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  1. #141  
    Quote Originally Posted by aprasad
    Is there a way purge the cache manually (on demand) using dbCache?
    That's what DBCacheDA is for.
    V > Vx > m505 > m515 > T/T > T3 > TC > 650 > 680
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  2. #142  
    Ah. Thanks.

    The next step for me is to install both DBCachetool.prc and DBcacheDA.prc and play around. Are these the only one's I need? Or is there another "Desk Accessories" manager (like hack manager) that's also required?

    I wish someone translates the readme etc. Tinkering with the memory system based on TC discussion (mostly this thread), based on trial-n-error by more courageous folks sounds risky..
    --
    Aloke
    Cingular GSM
    Software:Treo650-1.17-CNG
    Firmware:01.51 Hardware:A
  3. #143  
    Quote Originally Posted by aprasad
    Ah. Thanks.

    The next step for me is to install both DBCachetool.prc and DBcacheDA.prc and play around. Are these the only one's I need? Or is there another "Desk Accessories" manager (like hack manager) that's also required?...
    You'll need a DA launcher to user DBCacheDA; I've used both McPhling and DA Launcher.
    Last edited by Bill Gamble; 08/14/2005 at 08:36 AM.
    V > Vx > m505 > m515 > T/T > T3 > TC > 650 > 680
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  4. #144  
    There were some earlier posts on launching the DA prc from ZLauncher as well.
    Palm Pilot-->Handspring Visor-->Treo 300-->Treo 600-->Treo 650-->Treo 700p+E62-->Treo700p+Curve (8300)-->Curve (8330)
  5. #145  
    Quote Originally Posted by Bill Gamble
    You'll need a DA launcher to user DBCacheDA; I've used both McPhling and DA Launcher.
    I already use McPhling. Will I need the DALauncher as well?
    --
    Aloke
    Cingular GSM
    Software:Treo650-1.17-CNG
    Firmware:01.51 Hardware:A
  6. #146  
    Quote Originally Posted by aprasad
    I already use McPhling. Will I need the DALauncher as well?
    No, McPhling is sufficient.
    V > Vx > m505 > m515 > T/T > T3 > TC > 650 > 680
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  7. #147  
    Be careful with this app as when clearing occurs, there is a risk of losing dbs opened. I lost my saved preferences and other prcs due to this. Im using Resco Locker now and it has stabilized my Treo. Also having db cache actively installed slows down the Treo's performance.
  8. #148  
    Quote Originally Posted by MFB
    Be careful with this app as when clearing occurs, there is a risk of losing dbs opened. I lost my saved preferences and other prcs due to this. Im using Resco Locker now and it has stabilized my Treo. Also having db cache actively installed slows down the Treo's performance.
    Very true and one of the downsides of dbCacheTool auto-clear being turned on. What apps (and versions) do you lock with Resco Locker? It's hard to pin down which apps might have which files opened, so it's hard to know which ones to lock. Do you just lock everything that is constantly running (e.g. Butler, TreoGuard, ProfileCare, etc)?
  9. #149  
    I've installed DBCache Tool and am not sure what the "Apps..." section is for. If I add an app, does it stop it from having its cache cleared or force its cache to be cleared everytime you exit?
  10. #150  
    I agree. dbCache Tool haw created more problems than it has solved. I use Resco Locker. So far I locked only ZLauncher - with significant improvement in stability.
  11. #151  
    Quote Originally Posted by tomvb2000
    Very true and one of the downsides of dbCacheTool auto-clear being turned on. What apps (and versions) do you lock with Resco Locker? It's hard to pin down which apps might have which files opened, so it's hard to know which ones to lock. Do you just lock everything that is constantly running (e.g. Butler, TreoGuard, ProfileCare, etc)?
    Lock 3rd party apps that are found under hede notification using Palminternals. I locked apps that run in the background.
  12. #152  
    Does the Palm OS release the NVFS cache, EVER? Or should we blame applications for not releasing the memory?

    What I don't understand is: for applications that are not running in the background, like Blazer, Versamail, Java, why doesn't the OS make the memory available to the next big program I run?

    Is it a bug in the OS? If so, this is too huge a bug to have survived for so long ...
    --
    Aloke
    Cingular GSM
    Software:Treo650-1.17-CNG
    Firmware:01.51 Hardware:A
  13. #153  
    I don't think I can answer the question definitely, but I'm sure the cache is being managed - just not efficiently perhaps. You wouldn't think it should take this long, but it seems Palm has not perfected memory management on flash devices like the 650, T5, or LifeDrive. I think they all suffer from the same basic problems, but perhaps some of us push the limits farther than Palm expected.

    As I understand it, NVFS cache is a buffer between fast dynamic ram and slow flash ram and managed by the OS, not by individual apps.

    The memory which apps use/allocate at runtime comes out of the dynamic heap memory segment, so that's what would grow if they didn't release memory properly and the OS didn't do automatic cleanup (aka garbage collection).

