yashsingh1/xdaforums huggingface dataset:
[Nexus 5 General] sert00:
what you reach in antutu has nothing to do with binning and number of pvs.

This,it means for example,if you are a person who like do benchmarks,like me,to reach high frequencies and go with them without reboots,yours only option is Overvolting,because yours cpu with same voltages at same frequencies than other phones (with higher PVS number)it can only hangs and reboot.

Pay attention in case,because overvolting has limits,and you have to know how they are for yours phone.

I see only now my cpu binning,having the phone from some days,and sadly,being me a benchmarking entusiast\fun,only PVS 1 i have...but i already discovered it without seeing cpu binning,because after took out n5 from box when arrived,i rooted and overclocked it to 3ghz in only 20 minutes from being poered on.result--reboot,no poweron.tried 75mv overvolt for 3ghz freq step--no luck anyway.thinked fast of have a lower binned one,sadly.

I'll see days coming,if putting n5 on freezer and do bench will help a little to reduce heat and support some overvolting more,to bench a 3ghz.will see how it react,already did it with other phones i had with same low binnings.
[Nexus 5 General] Madpiercing:
What i noticed at stock frequencies is that with a lower voltage i bench more (2000 points give or take in antutu). I have termal throttling set to 80° compared to the 70 of franco kernel. So maybe unless you put the phone in the fridge like you said, you're better off with a lower frequency and lower voltage due to TT.
[Nexus 5 General] emperorfra:
Got a PVS 2 here
[Nexus 5 General] mathew1234:
Got PVS 3 here..

Sent from my amazing Nexus 5
[Nexus 5 General] imablackhat:
PVS 1 here. Anymore then -25 MV does a crash. So no point in even undervolting
[Nexus 5 General] manny05:
Well the command is not working for me at all.. However I can UV - 75 across and run 300mhz at 650mv. Very impressive. Getting great battery life!
[Nexus 5 General] dmeadows013:
1
[Nexus 5 General] Metralla100:
PVS 2 Stock rom+ bricked kernel

Stable UV:thumbup:
[Nexus 5 General] leontine:
PVS 4 found after reboot
[Nexus 5 General] cernekee:
Depends on how you're testing.

If you're running heavy loads under stressful conditions (sweeping the temperature range and maybe the voltage range), using software designed to detect bitflips and computational errors, you have a decent chance of noticing when the system is outside of its safe operating window.

If you're just rebooting and seeing if it crashes on boot, then that isn't a very good stability test. By the time it shows obvious signs of instability, you've pushed it WAY beyond the point of slow subtle corruption.

At the very least I'd run a memtester soak test overnight. In my experience, lmbench also seems to find a lot of hardware problems.

It depends on what "reallly bad" means to the user. For an end user, a slow data corruption problem might be merely annoying: lose an app this week, a contact next week, a photo next month... just clear data, reinstall the app, and move on. The data on your phone probably isn't mission-critical, especially if you're actively hacking it and trying new tweaks. And at any rate, it's more likely to get stolen or dropped in the toilet than to brick itself through undervolting.

For a manufacturer the same degree of instability could be extremely costly, both in terms of repairs and reputation.
[Nexus 5 General] Madpiercing:
yeah, that's why i said one shoud be smart and test his hardware :) bit yeah if one has sensibile data on his phone by all means he should prioritize stability! my nexus is more of a fun device than a work one,so with syncing and backup i feel relatevely safe messing with it. But everyone should evaluate his use before taking risks. i only had the impression the user was more scared than needed and wanted to reassure him
[Nexus 5 General] droid@xda:
PVS 2 here. -50 across the range and -100 for 300mhz. Can't go beyond that. I guess its pretty poor.
[Nexus 5 General] JamieFL:
I have the same problem...multiple reboots and waiting overnight and still does show anything. I was wondering if running ART instead of Delvic might be the problem. Can anyone confirm or dispute this?

I'm using ART on stock 4.4.2. I recently switched to Franco, but also tried it on the stock Kernel.
[Nexus 5 General] ickoicko:
Actually, the higher the PVS, the least or lowest voltage range to boot and the lower the PVS, the Higher voltage range to boot

Source: https://plus.google.com/+PaulReioux/posts/YXxQnnZxC7j
[Nexus 5 General] JTAllum:
I know it doesn't mean much but it still kinda sucks that mine is 0.
[Nexus 5 General] tlf55:
I don't understand, A PVS of 6 is 0.95volts, which a PVS of 0 is 1.100volts, so a guy with PVS 0 can undervolt at least by 150mv right ?

