High acpi.sys latency

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OostBlokBoys
Posts: 6
Joined: 15 Mar 2025, 10:36

High acpi.sys latency

Post by OostBlokBoys » 15 Mar 2025, 10:41

Hi all,

I've upgraded my system and downgraded from W10 to W11.
Currently being plagued with high ACPI.SYS latency and I have no idea how to fix it.
From what I've read W11 24H2 is a mess but I cba reinstalling Windows at the moment, is there any other fix?
Overall my W11 latency is HORRIBLE compared to W10.

Things I have tried:
Ultimate performance mode with all tweaked power plan settings
Disabling PSS in Bios

Specs:
USB DAC Sound Blaster E5
Rode NT USB mic
AMD 9800x3d
Asrock x870e Nova
Corsair dominator platinum 64 GB 6000 m/t ram
Nvidia 3070 gpu
2x Samsung 990 Pro SSD's
Attachments
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User avatar
Slender
Posts: 1848
Joined: 25 Jan 2020, 17:55

Re: High acpi.sys latency

Post by Slender » 15 Mar 2025, 19:46

nice to see 4 isr in wdf01000, that is instant value when move mouse. That is software issue and idk how to fix it on new platform (that exist on 9700k and 5800x).
you need to try 23h2 v2.

OostBlokBoys
Posts: 6
Joined: 15 Mar 2025, 10:36

Re: High acpi.sys latency

Post by OostBlokBoys » 20 Mar 2025, 06:03

Slender wrote: ↑
15 Mar 2025, 19:46
nice to see 4 isr in wdf01000, that is instant value when move mouse. That is software issue and idk how to fix it on new platform (that exist on 9700k and 5800x).
you need to try 23h2 v2.
For anyone looking, this is an ASRock exclusive issue.
I found the fix.
For some reason the SATA controller was not automatically updated and required a manual driver upgrade.
The update link can be found online but if necessary DM me.

User avatar
Slender
Posts: 1848
Joined: 25 Jan 2020, 17:55

Re: High acpi.sys latency

Post by Slender » 20 Mar 2025, 07:16

OostBlokBoys wrote: ↑
20 Mar 2025, 06:03
Slender wrote: ↑
15 Mar 2025, 19:46
nice to see 4 isr in wdf01000, that is instant value when move mouse. That is software issue and idk how to fix it on new platform (that exist on 9700k and 5800x).
you need to try 23h2 v2.
For anyone looking, this is an ASRock exclusive issue.
I found the fix.
For some reason the SATA controller was not automatically updated and required a manual driver upgrade.
The update link can be found online but if necessary DM me.
my sata is disables and nvme controller is updated.
that is e-cores / uefi issue

User avatar
kyube
Posts: 1035
Joined: 29 Jan 2018, 12:03

Re: High acpi.sys latency

Post by kyube » 20 Mar 2025, 11:22

OostBlokBoys wrote: ↑
15 Mar 2025, 10:41
Hi all,

I've upgraded my system and downgraded from W10 to W11.
Currently being plagued with high ACPI.SYS latency and I have no idea how to fix it.
From what I've read W11 24H2 is a mess but I cba reinstalling Windows at the moment, is there any other fix?
Overall my W11 latency is HORRIBLE compared to W10.

Things I have tried:
Ultimate performance mode with all tweaked power plan settings
Disabling PSS in Bios

Specs:
USB DAC Sound Blaster E5
Rode NT USB mic
AMD 9800x3d
Asrock x870e Nova
Corsair dominator platinum 64 GB 6000 m/t ram
Nvidia 3070 gpu
2x Samsung 990 Pro SSD's
LatencyMon is not a good way to troubleshoot DPC/ISR driver performance in Windows.
Try using ETW TUIs such as xperf or xtw, they provide much less overhead and give you specifics.

