click on the area to repeat a voice instruction so the nonTTS voice is used
6. Check memory for the final time and you will see that by switching memory has been freed.
7. Check free memory and you will see how much less a nonTTS voice is using and for the first time ever that the navcore is capable of releasing memory 
Note: memory does always fluctuate a little and I think it has to do with the GPS signal and that is why I say wait until you get a fix.
P.S. Andy is probably correct in the EPT also using memory. |
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hefilump
Occasional Visitor
Joined: Aug 11, 2005
Posts: 4
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| Posted: Fri Feb 20, 2009 9:23 am Post subject: Voice stutter |
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Logged a call with TTS on 24/11/08 about voice stutter - ticket number 3 081124-004769.
They advised re-installing the software which I did but no effect. Strangely this is the same 'fix' option they used when my phone connection stopped working.
The bluetooth handsfree only works when it feels like it - wish I had saved my money and bought a GO rather than a 720T
I have also joined there map update service and so far have seen no new maps - does this mean that their map service is like a number 9 bus... you wait for ages and then 3 come along at once!!
Let's make them sit up and listen! |
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mikealder
Pocket GPS Moderator
Joined: Jan 14, 2005
Posts: 19638
Location: Blackpool , Lancs
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| Posted: Fri Feb 20, 2009 9:53 am Post subject: Re: Voice stutter |
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| The List so Far wrote: | 081117-009376
081113-008732
081113-008690
090211-009565
090206-008225
090211-009883
081112-009236
081115-002073
090212-002296
081121-001137
090110-000739
090212-001930
081111-004812
090210-008609
090120-009575
090212-003857
081203-004434
090211-009565
081129-000191
090212-009868
081116-002272
081127-000587
081208-004217
090213-002871
090213-004556
081124-003264
090214-000338
090214-000878
081129-000702
090214-000899
090216-001350
090212-001295
081120-007315
081119-008120
081117-007146
090218-002396
090217-002902
090207-002634
090218-000170
090112-009658
090206-007843
090212-000015
081115-003085
090212-009146
090219-004695
081221-000562
081124-004769 |
Thats 47 up to now in a little over a week - Mike |
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layingback
Regular Visitor
Joined: Feb 12, 2009
Posts: 124
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| Posted: Fri Feb 20, 2009 10:15 am Post subject: |
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Yes, if it is memory fragmentation / poor garbage collection then changing options would have no effect. It is not just what options you have set, but what options you have had set. I.e. not what you ARE doing but what you HAVE been doing that impacts the memory fragmentation. If you tried a clearflash AFTER turning off the options, that might show some different results, as it would be starting with unfragmented memory (presumably).
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JimmyR
Lifetime Member
Joined: Jun 19, 2008
Posts: 12
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| Posted: Fri Feb 20, 2009 10:47 am Post subject: |
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Here's mine too:-
090220-001998
Regards
JimmyR |
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layingback
Regular Visitor
Joined: Feb 12, 2009
Posts: 124
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| Posted: Fri Feb 20, 2009 10:52 am Post subject: |
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Just a thought ...
Reading Malouff's post again. What if there is no garbage collector? If these options are not releasing space, perhaps - until now - there was never a need to reclaim memory?
If so then the only 2 straightforward ways to clear memory are clearflash (ie. simulate a power off/on) or reload a new app. With the new app being a different size, etc., some memory clear process must be built into loading up a new version of the app for the first time.
Thinking about users who've switched back to 8.3 and been ok, *maybe* the ACT of INSTALLING the new app is what is fixing things, rather than what the app actually is?
Granted 8.3 and up seem to be too something (big, use a new memory manager, allocate memory differently, or ...) to cause the problem in the first place. But everyone has success with the new app, almost regardless of 8.3x version, for some period of time until the performance problems hit again. But just maybe reloading a new version of app just resets the clock for you for a while ...
Just a though.
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DennisN
Tired Old Man
Joined: Feb 27, 2006
Posts: 14902
Location: Keynsham
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| Posted: Fri Feb 20, 2009 11:56 am Post subject: |
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As the ticket numbers are dated perhaps this will be easier for anyone to look at...
