Asus G750JZ Massive dpc latency caused by NDIS and storport.sys

[Wulff]

Hello,
I have an Asus g750jz notebook with the 2x256gb sandisk raid0 config and a qca 8171/8175 lan card . I use this laptop for gaming abviously but also wanna use it for dj-ing with traktor and for that the lower the latency the better. i experienced audio crackles and pops during my dj sets and did a test with a program called latencymon. within a minute i get spikes and a message saying my computer is unable to handle real time audio processing. the 2 processes/ driver that caused this are NDIS wich is from the lan card and storport.sys from microsoft.

first problem is quite easy to be eleminated by disabling the lan card when dj-ing but this storport is not. Does anybody know if this is some driver for the raid config? and if yes would it be gone if i would re-setup my system non raid with ahci?

and does anybody else have the same issue as me then? if anyone is willing to try it on a similar raid0 setup as mine i wou;ld be very grateful. talked with asus costumer service here in holland as well, but all he said was its your problem we designed this laptop for gaming... hmmm

latencymon can be downloaded here: http://www.resplendence.com/latencymon

for me this is a very big issue since this in fact makes my 1900 euro laptop useless for dj-ing wich in my opinion is a bit weird

kind regards and thanx in advcance for any help/ tips

[Floppy72]

Nobody care about audio here...

Just gaming ..

I have the same problem with Asus G550jk ( cubase 7.5 here ... )

[swaaye]

Storport is related to SCSI and thus have you considered the RAID as a potential problem? Motherboard chipset RAID is usually not as super as it sounds on paper. I have seen system stuttering during movie playback of all things while using Smart Response and AFAIK that uses a form of RAID.

And seriously why use RAID 0 with SSDs? I would only consider a setup like that for a use case that needs massive sequential throughput.

[Wulff]

ok, i did a re-install of windows now and disabled the raid0 and installed windows on my 500gb 840 evo drive. no more issues with storport now so
thats good. Still find it weird that the lan card causes so much problems, never had that before on any laptop. Regretting a bit i chose the raid0
config now, never thought it might cause problems like this. hopefully the problem in traktor is also gone now but couldnt test that yet.

Looking at crucial m550 512gb m.2 ssd's to replace those 256 sandisk for storage purposes cause i read that removing this raid board and replace
it with a normal ssd is not easy at all if it is possible at all

[swaaye]

You could try looking for newer or older drivers for the LAN chip. Maybe it's just a driver problem. It's strange that this is a problem even if you aren't transferring data through the LAN chip.

[Wulff]

i tried it with 3 different versions but it made no difference , weird thing is also that whenever trying to re-install a newer driver or want to disable the lan card with device manager my system hangs endlessly trying to do that.. it also takes quite long to connect to internet whenever i reboot the laptop or even when removing the cable and pluggin it back in

[hmscott]

Wulff wrote:
Hello,
I have an Asus g750jz notebook with the 2x256gb sandisk raid0 config and a qca 8171/8175 lan card . I use this laptop for gaming abviously but also wanna use it for dj-ing with traktor and for that the lower the latency the better. i experienced audio crackles and pops during my dj sets and did a test with a program called latencymon. within a minute i get spikes and a message saying my computer is unable to handle real time audio processing. the 2 processes/ driver that caused this are NDIS wich is from the lan card and storport.sys from microsoft.

first problem is quite easy to be eleminated by disabling the lan card when dj-ing but this storport is not. Does anybody know if this is some driver for the raid config? and if yes would it be gone if i would re-setup my system non raid with ahci?

and does anybody else have the same issue as me then? if anyone is willing to try it on a similar raid0 setup as mine i wou;ld be very grateful. talked with asus costumer service here in holland as well, but all he said was its your problem we designed this laptop for gaming... hmmm

latencymon can be downloaded here: http://www.resplendence.com/latencymon

for me this is a very big issue since this in fact makes my 1900 euro laptop useless for dj-ing wich in my opinion is a bit weird

kind regards and thanx in advcance for any help/ tips

Wulff, it may be your Intel Rapid Storage Technology Manger version, and settings. I just ran latencymonitor 6 while doing a complete Crystaldiskmark run on my 128GBx2 RAID0, and latencymon didn't report any problems.



I am running Intel Rapid Storage Technology driver 13.1.0.1058, use the SetupRST.exe to install.

Intel® Rapid Storage Technology (Intel® RST) RAID Driver
https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=24006〈=eng&ProdId=2101
http://downloadmirror.intel.com/24006/eng/SetupRST.exe

Then change the settings to Write-Back cache and disable write cache flushing



These are the Qualcomm drivers I have installed



Here are the latest Notebook WLAN drivers (no Intel)
http://support.asus.com/Download.aspx?SLanguage=en&m=WLAN&os=3

Version V1.1.43.1280 - Qualcomm Atheros Wireless Lan Driver and Application
http://dlcdnet.asus.com/pub/ASUS/nb/DriversForWin8.1/WLAN/WLAN_QualcommAtherosKiller_Win81_64_VER114...

Here are the latest Notebook LAN drivers
http://support.asus.com/download.aspx?SLanguage=en&p=3&s=589&m=LAN&os=&hashedid=n%2fa

Version V2.1.0.21 - Qualcomm Atheros LAN Driver
http://dlcdnet.asus.com/pub/ASUS/nb/DriversForWin8.1/LAN/LAN_QualcommAtheros_Win81_64_VER21021.zip

If your network detection is taking too long, it could be your router DHCP exchange, and/or DNS - if you set those values for the interface directly, instead of using DHCP to negotiate them the set up will be quicker.

When you hang when trying to uninstall/install a new driver, the resource is in contention.

Exit all open programs that are using the network, and disable your firewall / anti-virus as well, just in case those are keeping the driver open.

There should be no problem uninstalling/installing the driver, but you could also try disabling the interface in the Network and Sharing Center => Change Adapter Settings - right click on the ethernet interface and disable it, wait for it to complete, then do the uninstall/install.

SSD's also need optimizing, there is a product I use to optimize the layout and keep it optimized, it improves the READ benchmark from about 850MB/sec to about 1040MB/sec.

I run PerfectDisk SMART Placement once on the C drive, then set it to SSD Optimize and that keeps the SSD fast and latency free. I did the 30 day trial and then bought it back in Windows 8.0 -> 8.1 Timeframe. Raxco was the quickest release on Windows 8.1.

PerfectDisk Pro 30 day trial
http://download.raxco.com/perfectdisk-pro



Right click on drive first time to select SMART Placement



Let us know how that works out 🙂

[broadleaf]

@Wulff havent read whole thread but did you install lan drivers from ASUS or from Atheros?
Cuz the latest are better.

[hmscott]

broadleaf wrote:
@Wulff havent read whole thread but did you install lan drivers from ASUS or from Atheros?
Cuz the latest are better.

broadleaf, which version on Asus vs Qualcomm's site specifically?

[broadleaf]

i used latest that i can find. Version from Qualcomm fixed a lot of bugs for me as well as better killer wlan performance, zero to no spikes and etc in comparison to asus one. I come to ASUS driver page just to find out which drivers i need and then get them from official sites where they are usually more updated (MORE UPDATED I SAY ahaha).