Root Access

4:01 PM

data.stackexchange.com/superuser/revision/313106/405395/…

Just playing with ThrottleStop a bit and noticed that there's a huge Vcore difference between clock multipliers 33 and 34

Dropping just one bin will visibly reduce power consumption and heat output at a less than 5% cost in performance

Psycogeek

that is still like a Joke the quantity of any peoples , a few thousand here and there, which includes thousands of people who walked out years ago.

(but may come in as a newb to ask a question every once in a while anyways)

allquixotic

wow, @DragonLord, if you add AND Reputation >= 1000, you get a tiny dataset in return.

Psycogeek

What amazes me is the arrogance of people still touting how great it is, and how refined, and perfect it is , Yea perfect for a tiny sites forum :-)

allquixotic

United States is still on top.

DragonLord

data.stackexchange.com/superuser/revision/313109/405405/…

Psycogeek

4:10 PM

I would say germany is winning that one, being it is an "english" speaking site

allquixotic

Filtering out users who haven't logged in within the last year, and >= 1000 rep

the US still wins

on the flip side, if you look at >1000 rep users who have been inactive for more than 60 days, the U.S. also wins (which would make sense, since the US has the most users overall).

DragonLord

data.stackexchange.com/superuser/revision/313109/405415/…

Filtering out anyone with less than 200 rep.

Well, this would explain some of the demographic anomalies...

allquixotic

it looks like it's neck and neck between the UK and the US in terms of reputation

Psycogeek

what anomolies? that japonese and chinese singla language people are not represented well?

allquixotic

US, UK, Germany, Canada... four biggest hitters in terms of rep, # of users, # of active users, # of high-rep users, etc.

DragonLord

4:15 PM

Guess that clears up some confusion about demographics here on Super User.

There are a lot of US users here, but not as many as I had originally expected

...and as expected, India accounts for a massive portion of the user base

allquixotic

the contributions from India are basically that we get a lot of questions from a lot of users, but a few users have very, very high individual rep

DragonLord

India is booming as a technology country and not many appreciate it

Sathya is Indian, after all

allquixotic

Updated

Even the top locations for questions are the US and UK.

"India" and "Bangalore, India" both have fewer questions asked than "London, United Kingdom".

And this is with users with more than 101 rep (since you get that much for gaining >300 rep from another site) and have been active in the past 365 days.

DragonLord

4:35 PM

blog.innovaengineering.co.uk

3 PB in but sector reallocation is in full swing.

allquixotic

TB or PB?

DragonLord

Fixed.

allquixotic

> The standards body for the microelectronics industry has found that Solid State Drives (SSD) can start to lose their data and become corrupted if they are left without power for as little as a week.

> ... According to a recent presentation (PDF) by Seagate's Alvin Cox, who is also chairman of the Joint Electron Device Engineering Council (JEDEC), the period of time that data will be retained on an SSD is halved for every 5 degrees Celsius (9 degrees Fahrenheit) rise in temperature in the area where the SSD is stored.

DragonLord

...and that's what they're testing right now.

allquixotic

Yikes.

3

DragonLord

4:37 PM

> As previously, we will now conduct a mini retention test by powering the disk off for a week, and then checking that we can read back the huge file filling it correctly.

I'd consider 1.2 PB endurance the limit for the 1 TB model, extrapolating from the warranted endurance of the 128 GB model.

Psycogeek

@allquixotic YO What!, did they forget to tell us that when they were hammering over the other stuff? So do they run across it all and jolt it up every once in a while?

DragonLord

Yes, Innova Engineering is aware of this.

> The disk that was rated for 150TB of writes has now reached 20 times that and still has life in it. But there will be a cost – it is likely that the data retention period when powered off is much less than the warranted 12 months. When powered on, the controller should periodically check that all cells are readable and swap out any looking a bit dodgy.

It'll probably hold up for a bit more before failing somewhere around the 5 PB mark.

Psycogeek

When this stuff went from Barely even erasable (eeprom) at all, to Falls off on its own :-) i have had flash cards with data on them for years and years, never powered that is still clinging to life.

Brady Trainor

Another coding practice question please.

I've been using i for all my loop indices. I think I should start being more careful and use i, j, k ... to avoid collision. Or should I realize that naming indices, though less elegant, would better avoid collision.

DragonLord

@Psycogeek Do your cards receive hundreds of terabytes of writes? No.

Brady Trainor

4:49 PM

(I have subroutines inside of loops, where the subroutines themselves have loops, and so as a result I have nested loops with another i, which somehow hasn't created errors, but I should be more deliberate since I don't know why there aren't errors yet. That is, I should make sure the nested loop has a different index, or just name them. (I like elegant, so I think I'll just go with the i,j,k... approach for now.))

