Windows 10: Memory leak (usage gradually increases)

Discus and support Memory leak (usage gradually increases) in Windows 10 Performance & Maintenance to solve the problem; Sorry, but that is not what I asked for. What is needed is a screenshot of Task Manager - Performance tab, showing memory info when the problem... Discussion in 'Windows 10 Performance & Maintenance' started by allam447635, Aug 14, 2017.

  1. LMiller7 Win User

    Memory leak (usage gradually increases)


    Sorry, but that is not what I asked for.
    What is needed is a screenshot of Task Manager - Performance tab, showing memory info when the problem occurs. This provides an overview of memory usage with important information not shown elsewhere. Very often such problems are not caused by a process at all.
     
    LMiller7, Aug 17, 2017
    #16

  2. Okay, here is a screenshot of the Performance tab. Please note that there was nothing running at the time other than Snipping Tool which does not use much memory.

    Memory leak (usage gradually increases) [​IMG]
     
    allam447635, Aug 17, 2017
    #17
  3. LMiller7 Win User
    The Non-paged pool value is high. A more usual value on a 6 GB system would be about 100 MB although it will vary depending on the hardware. The usual cause for this would be a driver problem. Can't help you with that. Otherwise usage seems normal.

    Be aware that memory usage in any modern operating system is highly dynamic. Memory usage with little running may seem high but that is only because there is no better use for it. Memory was meant to be used, not sit idle. But if a large program were to be started this usage would be automatically trimmed back to meet the demand.
     
    LMiller7, Aug 17, 2017
    #18
  4. Spectrum Win User

    Memory leak (usage gradually increases)

    Is the non-paged pool increasing over time?
     
    Spectrum, Aug 17, 2017
    #19
  5. As I said, the memory usage with nothing running gradually increases, starting around 1.7 GB on my system and gradually climbing with no end in sight.
     
    allam447635, Aug 17, 2017
    #20
  6. Spectrum Win User
    I understand the overall memory usage is gradually increasing, but is the non-paged pool also increasing?
     
    Spectrum, Aug 17, 2017
    #21
  7. LMiller7 Win User
    Memory usage in Windows is by no means confined to processes. There is the Non-paged pool, the resident portion of the Paged pool, the file cache (quite different from the "Cached" value shown in Task Manager) and more. Most of this is not itemized in Task Manager at all.

    The Non-paged pool usage is very real memory usage. And in fact a high value here is far more serious than is process usage. Almost all process memory usage is pageable. This memory can be removed from RAM to the pagefile or elsewhere thus making it available it for more important uses. Windows memory manager has almost complete control over this. Under memory pressure the usage of processes will be reduced to meet the demand, drastically if necessary.

    Not so with the Non-paged pool. All of this must remain in RAM at all times, even in the event of extreme memory pressure. The memory manager has no control over it. The only limit on it's size imposed by the OS is 75% of RAM size or 128 GB, whichever is less.

    When memory usage is abnormally high it is very often caused by the Non-paged pool. From what I have seen on this and other forums it seems to be more often than not. Other than the OS itself the biggest user of the Non-paged pool is device drivers. Unfortunately this can be difficult to diagnose. Process usage of the pool is usually quite trivial, rarely more than a few hundred KB for an individual process. 1 MB would be very high. This can be shown in Task Manager but by default it is not.
     
    LMiller7, Aug 17, 2017
    #22
  8. Memory leak (usage gradually increases)

    Yes, it is also gradually increasing.
     
    allam447635, Aug 18, 2017
    #23
  9. Yes, it is also gradually increasing.
     
    allam447635, Aug 18, 2017
    #24
  10. The non-paged pool started out around 170 MB and is now 280 MB. Only program running is the Chrome which I am using to post this.
     
    allam447635, Aug 18, 2017
    #25
  11. Eagle51 Win User
    Did you try PoolMonX (Post #3 in this thread) to see what it showed ?
     
    Eagle51, Apr 4, 2018
    #26
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Memory leak (usage gradually increases)

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