Hi10 XR - windows laggy,

yablos · November 27, 2020, 3:34pm

Hi,
is the tablet really so slow compared to OLD
"lenovo miix 2 8 - Intel Atom Z3740 " ?

Windows lockscreen - when you slide up to unlock, it looks like 10fps animation
windows tablet mode - when switching between apps(left swipe), also really anoying few fps animation
scrolling in browser, laggy and choppy(especially, when page is loading few images, or banner video). Even lightweight pages(msn.com)

what iam tryied so far:

update intel drivers, to latest 27.20.100.8935
change DPI scale from factory 150% to 100%
disable font smoothing
update to latest windows 20H2(small improvement)

Other issue someone else posted “fix”:

whole screen dizzy after some time of browsing(not only video):
Problems with Video Playback, on the Chuwi Hi10 X
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers]
“DisableOverlays”=dword:00000001

Nowhere on internet is video to show how it performs in those simple real-tasks.
Doeas anyone has tip for fixing, or is it realy bad?

Mentioned “Intel Atom Z3740” has NONE of those issues, even on HEAVY pages(facebook), scrolling, switching between aps.
Thanks

clayto · November 28, 2020, 10:48pm

I can offer no help, other than to say my X10 which I have had a few weeks is quite fast and smooth compared my previous 4 year old Cube 10.1 iWork. In fact it has been a pleasure to use so far.

Might it be a problem with the RAM? The Cube with 4 G RAM would slow down when RAM usage got above 80% which kept happening, whereas the Chuwi with 6 G is often less than 50% usage and soon drops when the RAM is cleaned, for which I have a couple of apps. RAM cleaning / refresh is supposed to be automatic if Settings are right, but with the Cube I was always having to intervene manually, despite ‘experts’ saying that is unnecessary.

yablos · November 29, 2020, 9:37am

clayto, your answer helped me also. Iam glad, that it should work better.
It will be something different than RAM - because its slow “out of the box” - in lock screen, clean boot, when RAM is empty and only moving objects are clocks.
Ill try to record video so it will be better to clarify if it is normal or not.
Any bios settings may have so drasticall impact?

clayto · November 29, 2020, 8:02pm

A software firm called RESPLENDANCE has a small program called WHY SO SLOW which displays in real time the performance of the major components, and produces a report on them with advice. There is a FREE and a PRO version. I have used it free for some years, and recently it confirmed how much better my new Chuwi is running, compared to the Cube. It might help. It is quite simple to use, even for me.

Clayto

clayto · November 29, 2020, 8:06pm

yablos · December 1, 2020, 2:24pm

So this doesnt happening to You?
video:
https://youtu.be/_VxNpoYz1iQ

Also disabling - Control Flow Guard(CFG), helped a little(video recorder with disabled state)
https://superuser.com/questions/1487056/what-are-the-security-risks-of-disabling-control-flow-guard-for-the-desktop-wind

Thanks for the test-utility.

EndlessBiginner · December 2, 2020, 1:27am

I compared the number of pixels.

Miix 2 8 - 1280x800=1024k px
Hi10X - 1920x1200=2304k px

If the memory bus bandwidth is same, Hi10x take twice to draw all the screen than Miix. It seems to be the reason.

yablos · December 2, 2020, 2:00pm

Bandwith is much(twice) higer:
“Maximum memory bandwidth (GB/s)
atom=17.1
N4120= 38.4”

https://www.cpu-world.com/Compare/759/Intel_Atom_Z3740_vs_Intel_Mobile_Celeron_N4120.html

So i still hope.

EndlessBiginner · December 2, 2020, 4:17pm

Hi, @yablos

Thank you for the information. I don’t know about recent processors and read through the page you introduced. Then I’m confused with the explanation below (quoted from the web page).

Intel Mobile Celeron N4120 advantages
This microprocessor has 125% higher memory bandwidth, which helps to overcome memory bottlenecks and increase performance in memory bound applications and programs, dealing with large data sets. Performance improvement in tasks, that are not memory-bound, will be lower.

I know that physical memory bandwidth/theoretical memory bandwidth is NOT practical memory bandwidth, therefore I can accept the number “125%”. But the reason why 125% is not written in the page and It’s hard to believe with no doubt. (additionally what is compared to N4100? In the context of the web page, I guess Z3740. But may be different…)

P.S: I think that the memory bandwidth written in the web page is theoretical bandwidth because all of them are about 80% of physical bandwidth. Practical bandwidth is often less than a half of theoretical one.

EDIT: I found the benchmark named “UserBenchmark” which can be used without installation. I measured memory bandwidth of Hi10X with it. The result is that multi-core r/w performance is about a quarter of theoretical bandwidth.