Psycogeek

@DragonLord No i have one that i didnt even put the data on, first time it was used instead of CDs (even long ago, because it is like 32Meg card). But allquixotic Yikes link does not say anything about terrabytes. And i still want to see what happens if they bit-bit compare everything always in these tests. because when stuff begins to fail, it isnt always saved. Without data integrity tests, and i mean for every write, it means little to me.

DragonLord

techreport.com/review/27909/…

Mokubai

Arf.

Heya peeps

DragonLord

Notice that the 840 Pro started reallocating at 600 TB. (This is a 256 GB drive.)

Psycogeek

yea write to death tests, seen that , time to move on, and do other things. like more units doing normal stuff, and Full compares of everything while it is in the process of failing. Fail based systems , should fail gracefully :-)

DragonLord

4:53 PM

I cannot imagine slamming 600 TB (extrapolated endurance) on my SSD 850 PRO anytime soon.

My drive has about 7.7 TB on it right now and it's six months old.

Psycogeek

I dont even want to look at the numbers :-) on my drive. Backup and pray .

it is either going to die, or it is not going to die, and nothing i can really do about it.

DragonLord

Thats a pretty big reason people sometimes go for a SSD over a HDD. Then again, all storage dies eventually, and if it matters to you, you ought to back it up. To me the big deciding factors ought to be price/gb and storage density, and these drives kinda suck on either count. — Journeyman Geek ♦ Nov 1 '14 at 5:19

Psycogeek

The bigger problem for me might be if it corrupted a few bits, and i BELIEVE that the backup i make of it , has all the data integrity , of the backup it is going to, so i compare it again first (when possible)

allquixotic

5:15 PM

@Mokubai *pokes a Mokubai*

Mokubai

@allquixotic startled, the Mokubai flees

allquixotic

nuu

Mokubai

@allquixotic How's tricks?

That Brazilian Guy

> the period of time that data will be retained on an SSD is halved for every 5 degrees Celsius (9 degrees Fahrenheit) rise in temperature in the area where the SSD is stored.

So, during summer in Rio SSDs will store data for.... 5 minutes?

Oh, wait, wrong image!

That's more like it

DragonLord

Wow, that's hot

I'm wondering how people cope with this sort of heat

That Brazilian Guy

5:28 PM

In one word: poorly.

Psycogeek

Looks like the One week thing for SSD retention is about "testing" a drive , and expectatations. 55*c 1 week. hundreds of weeks for normal temperature drives. All about accelerated testing, and made no specific determination that drives cannot accomplish that.

I put Mary-Ann pullitoutyourass artical as subject to the more usefull user comments that one would read below such web plies.

(as often some of the best info on drop'n'run web articals is the more factual comments from the users found below.)

Canadian Luke

6:01 PM

C or F?

Psycogeek

@ThatBrazilianGuy 50 degrees Celsius = 122 degrees Fahrenheit , the humans will not retain data in that temperature , so they wont even remember what they stored on the SSD :-)

Psycogeek

6:21 PM

the intel 750 , specs showing 3months retention at 40*C after being used a lot

"Over time, electrons on the floating gate can leak through the oxide layer back to the substrate. The more electrons leak, the more the voltage changes and the higher the chance of a bit error."
Different artical "The greater the number of program / erase cycles, the weaker the oxide layer becomes".

Temperature also affects the oxide layer. hotter temperatures enable more leakage to occur. Ideally, it is best to program at higher temperatures and store at lower, which is reflected in the JEDEC application classes.

Weird how tempertures of these types do not really effect all the oxide layers in the tons of other solid state stuff out there. And how Moisture in the air could effect conductivity and reduce charge state, and yet that was not specified .

All the articals indicate that any multibit nand would be effected way more than a SLC type, as we all know that is just because MLC store variations in each cell and slc is still "binary" Even if a charge state was reduced in SLC, thehy should be able to deduce if it was suppsed to be on or off. With MLC well :-) it could be deduced to be different bits there.

Properly written (not yet abused) and properly stored, they show that SLC should retain data for like !0 years, and MLC for 8. Which is what I was figuring

Because i have a SLC card here, that has been in regular california weather which would include about 98*F days and 40*f nights max, and it has been unpowered. since 2005 Yay almost exactally 10 years.

As far as i can tell without installing the program on a non-exisiting system, the data is all there like it was 10 years ago. (some text items i can read).

Checked a few other files, with stuff i can read and see in the resource hacker, i do not see anything out of place.

allquixotic

6:56 PM

a little rant -- make sure to at least read TFS first though if you're going to read my statement ;p

Blog bot

Blog - Stack Exchange: Stack Exchange Podcast #64: Not Recorded in Ithaca

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Welcome to Stack Exchange Podcast Episode #64, recorded in the podcast studio at Stack Exchange HQ in New York City, NY. Our podcast today is brought to you by string cheese! (It can be eaten by pulling strips from the cheese along its length and eating those strings.) Our hosts are Jay Hanlon, David Fullerton, and Joel Spolsky, joined today by guest Roberta Arcoverde.