But a guy with a PVS of 6 can undervolt too.. So let say that this guy can undervolt by 25mv, this mean that PVS 0 should be able to undervolt by 175 in the final word ?
[Nexus 5 General] Lodix:
I don't think so, because the pvs 6 has 950mV to 2'3GHz and I can't go lower from 965mV or I get reboot. I have pvs 3.

Enviado desde mi SM-N9005 usando Tapatalk 2
[Nexus 5 General] tlf55:
So CPU are manufactured a different way ? why are there so many difference between 2 same cpu ?
[Nexus 5 General] nad4321:
PVS 2 is this bad? What is the actual difference?
[Nexus 5 General] iniz94:
The PVS 0 is at a higher voltage because it's more unstable at lower voltages compared to the PVS 6. The PVS 6 is stable at 0.95 mV, but the PVS 0 might not be.
[Nexus 5 General] LeJolly:
0.2 with PVS2 holy balls :D
[Nexus 5 General] MaulingDeOso:
Not necessarily true. PVS is a calibration measure, and can also mean that more voltage is being applied given lower intended values. So PVS 6 might set 950 mV, but also have an unintended extra 100 mV, pushing the total to 1.05V, or the same as a PVS 0 with no current leakage. The PVS number does have a correlation to instability and underclocking potential, in that the higher binned chip could have been fabricated cleanly enough to operate at said spec, but a higher PVS value can also be a worse underclocker than a lower one.

In short, we can't know why a particular CPU was binned a particular way. You have to experiment to see what your unit can tolerate.
[Nexus 5 General] jerrylzy:
It is because the silicon manufacturing process cannot ensure every chip to be the same. There are some chips able to handle higher frequencies at given voltage, and there are also some chips unable to handle a given frequency at given voltage. This is why manufacturers will bin their products, to make every chip work its best.
[Nexus 5 General] nad4321:
What does that mean?
[Nexus 5 General] hiback:
PVS

PVS Bin: 1

Does it really matter
[Nexus 5 General] abdel12345:
PVS 2 and 0.386. Is that good?

Either way I don't care because it runs like a champ w either way and I don't want to overclock. I actually underclock to 1.9 usually.
[Nexus 5 General] JamieFL:
I just switched ROMs from stock to OmniROM and after a totally fresh install, I still get nothing. New ROM...new kernel...:confused:

I'm using Android Terminal Emulator from Jack Palevich. Anyone using this one with success?
[Nexus 5 General] notfaded1:
Had to use other method to find...

I got a PVS of 2

I rebooted multiple times and couldn't ever get normal methods to work. I finally found it inside /sys/Kernel/debug/acpuclk/pvs_bin which is a text file with only PVS in it.
[Nexus 5 General] Fluidification:
PVS 2 here.. UV of -50 is stable for me
[Nexus 5 General] treIII:
I've never looked at this thread. But I have PVS 0. I can under volt 100 without any instability whatsoever. I've never known what CPU binning was but I've been running like this since I got my phone. 2 weeks ago. I also underclock down to 1700. Never a problem. Honestly don't see much of a difference doing either of these. I do this using elemental x and check everything with trickster mod. I average between 5-6 hours screen on time. Then the battery is down to 10 percent. And it doesn't matter if I have had my screen on for the 5-6 hours soon as it's done charging or if it takes me 20 hours before I have the screen on 5-6 hours. But I'm going to get at least 5. No more than 6. I am not a gamer so maybe that's why I have never seen any instability. I'm just a casual user. Phone calls, Internet, tapatalk, Couple benchmark tests and so forth. But I do ask this. When and what would I notice to be unstable to know? My phone actually bench's better undervolted. This is an interesting thread though. I can say this also. Over clocking doesn't seem to help when doing bench's past 2.7. But at 2.7 I can get 37000 on antutu.