    I believe NVFS Cache is only used for executable files and databases as a buffer before the data gets copied to flash for permanent storage.
  14. #154  
    Figured out something else today which further justifies locking background apps with Resco Locker.

    I was having a problem that whenever I turned the phone radio off after dbCache did some clearing, the Treo would reset. ##377 told me it was caused by an illegal instruction at address 730F9AE0. Looking through the PalmInternals notification list, Causerie had a notification registered at 730F9ADE (2 bytes before the illegal instruction address), so I locked Causerie with RL. Sure enough, the reset no longer happens. FWIW, Butler and GoodLink lock themselves into dbCache. Locking TreoGuard and mSafe (my other bg apps) with RL didn't seem to make any difference (so far at least).

    I set up the experiment carefully and repeated the exact steps before and after, so I feel fairly confident this is a complete fix. Time will tell for sure. If it works, this may allow me to turn dbCache auto-clear back on making things more automatic.

    HTH anyone else debug the "weird behavior" we've all seen.
  15. #155  
    Does anyone have a problem with disappearing SMS messages? This happens when I receive two SMS messages in quick succession. One minute I have 8 threads in the inbox and when I next receive another SMS message, all the threads are gone. However, the messages in all the other folders are still present. Only the inbox is onge. This problem only started 3 days ago which was also when I began using Resco Locker. I locked the following apps:

    ClipPRO
    ScrollJump
    Hi-Launcher
    FieldPlus
    Uninstall Manager
    SnapCalc5

    Anyone got any ideas what's going on?
    Treo 680 Graphite, Unlocked GSM (FW: MW01.50 | SW: TREO680-1.04-ROW | HW: A)
  16. #156  
    Personally I think that the "largest/max free chunk" value is more important.

    When the NVFS cache gets stuffed, it will simply purge existing records to facilitate the incoming ones. If however, the incoming records happen to be too big for the NVFS cache to accomodate, then no amount of purging (of existing records) is going to help. This is the cause for most "out of memory" errors.

    However, if the amount of background apps being used is extensive, then there will definitely be issues with purging. But there is no way to get around purging; it is the way Palm implemented NVFS. The only solution here would be to update the app.

    Therefore, management of the NVFS cache should be with two different goals in mind:-

    1. Preventing the "largest/max available chunk" from dropping beyond a certain level. (2MB should be sufficient to launch most apps. Think of it as a 'launchpad'.)

    2. Keeping the NVFS-unfriendly apps locked in the cache.

    We already have RescoLocker to handle the second concern. Hopefully someone will find a way to 'defrag' and release the "largest/max available chunk" of dbCache when it gets below a certain amount.
    Treo 680 Graphite, Unlocked GSM (FW: MW01.50 | SW: TREO680-1.04-ROW | HW: A)
  17. #157  
    Quote Originally Posted by rudychow
    Does anyone have a problem with disappearing SMS messages? This happens when I receive two SMS messages in quick succession. One minute I have 8 threads in the inbox and when I next receive another SMS message, all the threads are gone. However, the messages in all the other folders are still present. Only the inbox is onge. This problem only started 3 days ago which was also when I began using Resco Locker. I locked the following apps:

    ClipPRO
    ScrollJump
    Hi-Launcher
    FieldPlus
    Uninstall Manager
    SnapCalc5

    Anyone got any ideas what's going on?
    Rudychow,

    Did you ever figure out what happened here? I had this happen to me once a couple of weeks ago, just after receiving a text message from some unknown "vendor". All my text messages, except this one, come from known sources. About an hour after receiving it, I experienced the same inbox syndrome you did. I don't think it happened when receiving two in a row. I've been using Resco Locker and DBCacheTool for months, so I didn't think they had anything to do with it. Never happened any other time.

    I think I'll use filez to edit the messages db to remove that strange message and see what happens (I can always restore).
  18. #158  
    On dbCache tool: The new Cingular update has eliminated (IMO) the need for such tools. The Treo now releases the NVFS cache regularly as needed, especially when Blazer is launched.
    --
    Aloke
    Cingular GSM
    Software:Treo650-1.17-CNG
    Firmware:01.51 Hardware:A
  19. #159  
    Better memory management for the 650 is very good news. I am anxiously waiting for the ROW version so I can see the benefit for myself.
    Pilot 5K->Palm IIIc->Tungsten T/T2->Treo 650/680 -> Pre+ (1.4.5 & Uberkernel)
  20. #160  
    Quote Originally Posted by aprasad
    On dbCache tool: The new Cingular update has eliminated (IMO) the need for such tools. The Treo now releases the NVFS cache regularly as needed, especially when Blazer is launched.
    Does it defrag and release the "max chunk available" size?
    Treo 680 Graphite, Unlocked GSM (FW: MW01.50 | SW: TREO680-1.04-ROW | HW: A)
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