Roberta is visiting NYC on vacation, and she’s obviously doing a terrible job taking time off because here she is at work. Roberta joined the team in March 2014 and has been working on Careers ever since. She’s curren …

Psycogeek

7:17 PM

@allquixotic I spend at least 2 hours a day outside looking for guys to beat up and women to bang , but they are all inside on thier computers :-)

allquixotic

@Psycogeek heh.

Psycogeek

terrible thing is that isnt a joke. where i live they already got a rooffull of rugrats, I need to move to a college town, and get emasculated by some jocks , and horndogged by drunken women.

Braiam

@JourneymanGeek did you changed lupin hostname?

That Brazilian Guy

8:20 PM

@Psycogeek I walk that street in the photo daily and I just want to say that I... Sorry what was it again?

@allquixotic "TFS"?

allquixotic

@ThatBrazilianGuy that's a Slashdotism for "The Fucking Summary" -- the summary of the article that the "news" post is purportedly about

there are three distinct levels of reading "TF*" that determine how thoughtful or impulsive you are as a Slashdot commenter.

If you only read TFT (The Fucking Title), you're extremely short-tempered and unable to take any time at all to process someone else's opinion before forming your own.

If you only read TFS (The Fucking Summary), you at least read the submitter's (bad, usually) summary of the article that was on the actual subject, which means you're more informed than a TFT-only person, but worse than a TFA person.

If you read TFA (The Fucking Article), you get bonus points for becoming informed on the article before you reply to it.

That Brazilian Guy

@allquixotic-the-blog-post-commenter is quite different from @allquixotic-the-chat-regular

allquixotic

I usually read all of TFS and maybe skim TFA.

@ThatBrazilianGuy Sure is.

That Brazilian Guy

!! s/extremely short-tempered and unable to take any time at all to process someone else's opinion before forming your own/on Facebook/

ChatBot John Cavil

@ThatBrazilianGuy If you only read TFT (The Fucking Title), you're on Facebook. (source)

2

allquixotic

8:25 PM

LOL

well there's a pinned message that starts with "Fuck", so I'm gonna go ahead and star that; I normally wouldn't

That Brazilian Guy

I swear by $deity, someday I'm gonna make a service that generates valid OpenGraph data, but with extremely onionlike images and titles, and when you click it's a page with a message saying "$integer users fooled".

Or maybe stuff that commenters would foam about

"Study finds out vaccines DO cause autism. Obama says it's fine". Count angry-comments-to-actual-article-clicks ratio. Write study. (???). Profit.

Psycogeek

not to worry vaccines do not cause autism, Just death riviera-maya-news.com/…

That Brazilian Guy

Being alive can cause death

Psycogeek

I'll call your death and raise you endless suffering.

Michael Frank

8:46 PM

@allquixotic heh... "meatspace"

But you do make a fantastic point in your comment.

That Brazilian Guy

Is there a simpler way than this to set up an openvpn server?

Creating a key for each client device seems tedious.

Oooooh, automatization: github.com/Nyr/openvpn-install

DragonLord

9:02 PM

0

A: My computer that is pluged into a ups reboots when the power goes down

A power supply with active PFC requires a pure sine wave UPS to function correctly on battery power. AC mains power is provided as a sine wave, smoothly alternating back and forth at a rate of 50 or 60 cycles per second. However, most less expensive UPS units provide a simulated sine wave, whic...

This is one of those things people overlook.

Michael Frank

Since when has AC been smooth? :P

tombull89

9:23 PM

2

That Brazilian Guy

> Generating DH parameters, 2048 bit long safe prime, generator 2
This is going to take a long time
....................................................................................+................................................................................+.......................................................................................................................................................................+..............................................+.....................................+....

;______;

And my connection is unusually unstable and obviously I didn't set screen or tmux.

!!shootme

> This is going to take a long time

128MB RAM

ChatBot John Cavil

@ThatBrazilianGuy That didn't make much sense. Use the !!/help command to learn more.

DragonLord

!!/

ChatBot John Cavil

@DragonLord That didn't make much sense. Use the !!/help command to learn more.

That Brazilian Guy

10:18 PM

WHEEEEEEEEEEEE

I have just successfully configured an OpenVPN server, installed OpenVPN support on Ubuntu 12.04 Network Manager, and configured and connected the client.

Canadian Luke

Good job!

That Brazilian Guy

To be fair, I cheated: github.com/Nyr/openvpn-install ;P

@CanadianLuke did things work out alright with your WP server?

Canadian Luke

Not trying it yet; need to get my server ready to be migrated first

Psycogeek

10:39 PM

New APP that gets the doctor to your home in 2 hours 7online.com/health/… . . . . right after you transfer the title of your home to them :-)

allquixotic

11:05 PM