081111-004812
081112-009236
081113-008690
081113-008732
081115-002073
081115-003085
081116-002272
081117-007146
081117-009376
081119-008120
081120-007315
081121-001137
081124-003264
081124-004769
081127-000587
081129-000191
081129-000702
081203-004434
081208-004217
081221-000562
090110-000739
090112-009658
090120-009575
090206-007843
090206-008225
090207-002634
090210-008609
090211-009565
090211-009565
090211-009883
090212-000015
090212-001295
090212-001930
090212-002296
090212-003857
090212-009146
090212-009868
090213-002871
090213-004556
090214-000338
090214-000878
090214-000899
090216-001350
090217-002902
090218-000170
090218-002396
090219-004695
090220-001998
_________________
Dennis
If it tastes good - it's fattening.
Two of them are obesiting!! |
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Andy_P
Pocket GPS Moderator
Joined: Jun 04, 2005
Posts: 19991
Location: West and Southwest London
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| Posted: Fri Feb 20, 2009 12:15 pm Post subject: |
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| Malouff wrote: | | AndyVaughan wrote: | | The worrying part is how quickly the free memory on the device drops |
I have also noticed that memory does not seem to get released once something has been loaded except for switching to a nonTTS voice.
Examples that you can see:
Bluetooth example
1. Disable bluetooth then power cycle.
2. Check free memory once you get a gps lock (don't press the repeat instruction area or do anything to make it speak as that will load the voice into memory)
3. Enable bluetooth
4. Check free memory and you will see how much bluetooth used.
5. Disable bluetooth and recheck (it will not get freed when disabling you need to power cycle)
MP3 Player
Similar to bluetooth you can see how much memory is being used by using the MP3 Player but again like bluetooth when quiting it the memory does not appear to get released.
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Once again... it seems not to be that simple. 
If I am running mp3s over Bluetooth and get severe screen lag, I can cure it instantly by disabling Bluetooth - no switch off or re-boot required. |
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Malouff
Occasional Visitor
Joined: Dec 15, 2008
Posts: 30
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| Posted: Fri Feb 20, 2009 3:15 pm Post subject: |
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| Andy_P wrote: | | If I am running mp3s over Bluetooth and get severe screen lag, I can cure it instantly by disabling Bluetooth - no switch off or re-boot required. |
Is there a change in the amount of free memory when you disable bluetooth? |
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philpugh
Lifetime Member
Joined: Dec 28, 2005
Posts: 2003
Location: Antrobus, Cheshire
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| Posted: Fri Feb 20, 2009 3:56 pm Post subject: |
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I'm not too sure memory management is the issue here - the usual probs with poor memory management (sometimes known as MS W*nd*ws) are crashes. Don't the x20/x30 devices have some form of UNIX kernel - so there will be some rudimentary memory management going on. Also not reclaiming unused memory until it is needed is actually quite an efficient way to handle memory.
I had a few stutters on 8.300 and tried Mike's 8.320 as a "solution" - I don't have stutters any more but I also now use BT via the car radio - so no phone is connected to my 720. The problem feels more like available processor speed is the issue. I could imagine this sort of response if the system is overloaded with interrupt style processing. I guess there are some internal events that need instant response and these are getting in the way of the other processing.
edited to correct spellling!
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Trevor1234
Frequent Visitor
Joined: Apr 30, 2005
Posts: 810
Location: Milton Keynes
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| Posted: Fri Feb 20, 2009 9:03 pm Post subject: |
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Hi philpugh
Yes, it’s a puzzle. Its even more of a puzzle when you take into account that some users (including myself) suffer no stutter or screen lag. I have a strong suspicion that it’s also a puzzle at Tomtom HQ. If it only needed a software patch I’m sure that they would have sorted things by now.
After three months I think we can presume that the Captain of the ship at Tomtom must be getting impatient with his crew.
After all, no one likes bad publicity.
_________________
Tomtom Go 720.
Navcore 9.510
Central and Western Europe v855.2884
GPS World Traffic cameras
Home 2.7
iPhone 3G |
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