Choosing the right motherboard controllers, their specific, best performing drivers and right I/O slots are key when it comes to the user experience on all CPU platforms, regardless of the OS version one has.
Slender wrote: ↑
15 Mar 2025, 19:46
nice to see 4 isr in wdf01000, that is instant value when move mouse. That is software issue and idk how to fix it on new platform (that exist on 9700k and 5800x).
you need to try 23h2 v2.
Have you tried using an ASMEDIA-based PCIe card or using Fernando's modded Intel 300-series USB drivers?
The former should lead to much less DPC/ISR overhead compared to Microsoft's default USB drivers (wdf0100.sys)
https://www.station-drivers.com/index.p ... ang,en-gb/
The intel ones can be found here: https://winraid.level1techs.com/t/outda ... dded/30871
Listed as:
for Intel Chipset systems from 300-Series up (DeviceID of the USB 3.1 Controller: DEV_A36D):

You can find working Intel USB 3.1 drivers within the start post of >this< 802 thread.

User avatar
Slender
Posts: 1848
Joined: 25 Jan 2020, 17:55

Re: High acpi.sys latency

Post by Slender » 20 Mar 2025, 23:21

kyube wrote: ↑
20 Mar 2025, 11:22
OostBlokBoys wrote: ↑
15 Mar 2025, 10:41
Hi all,

I've upgraded my system and downgraded from W10 to W11.
Currently being plagued with high ACPI.SYS latency and I have no idea how to fix it.
From what I've read W11 24H2 is a mess but I cba reinstalling Windows at the moment, is there any other fix?
Overall my W11 latency is HORRIBLE compared to W10.

Things I have tried:
Ultimate performance mode with all tweaked power plan settings
Disabling PSS in Bios

Specs:
USB DAC Sound Blaster E5
Rode NT USB mic
AMD 9800x3d
Asrock x870e Nova
Corsair dominator platinum 64 GB 6000 m/t ram
Nvidia 3070 gpu
2x Samsung 990 Pro SSD's
LatencyMon is not a good way to troubleshoot DPC/ISR driver performance in Windows.
Try using ETW TUIs such as xperf or xtw, they provide much less overhead and give you specifics.

Choosing the right motherboard controllers, their specific, best performing drivers and right I/O slots are key when it comes to the user experience on all CPU platforms, regardless of the OS version one has.
Slender wrote: ↑
15 Mar 2025, 19:46
nice to see 4 isr in wdf01000, that is instant value when move mouse. That is software issue and idk how to fix it on new platform (that exist on 9700k and 5800x).
you need to try 23h2 v2.
Have you tried using an ASMEDIA-based PCIe card or using Fernando's modded Intel 300-series USB drivers?
The former should lead to much less DPC/ISR overhead compared to Microsoft's default USB drivers (wdf0100.sys)
https://www.station-drivers.com/index.p ... ang,en-gb/
The intel ones can be found here: https://winraid.level1techs.com/t/outda ... dded/30871
Listed as:
for Intel Chipset systems from 300-Series up (DeviceID of the USB 3.1 Controller: DEV_A36D):

You can find working Intel USB 3.1 drivers within the start post of >this< 802 thread.
im on GL 3.0 and Z790 usb, also trying asm3141 (with/without driver) and mcs9990 (that is old usbport.sys driver), behaivor is same.
2 things is affect on it:
csm mode, disable / enable ecores (bios / os numproc). For me better using csm + numproc.
how to check you have issue:
install w10, enable useplatformtick yes, open dpclat. checker: if you see 1004-1009 (1013-1015) when move mouse - you have issue.
if stable 1000 and 1001 when move mouse - not.

JimCarry
Posts: 586
Joined: 24 May 2024, 20:01
Location: csgo

Re: High acpi.sys latency

Post by JimCarry » 20 Mar 2025, 23:45

Slender wrote: ↑
20 Mar 2025, 23:21
kyube wrote: ↑
20 Mar 2025, 11:22
OostBlokBoys wrote: ↑
15 Mar 2025, 10:41
Hi all,

I've upgraded my system and downgraded from W10 to W11.
Currently being plagued with high ACPI.SYS latency and I have no idea how to fix it.
From what I've read W11 24H2 is a mess but I cba reinstalling Windows at the moment, is there any other fix?
Overall my W11 latency is HORRIBLE compared to W10.