Sent from my Nexus 5 using Xparent Blue Tapatalk 2
[Nexus 5 General] notfaded1:
Table to visualize better PVS bin speed / voltage ratios

This should make it much easier to see side by side how stock voltages vary by PVS at different speeds by default:

Speed PVS 0 PVS 1 PVS 2 PVS 3 PVS 4 PVS 5 PVS 6

300000 800000 800000 775000 775000 775000 750000 750000

345600 800000 800000 775000 775000 775000 750000 750000

422400 800000 800000 775000 775000 775000 750000 750000

499200 805000 800000 775000 775000 775000 750000 750000

576000 815000 800000 785000 775000 775000 750000 750000

652800 825000 810000 795000 780000 775000 760000 750000

729600 835000 820000 805000 790000 780000 770000 760000

806400 845000 830000 815000 800000 790000 780000 770000

883200 855000 840000 825000 810000 800000 790000 780000

960000 865000 850000 835000 820000 810000 800000 790000

1036800 875000 860000 845000 830000 820000 810000 800000

1113600 890000 875000 855000 840000 830000 820000 810000

1190400 900000 885000 865000 850000 840000 830000 820000

1267200 915000 895000 875000 860000 850000 840000 830000

1344000 925000 910000 890000 875000 860000 850000 840000

1420800 940000 920000 900000 885000 870000 860000 850000

1497600 950000 930000 910000 895000 880000 870000 860000

1574400 965000 945000 925000 910000 895000 880000 870000

1651200 980000 960000 940000 925000 910000 890000 875000

1728000 995000 975000 955000 935000 920000 900000 885000

1804800 1010000 990000 970000 950000 930000 910000 895000

1881600 1025000 1005000 980000 960000 940000 920000 905000

1958400 1040000 1020000 995000 970000 950000 930000 915000

2035200 1055000 1030000 1005000 985000 960000 940000 920000

2112000 1070000 1045000 1020000 995000 975000 955000 930000

2188800 1085000 1060000 1035000 1010000 985000 965000 940000

2265600 1100000 1075000 1050000 1025000 1000000 975000 950000
[Nexus 5 General] Beauenheim:
Looks like I have PVS 0.

Doesn't bother me a bit. I'm loving this phone.
[Nexus 5 General] JamieFL:
This method worked for me. Thank you. PVS:2
[Nexus 5 General] apoalex:
the fact that i stated a score in antutu was just to show the fact that it's actually capable regardless the fact that it was pvs 2... there was no need for an explanation, i already knew that. and relax... i know my stuff
[Nexus 5 General] notfaded1:
No problem.

That's the only way that worked for me as well :^}
[Nexus 5 General] Laurentyu1995:
For those who are having problem with android terminal commands , reboot the phone then try again ;)
[Nexus 5 General] notfaded1:
only found PVS in directory...

That never worked for me.... Even rebooting multiple times.
[Nexus 5 General] abdel12345:
Don't out a space between the line and the words.

please press the thanks button if I help you. It's free!
[Nexus 5 General] sert00:
...relax to me?where you see i'm not relaxed?calm down you,i only stated something,never thinked about you don't know your staff,and never get agitated.You already knew what?if you say what you sad,you don't know that,because has nothing to do have good points in benchmarks with the cpu binning number you have.number of pvs and point in antutu,has no correlation,ifyou know yours staff,you'll not say what you sad and never repeated it to me.

My god how awkward you are.
[Nexus 5 General] chrisono:
bin 2 here
[Nexus 5 General] Nexonian:
PVS 2
[Nexus 5 General] vesu:
Pvs4, not going to uv tho.
[Nexus 5 General] Lodix:
Can you try the min voltage that is stable for 2'3GHz on your phone ?

Enviado desde mi SM-N9005 mediante Tapatalk
[Nexus 5 General] vesu:
Sorry but my phone is not rooted.
[Nexus 5 General] aavvaallooss:
1. PVS:

PVS 2

2. ACPUCLK:

SPEED BIN: 1

ACPU PVS: 2

CPU Frequencies: 20
[Nexus 5 General] jtwlbz:
Pvs 1 not planning to useless uv
[Nexus 5 General] Jamith:
PVS 2 here. I underclock -75mV global and -150mV at 300MHz and is stable, no reboots so far. I'm using Cataclysm with Franco kernel r30.
[Nexus 5 General] jwong.hhf:
312K, PVS=2:(
[Nexus 5 General] Shibang:
PVS 3
[Nexus 5 General] gpvecchi:
A couple of questions, please:

1) My terminal doesn't report any value

2) You say " my mobile can run @2.8Ghz", but with wich voltage table? Mine reboots@2.5 with Bricked kernel (stock volts)

Thanks!
[Nexus 5 General] GR0S:
Any benchmarks to compare bins here?