Multi-core read/write test

MC Read 8.8
MC Write 9.7
MC Mixed 10.6
28% 9.7 GB/s

Single-core read/write test

SC Read 2.5
SC Write 4.9
SC Mixed 3
10% 3.47 GB/s

Latency

21% 194 ns

yablos · December 4, 2020, 9:24am

Thank You @EndlessBiginner
Previous link was comparison those 2 processors(n4120 vs z3740)
So here are fresh benchmarks, which raising more questions than answers - in single core its still 2x. Why is it slow in basic operations - system UI.Starting with installtion country picker

also lowering resolution(1280x800) didnt make any difference. Still same “lags”.
There must be some catch Noone else having this issues?

Hi10 XR:
https://www.userbenchmark.com/UserRun/36348753
Multi core
MC Read 9
MC Write 9.7
MC Mixed 11.4
29% 10 GB/s

Single core
SC Read 2.6
SC Write 5.2
SC Mixed 4.4
12% 4.07 GB/s

atom:
https://www.userbenchmark.com/UserRun/36313448
Multi core
MC Read 7.6
MC Write 7.7
MC Mixed 8
22% 7.77 GB/s

Single core
SC Read 2
SC Write 4.1
SC Mixed 0.8
7% 2.3 GB/s

EndlessBiginner · December 4, 2020, 2:04pm

Hi, @yablos

Thank you! Benchmark results you provided are really helpful. To find out the bottleneck of Hi10X graphics, I checked CPU load.

To check I used Firefox and Chrome for viewing YouTube. Both of them use all 4 CPU cores and use nearly 50% performance of them (confirmed with task manager). So we should assume browsers work with multi-core read/write, and at that time Miix 2 8 and Hi10X run on nearly same memory bandwidth.

We understood CPU is not the bottleneck (because load is only 50%). I checked GPU load next. Then I found that 3D core is almost always busy when scrolling YouTube page (100% busy with Firefox, nearly 100% busy with Chrome). Therefore GPU is the bottleneck.

I searched for graphics performance degradation related to UHD600 GPU and found that some Intel graphics driver (not up-to-date) causes degradation when playing heavy game with high-end PC. Intel says that this performance degradation is improved by the latest driver.

Here I should note that if you cannot manage device drivers, don’t try this. Engineer’s rule of thumb: If system works, never touch it!

I opened Intel web site and install DSA then latest graphics driver (27.20.100.8935). I felt graphic performance was improved A BIT. I may not notice if I don’t know that the driver was updated.

At the end, I set graphics performance maximum through Intel Graphics Command Center and opened YouTube with Chrome then scrolling YouTube page became smooth.

That’s all I know at the present. I’ll report here if any progress is made.

yablos · December 4, 2020, 2:46pm

Thanks, the point with “power management” is nice! I will give it a try also…wonder how it impact battery draining.
Fiddling with device drivers isnt problem at all
But if resolution is set same on both device, where all the power goes? (fillrate) youtube is an “heavy” page category.
Unfortunately on atom-miix the gpu monitor at taskmanager is not available.

GPU Type	HD (Bay Trail-T)	Intel UHD 600
Microarchitecture	Gen 7	Gen 9 LP
Execution units	4	12
Base frequency (MHz)	311	200
Maximum frequency (MHz)	667	700

only base frequency is worst
another tweak(battery life will suffer i think) cpu/gpu fixed multiplier
old intel atom drivers to the hi10xr could not be installed(they are just too old)

Have a nice weekend, looking forward to see updates

vainvain18fr · December 12, 2020, 7:51am

Hi,

I have exactly the same behavior on my new hi10xr.
I have tried also to update w10 and Intel display drivers without real improvement.

Have you identify one solution ?

vainvain18fr · December 12, 2020, 1:07pm

After investigation, I just discover that in the bios, my tablet was configured to run only on one core (instead of 4). After changing the parameter Active core management to “enabled”, my tablet is more fluid and the time to start apps are now ok.

It is strange to receive a tablet configured in this way… !!!

Digiscales · December 12, 2020, 4:53pm

How do you enter bios on this tablet? Do you need keyboard? I wish to check my settings

vainvain18fr · December 12, 2020, 6:22pm

Yes, i used the keyboard to access to BIOS.
it seems that it is mandatory to have a keyboard that could be connected on USB-C port (with HUB)

Rayan88 · December 15, 2020, 6:29pm

What are the best options to reduce graphics on windows 10? Its been laggy too lately.

yablos · January 12, 2021, 6:59am

In windows You can disable:

settings-system-about-system info-…

At BIOS iam didnt found relevant options with impact on performance, yet.

msbcd · January 12, 2021, 3:07pm

For me windows compatibility telemetry constantly used the cpu at 50-80%, after I disabled it everything became smooth. You can run a debloat script (like this Debloat Windows 10 in 2021 – Chris Titus Tech) too to get more performance boost.

yablos · January 12, 2021, 3:13pm

Any idea what to change/set/look for, when none of cpu/hdd/ram consuming process are on background? Single 4k Video playback is also smooth. But regular browser srcoll(without video playback), switching app animation is terrible experience.