High Latency from storport.sys (Lenovo Ideapad 310-15ISK Windows 10)

  1. Posts : 7
    Windows 10

    High Latency from storport.sys (Lenovo Ideapad 310-15ISK Windows 10)

    Since my last post only got one reply, I'm hoping to get something more this time around.
    I currently own a lenovo ideapad 310 15isk laptop with a conexant smartaudio hd sound driver. Anytime I use the computer, the video and audio stutters. I have had this issue for the past month now. At first i thought it was my sound driver, but the problem came back. Then I thought it was my wifi adapter but the stutter returns after a day. Just when I think I've solved this issue, it keeps coming back and it's driving me crazy. I have done all these steps from a thread found in this forum and more:
    -Updated Windows 10 to fall Creators Update
    -Updated graphics driver
    -Updated sound driver
    -Updated wireless drivers
    -Disabled wifi card and used a USB adaptor instead
    -Disabled my page file
    -Disabled event log
    -Tried a different browser
    -Reset Wifi adapter.
    -Changed bit depth and sample rate of speakers.

    These are all the "solutions" I have tried in my attempt to rid myself of this problem. I don't have BitDefender on my computer, so that's not the root cause.

    I recently downloaded latencymon and ran a scan for almost two hours. These are the results:
    Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns appearing as drop outs, clicks or pops. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates. 
    LatencyMon has been analyzing your system for  1:48:48  (h:mm:ss) on all processors.
    Computer name:                                        LAPTOP-R3T327ML
    OS version:                                           Windows 10 , 10.0, build: 16299 (x64)
    Hardware:                                             80SM, LENOVO, Toronto 5A2
    CPU:                                                  GenuineIntel Intel(R) Core(TM) i3-6100U CPU @ 2.30GHz
    Logical processors:                                   4
    Processor groups:                                     1
    RAM:                                                  6049 MB total
    Reported CPU speed:                                   2304 MHz
    Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.
    The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.
    Highest measured interrupt to process latency (Ás):   100877.333333
    Average measured interrupt to process latency (Ás):   9.839905
    Highest measured interrupt to DPC latency (Ás):       100488.888889
    Average measured interrupt to DPC latency (Ás):       5.684598
    Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.
    Highest ISR routine execution time (Ás):              419.458333
    Driver with highest ISR routine execution time:       ACPI.sys - ACPI Driver for NT, Microsoft Corporation
    Highest reported total ISR routine time (%):          0.003735
    Driver with highest ISR total time:                   HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation
    Total time spent in ISRs (%)                          0.007969
    ISR count (execution time <250 Ás):                   210603
    ISR count (execution time 250-500 Ás):                0
    ISR count (execution time 500-999 Ás):                1
    ISR count (execution time 1000-1999 Ás):              0
    ISR count (execution time 2000-3999 Ás):              0
    ISR count (execution time >=4000 Ás):                 0
    DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.
    Highest DPC routine execution time (Ás):              101757.871528
    Driver with highest DPC routine execution time:       storport.sys - Microsoft Storage Port Driver, Microsoft Corporation
    Highest reported total DPC routine time (%):          0.417104
    Driver with highest DPC total execution time:         storport.sys - Microsoft Storage Port Driver, Microsoft Corporation
    Total time spent in DPCs (%)                          0.806944
    DPC count (execution time <250 Ás):                   7974001
    DPC count (execution time 250-500 Ás):                0
    DPC count (execution time 500-999 Ás):                22005
    DPC count (execution time 1000-1999 Ás):              16
    DPC count (execution time 2000-3999 Ás):              4
    DPC count (execution time >=4000 Ás):                 0
    Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution.
    Process with highest pagefault count:                 none
    Total number of hard pagefaults                       0
    Hard pagefault count of hardest hit process:          0
    Highest hard pagefault resolution time (Ás):          0.0
    Total time spent in hard pagefaults (%):              0.0
    Number of processes hit:                              0
    CPU 0 Interrupt cycle time (s):                       107.151674
    CPU 0 ISR highest execution time (Ás):                419.458333
    CPU 0 ISR total execution time (s):                   1.130005
    CPU 0 ISR count:                                      119962
    CPU 0 DPC highest execution time (Ás):                100908.200521
    CPU 0 DPC total execution time (s):                   65.466985
    CPU 0 DPC count:                                      5312216
    CPU 1 Interrupt cycle time (s):                       27.019825
    CPU 1 ISR highest execution time (Ás):                98.224826
    CPU 1 ISR total execution time (s):                   0.897490
    CPU 1 ISR count:                                      85691
    CPU 1 DPC highest execution time (Ás):                100869.886285
    CPU 1 DPC total execution time (s):                   13.022043
    CPU 1 DPC count:                                      209830
    CPU 2 Interrupt cycle time (s):                       165.107184
    CPU 2 ISR highest execution time (Ás):                82.246528
    CPU 2 ISR total execution time (s):                   0.036492
    CPU 2 ISR count:                                      3359
    CPU 2 DPC highest execution time (Ás):                101757.871528
    CPU 2 DPC total execution time (s):                   131.491420
    CPU 2 DPC count:                                      2384705
    CPU 3 Interrupt cycle time (s):                       9.574646
    CPU 3 ISR highest execution time (Ás):                51.415799
    CPU 3 ISR total execution time (s):                   0.017024
    CPU 3 ISR count:                                      1592
    CPU 3 DPC highest execution time (Ás):                266.706597
    CPU 3 DPC total execution time (s):                   0.742923
    CPU 3 DPC count:                                      90641
    If anyone can help me with my dilemma and get rid of this issue once and for all, I would greatly appreciate it

    Last edited by Brink; 12 Dec 2017 at 14:24. Reason: code box
      My Computer

  2. Posts : 7
    Windows 10
    Thread Starter

      My Computer

  3. Posts : 913

    First of all, make an image of your disk. Then you can experiment and if needed restore the system back.

    High ISR in ACPI.SYS and DPC Watchdog calls may be caused by Nvidia graphics hardware/driver. Try to completely disable this graphics card in BIOS if possible, or in Device Manager, uninstall Nvidia driver and use Intel GPU instead.
      My Computer

  4. Posts : 7
    Windows 10
    Thread Starter

    I only have an Intel(R) HD graphics 520 graphics card on the laptop.
      My Computer

  5. Posts : 7
    Windows 10
    Thread Starter

    bump. If anyone can help me please tell me what to do. This Problem is driving me crazy. I can't do anything on my computer without getting stuttered every second
      My Computer

  6. Posts : 913

    Maybe some modifications are equipped with Intel graphics only... But at Lenovo site is Nvidia graphics driver listed:

    You have to experiment yourself. (Make an system disk image before.)

    - try to install Advanced Configuration and Power Management Interface (ACPI) Driver for Windows 10 from Lenovo site
    - try to install Intel Chipset Driver for Windows 10 from Lenovo site

    - try to select Microsoft Basic Display Adapter driver instead ot the Intel one installed
    - try to install Intel VGA Driver for Windows 10 from Lenovo site
    - try to select Standard SATA AHCI Controller driver instead of the Intel one installed
    - try to install Intel Rapid Storage Technology Driver for Windows 10 from Lenovo site

    - in Control Panel/Power Options, select Maximum/High Performance power plan
    - check if you have the latest bios/uefi (flashing it may be a little bit dangerous).
      My Computer

  7. Posts : 7
    Windows 10
    Thread Starter

    bump. I tried all the suggestions you gave me. None seemed to worked. I even reset my pc to factory settings since I didn't have any important data on the computer but the problem still persists. Do you require additional information muchomurka
      My Computer


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