Отправлено с моего GT-I9300
[Nexus 5 General] sirovai:
PSV 1 :(
[Nexus 5 General] linozoid:
pvs 1..

and why my device did'nt show like others in thsi thread

( others : root@hammerhead ,instead of mine root@android ) ?

somebody can xplain please....:confused:
[Nexus 5 General] aavvaallooss:
1 Reboot and try again

2. I don´t know
[Nexus 5 General] jtwlbz:
Nothing wrong don't be sad. Unless you are going to overclock hell out of your phone.
[Nexus 5 General] Adamus-Prime:
4 here...guess I'm lucky
[Nexus 5 General] bog3nator:
I got 5
[Nexus 5 General] GR0S:
What about making spreadsheet with Google docs for poll? It's interesting how many people have 4th bin

Отправлено с моего GT-I9300
[Nexus 5 General] RussianBear:
It's been tried already (i can provide the excel file), but it seems too challenging for people to keep count: http://xdaforums.com/showthread.php?p=47800084
[Nexus 5 General] GR0S:
What's point of 3ghz, if it slows down to 1ghz after 40 seconds?

---------- Post added at 06:12 PM ---------- Previous post was at 06:09 PM ----------

Please put this in first post, https://docs.google.com/forms/d/1A7mbNSisFmVKuHYRvSxfV8VOqp2gEbgP2NPBC5e24d4/viewform

I'll post graphs next week.
[Nexus 5 General] aavvaallooss:
My underclock/undervolt settings

Stock, TWRP, SuperSU, Dalvik/Bionic, Franco, Viper, Xposed.

PVS 2.

Stability Test (Classic stability test + CPU+GPU stability test)

Antutu X Benchmark (Custom test + Stability test)

Franco Kernel Updater.

-UnderClock: 1 step down

CPU Max Freq: 1958 MHz

GPU Max Freq: 389 MHz

-UnderVolt: 3 steps down

-75 mV global (Instant reboot trying -100)
[Nexus 5 General] Lownita:
Got RMA device today, this is a 1, old was 3. Old one could only handle -50 mV though. Let's see what this one can do.
[Nexus 5 General] Lodix:
This number is not very import since each pvs has diferent voltage to start the undervolting.
[Nexus 5 General] TonyTurboII:
4 here.
[Nexus 5 General] Lownita:
So, my 3 and 1 are both undervolting the same. -50/-75 mV.
[Nexus 5 General] drawde40599:
My 2 undervolts more than my 4 so I wouldn't look to deep into these numbers , they don't seem to matter so much like they did on N4 .
[Nexus 5 General] jtwlbz:
IMO this thread is meaningless and should be closed.
[Nexus 5 General] :
What do I do to get my binning number? I tried the above steps but all I get on the output line is

"1|root@hammerhead:/# "

Thats it... Any fix? Yes Im rooted, etc.etc.
[Nexus 5 General] Tommy-Geenexus:
pvs 0 :|

can handle max -100 mv undervolting and upto 2.7 ghz oc so it's ok.

Sent from my Nexus 5
[Nexus 5 General] jyuuken:
pvs 2 here. any recommended undervolting values?
[Nexus 5 General] montbazon:
Nope. Each chips are special.

You need to find your own velue.

Gesendet von meinem Nexus 4 mit Tapatalk
[Nexus 5 General] Lodix:
I think you can do -75mV for all and be stable.
[Nexus 5 General] jgw1985:
How much does binning effect the phone? Just got my RMA and my binning on the new one is 1 where as my return was a 3.
[Nexus 5 General] Stanlehh:
honestly I think not much, it affects the voltages that are the default values assigned for each clockspeed.