Things I have tried:
Ultimate performance mode with all tweaked power plan settings
Disabling PSS in Bios

Specs:
USB DAC Sound Blaster E5
Rode NT USB mic
AMD 9800x3d
Asrock x870e Nova
Corsair dominator platinum 64 GB 6000 m/t ram
Nvidia 3070 gpu
2x Samsung 990 Pro SSD's
LatencyMon is not a good way to troubleshoot DPC/ISR driver performance in Windows.
Try using ETW TUIs such as xperf or xtw, they provide much less overhead and give you specifics.

Choosing the right motherboard controllers, their specific, best performing drivers and right I/O slots are key when it comes to the user experience on all CPU platforms, regardless of the OS version one has.
Slender wrote: ↑
15 Mar 2025, 19:46
nice to see 4 isr in wdf01000, that is instant value when move mouse. That is software issue and idk how to fix it on new platform (that exist on 9700k and 5800x).
you need to try 23h2 v2.
Have you tried using an ASMEDIA-based PCIe card or using Fernando's modded Intel 300-series USB drivers?
The former should lead to much less DPC/ISR overhead compared to Microsoft's default USB drivers (wdf0100.sys)
https://www.station-drivers.com/index.p ... ang,en-gb/
The intel ones can be found here: https://winraid.level1techs.com/t/outda ... dded/30871
Listed as:
for Intel Chipset systems from 300-Series up (DeviceID of the USB 3.1 Controller: DEV_A36D):

You can find working Intel USB 3.1 drivers within the start post of >this< 802 thread.
im on GL 3.0 and Z790 usb, also trying asm3141 (with/without driver) and mcs9990 (that is old usbport.sys driver), behaivor is same.
2 things is affect on it:
csm mode, disable / enable ecores (bios / os numproc). For me better using csm + numproc.
how to check you have issue:
install w10, enable useplatformtick yes, open dpclat. checker: if you see 1004-1009 (1013-1015) when move mouse - you have issue.
if stable 1000 and 1001 when move mouse - not.
slender can i see your bcdedit /enum ? mine is default should i also add "enable useplatformtick yes"

User avatar
Slender
Posts: 1848
Joined: 25 Jan 2020, 17:55

Re: High acpi.sys latency

Post by Slender » 20 Mar 2025, 23:47

JimCarry wrote: ↑
20 Mar 2025, 23:45
Slender wrote: ↑
20 Mar 2025, 23:21
kyube wrote: ↑
20 Mar 2025, 11:22
OostBlokBoys wrote: ↑
15 Mar 2025, 10:41
Hi all,

I've upgraded my system and downgraded from W10 to W11.
Currently being plagued with high ACPI.SYS latency and I have no idea how to fix it.
From what I've read W11 24H2 is a mess but I cba reinstalling Windows at the moment, is there any other fix?
Overall my W11 latency is HORRIBLE compared to W10.

Things I have tried:
Ultimate performance mode with all tweaked power plan settings
Disabling PSS in Bios

Specs:
USB DAC Sound Blaster E5
Rode NT USB mic
AMD 9800x3d
Asrock x870e Nova
Corsair dominator platinum 64 GB 6000 m/t ram
Nvidia 3070 gpu
2x Samsung 990 Pro SSD's
LatencyMon is not a good way to troubleshoot DPC/ISR driver performance in Windows.
Try using ETW TUIs such as xperf or xtw, they provide much less overhead and give you specifics.

Choosing the right motherboard controllers, their specific, best performing drivers and right I/O slots are key when it comes to the user experience on all CPU platforms, regardless of the OS version one has.
Slender wrote: ↑
15 Mar 2025, 19:46
nice to see 4 isr in wdf01000, that is instant value when move mouse. That is software issue and idk how to fix it on new platform (that exist on 9700k and 5800x).
you need to try 23h2 v2.
Have you tried using an ASMEDIA-based PCIe card or using Fernando's modded Intel 300-series USB drivers?
The former should lead to much less DPC/ISR overhead compared to Microsoft's default USB drivers (wdf0100.sys)
https://www.station-drivers.com/index.p ... ang,en-gb/
The intel ones can be found here: https://winraid.level1techs.com/t/outda ... dded/30871
Listed as:
for Intel Chipset systems from 300-Series up (DeviceID of the USB 3.1 Controller: DEV_A36D):

You can find working Intel USB 3.1 drivers within the start post of >this< 802 thread.
im on GL 3.0 and Z790 usb, also trying asm3141 (with/without driver) and mcs9990 (that is old usbport.sys driver), behaivor is same.
2 things is affect on it:
csm mode, disable / enable ecores (bios / os numproc). For me better using csm + numproc.
how to check you have issue:
install w10, enable useplatformtick yes, open dpclat. checker: if you see 1004-1009 (1013-1015) when move mouse - you have issue.
if stable 1000 and 1001 when move mouse - not.
slender can i see your bcdedit /enum ? mine is default should i also add "enable useplatformtick yes"
i dont use any bcdedit on w11 and using only useplatformtick yes for w10, we have same.

JimCarry
Posts: 586
Joined: 24 May 2024, 20:01
Location: csgo

Re: High acpi.sys latency

Post by JimCarry » 20 Mar 2025, 23:47

Slender wrote: ↑
20 Mar 2025, 23:47
JimCarry wrote: ↑
20 Mar 2025, 23:45
Slender wrote: ↑
20 Mar 2025, 23:21
kyube wrote: ↑
20 Mar 2025, 11:22


LatencyMon is not a good way to troubleshoot DPC/ISR driver performance in Windows.
Try using ETW TUIs such as xperf or xtw, they provide much less overhead and give you specifics.

Choosing the right motherboard controllers, their specific, best performing drivers and right I/O slots are key when it comes to the user experience on all CPU platforms, regardless of the OS version one has.



Have you tried using an ASMEDIA-based PCIe card or using Fernando's modded Intel 300-series USB drivers?
The former should lead to much less DPC/ISR overhead compared to Microsoft's default USB drivers (wdf0100.sys)
https://www.station-drivers.com/index.p ... ang,en-gb/
The intel ones can be found here: https://winraid.level1techs.com/t/outda ... dded/30871
Listed as:
im on GL 3.0 and Z790 usb, also trying asm3141 (with/without driver) and mcs9990 (that is old usbport.sys driver), behaivor is same.
2 things is affect on it:
csm mode, disable / enable ecores (bios / os numproc). For me better using csm + numproc.
how to check you have issue:
install w10, enable useplatformtick yes, open dpclat. checker: if you see 1004-1009 (1013-1015) when move mouse - you have issue.
if stable 1000 and 1001 when move mouse - not.
slender can i see your bcdedit /enum ? mine is default should i also add "enable useplatformtick yes"
i dont use any bcdedit on w11 and using only useplatformtick yes for w10, we have same.
so if i have win 10 i should add useplatformtick yes ?
Last edited by JimCarry on 21 Mar 2025, 00:21, edited 1 time in total.

User avatar
Slender
Posts: 1848
Joined: 25 Jan 2020, 17:55

Re: High acpi.sys latency

Post by Slender » 20 Mar 2025, 23:50

JimCarry wrote: ↑
20 Mar 2025, 23:47
Slender wrote: ↑
20 Mar 2025, 23:47
JimCarry wrote: ↑
20 Mar 2025, 23:45
Slender wrote: ↑
20 Mar 2025, 23:21


im on GL 3.0 and Z790 usb, also trying asm3141 (with/without driver) and mcs9990 (that is old usbport.sys driver), behaivor is same.
2 things is affect on it:
csm mode, disable / enable ecores (bios / os numproc). For me better using csm + numproc.
how to check you have issue:
install w10, enable useplatformtick yes, open dpclat. checker: if you see 1004-1009 (1013-1015) when move mouse - you have issue.
if stable 1000 and 1001 when move mouse - not.
slender can i see your bcdedit /enum ? mine is default should i also add "enable useplatformtick yes"
i dont use any bcdedit on w11 and using only useplatformtick yes for w10, we have same.
so if i have win i should add useplatformtick yes ?
im using it only for test my issue with kernel timer, i get stable 1000us when no issues and unstable when move mouse (1004-1009) and 1000-1050 without mouse move when something wrong with gpu driver.

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