My n5 is a PVS 1 but it still can UV -75mV across with no issues.
[Nexus 5 General] LeoRex:
Yep. I mean, I have a 0 and it runs just fine. In fact, I loaded the davlik and bionic patches and my antutu scores jumped to Note 3 levels. Overclocking seems greedy at this point. :)
[Nexus 5 General] dhruvmalik:
PVS 3, not planning on uv; my N4 had PVS 2, so this is a bit of a step up ;)
[Nexus 5 General] foxmolder1985:
Does anyone know why I can't use Android Terminal Emulator? When I open it, it keep flashing like a strobo light and I can't use it. Is it a known issue? I've searched but found anything

edit: solved turning off Xposed module "Immerse Me"
[Nexus 5 General] chubby65:
Here's what I got

Don't know what it means but the phone absolutely flys
[Nexus 5 General] @wells:
PVS 2 here.
[Nexus 5 General] Tommy-Geenexus:
that means pvs 0 like i have, but it really doesn't matter my phone flies too

Gesendet von meinem Nexus 5 mit Tapatalk
[Nexus 5 General] chubby65:
That's all that matters mate
[Nexus 5 General] Nephilyn:
PVS 3 woo right?

Lower UV possibility?
[Nexus 5 General] LeoRex:
Yep.... I have a 0 PVS as well.... and I have to say that my phone zooms along... I picked it up a few weeks ago, and by now, the new car smell has worn off, but I am still impressed by the speed and responsiveness of the phone without messing with any of the processor settings... Now, I guess that I might have issues if I really try to push things to the CPU's envelope, but no matter... like I said, without overclocking/undervolting, this phone performs like a endurance racer (fast and stable).

So I've decided to just put it out of mind and not concern myself that I got put in the 0 bin. :) So to anyone that sees that rating and is disappointed, don't worry about it... it's just a number and that processor is still a beast.
[Nexus 5 General] chubby65:
I've tried the overclocking and it handles it well

I'm now running it just a little over stock with a small undervolt with bionic and dalvik patches and it feels great much better in fact than the z1 i just sold so I'm extremely happy with the set up I'm using doesn't really matter that it's the slower of all the cpu it just flies
[Nexus 5 General] foxmolder1985:
I think this thing is the most irrelevant ever. I made this and got 1. Rebooted phone and got 3. Rebooted phone and got 2 ;)
[Nexus 5 General] Smoosh1:
[SOLVED] Can't determine PVS

When I follow the instructions from post #1 it doesn't work for me somehow. The story goes like this:

1) I am rooted

2) I type su in Terminal Emulator -> the prompt canges from u0_a139@hammerhead to root@hammerhead

3) I type dmesg | grep PVS -> the prompt changes from root@hammerhead to 1|root@hammerhead. Nothing else happens.

What am I doing wrong?

-----------------------------------------

*** SOLUTION ***

A reboot solved the problem. Did exactly the same steps as described above and it worked this time.

Possible cause: SuperSU got updated prior to my attempt to figure out PVS. As I had to switch to su in Terminal Emulator, the missing reboot most probably was the culprit.
[Nexus 5 General] mojna37:
PVS 3 :)
[Nexus 5 General] TonyTurboII:
Just ordered a red 32GB.. Hope I end up with something good, lol. My current N5 is a PVS 4.
[Nexus 5 General] PainfulLover:
If you figure it out let me know. For a while there I had two identical n5s, one showed pvs, the other, gay.
[Nexus 5 General] Smoosh1:
It works for me now :o. See my original post #505 (edited).;)
[Nexus 5 General] PainfulLover:
That's not a solution. That was the first thing I tried when I couldn't get it to show pvs.
[Nexus 5 General] chubby65:
I took me 4 reboots to get it mate just keep trying
[Nexus 5 General] Smoosh1:
Well, this "solution" worked, at least for me.

Did you key in "dmesg | grep PVS" exactly as stated here, i.e. you typed the vertical bar (pipe symbol) and PVS in caps?

BTW...Which ROM and kernel do you use?
[Nexus 5 General] --anx--:
Well...what about the ACVU PVS = 0 ???

What does this mean?

Slow or fast?

To me it seems really fast the phone...
[Nexus 5 General] PLEEZEFRAGME:
they all have the same speed...pvs0 simply means "maybe" your cpu needs a tini tiny bit more energy for the same speed or its not good for OV or UV....
[Nexus 5 General] TonyTurboII:
Went from PVS 4 to 3 on my new device.

Boo.
[Nexus 5 General] bush911:
PVS 0 here
[Nexus 5 General] chubby65:
. Nothing to worry about mate it's still very fast and I have mine overclocked and undervolted
[Nexus 5 General] GodSlayer:
PVS 1
[Nexus 5 General] EminSG:
Does bigger number of pvs mean better cpu?(just don't exactly know what is the difference between them)

Отправлено с моего Nexus 5 через Tapatalk
[Nexus 5 General] :
Hi,

It's only (or mainly) about voltage, higher number means less voltage needed in theory. "Better" CPU is maybe not the right word, maybe better "tolerance".

Stock voltage are higher with a lower pvs_bin and lesser with a higher pvs_bin. You can compare the voltage tables here: http://xdaforums.com/showpost.php?p=47583830&postcount=2.

:)
[Nexus 5 General] KuChar_:
PVS 0

300 MHz @ 650 mV

rest -75mV

stable! I'm happy.
[Nexus 5 General] bushako:
u0_a63@hammerhead:/ $ su

root@hammerhead:/ # dmesg | grep PVS

<6>[ 0.751433] acpuclk-8974 qcom,acpuclk.30: ACPU PVS: 4

root@hammerhead:/ #?
[Nexus 5 General] qwahchees:
PVS 2, I can do about -100 to -75 UV. :\ this sucks, my N4 was fastest :|
[Nexus 5 General] VoluntaryMan:
I'm PVS bin 1 with the following voltages:

MHz Stock voltage - my voltage

300 MHz 775 - 650

422 MHz 775 - 675

652 MHz 795 - 720

729 MHz 805 - 730

883 MHz 825 - 775

960 MHz 835 - 785

1036 MHz 845 - 795

1190 MHz 865 - 815

1267 MHz 875 - 825

1344 MHz 860 - 835

1497 MHz 910 - 885

1574 MHz 925 - 900
[Nexus 5 General] gee2012:
I have PVS 2 and mine reboots at 300Mhz at 700mV ?
[Nexus 5 General] VoluntaryMan:
I guess it just goes to show that binning can still have a fair bit of variance.
[Nexus 5 General] Alucardis666:
PVS 1 here...

Running PA and Latest Linario Nightly...

300 - 666

422 - 696

652 - 747

729 - 756

883 - 784

960 - 808

1036 - 812

1190 - 824

1267 - 836

1497 - 867

1574 - 904

1728 - 920

1958 - 940

2265 - 1024

2419 - 1080

2572 - 1111
[Nexus 5 General] harysick:
PVS2 here

running ParanoidAndroid + FrancoKernel

300 MHz 650

422 MHz 675

652 MHz 720

729 MHz 730

883 MHz 750

960 MHz 760

1036 MHz 770

1190 MHz 790

1267 MHz 800

1497 MHz 835

1574 MHz 850

1728 MHz 880

1958 MHz 920

2265 MHz 975
[Nexus 5 General] GUGUITOMTG4:
This has nothing to do with speed. Plus you will have a hard time proving the Nexus 4 is faster than N5 performance wise.

Don't get mislead yourself.

I'm not the right person to say this, but this thread should not be taken seriously as result for 1 user mismatch others who have same numbers.

just imo.
[Nexus 5 General] :
Hi,

I think he meant that its Nexus 4 had a "fastest" CPU binning, in the sense where for the CPU binning it was this denomination instead of numbers for the Nexus 4 (well, some users had some numbers also):

1=slow
2=nominal
3=fast
4=faster
5=fastest

:)
[Nexus 5 General] Searz:
Yeah, that would be very interesting.

If what you're saying is applicable then the difference between the chips isn't as big as we might initially think.

But are you sure it is applicable? What makes you think that the leakage goes up as voltage tolerance goes down?

Isn't it the other way around? That the lower binned chips tend to run hotter because of the increased leakage and need higher voltages to sustain themselves?
[Nexus 5 General] Algotis:
I got PVS 2 here...
[Nexus 5 General] Elluel:
PVS of 3, -50mV across all frequencies except 3014MHz which is +25mV.
[Nexus 5 General] FalenDemon:
PVS 2, -75Mv on all freq., and -125mV total on 300mhz.

Отправлено с моего Nexus 5 через Tapatalk
[Nexus 5 General] Charlus97:
PVS 2 here too :)