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2:00 PM
the 8-bit "Deal with it" sunglasses has a special place in my heart, so I had to find an excuse to use them :D
cc @OliverSalzburg @ThatBrazilianGuy
!! s/Brazilian/BrokenHearted/
 
@ÃŁŁǫǛȉЖΦΤїҪ cc @OliverSalzburg @ThatBrokenHeartedGuy (source)
 
@Bob ah ok. Thanks man. Seriously, where from do you know which CPUs are crap? Just looking at benchmarks? Which of them properly represent the power they have?
 
Bob
@CBenni benchmarks may not be completely accurate, but they're typically good enough to give you a ballpark figure
 
ah ok
Also, we decided to keep the setup the way it is for now and carefully decide on a long-term solution over the next few weeks
 
Bob
2:12 PM
@CBenni you can also look at manufacturing time, brand, etc
Intel has been dominating AMD for years now
 
You mean, especially in the Server CPU scene?
 
Bob
45nm is pretty old (~Nehalem)
@CBenni In CPU performance across the board
8 cores implies worse single-core performance (not always, but Opteron especially has had that issue), and you're looking for single/dual performance (Terraria doesn't use more than two worker threads)
 
Ah, I wasnt sure about that
 
@ÃŁŁǫǛȉЖΦΤїҪ I had a pretty good exchange about that topic yesterday here: chat.stackexchange.com/transcript/message/16488575#16488575
 
eventhough were planning to run multiple servers, single core performance is very important for burst times
 
Bob
2:16 PM
@CBenni that's far from certain, and it really depends on how well each chip dissipates heat, how its architecture performs, clock rate, etc
But I distinctly remember that AMD's high-end chips from that time were criticised after all their 8-core marketing (rumors of the Bulldozer line beating Sandy Bridge) - turns out its single-core perf was terrible in comparison
I mean, it still beats out many older Intel chips, but it couldn't beat SDB
 
@Bob not only that, but software scheduler interleaving of different threads on a high-throughput single core (or many core with hyperthreading) really isn't that big of an overhead when your pipelines are of a middling length like Nehalem+ (it was lethal on P4 with its ridiculously deep pipelines)
in the end, raw throughput, regardless of the number of cores, wins... and raw throughput on fewer cores has the advantage that extremely serial tasks that can't be parallelized can run well, while very multithreaded tasks can still run pretty okay
 
(for embarrassingly parallel tasks you shouldn't even be using the CPU; use GPGPU)
 
Bob
The FX-9590 is from late 2013.
The i7-2600 is from early 2011.
The i7 still wins single-core perf, as far as that benchmark is concerned
 
@Bob and isn't even particularly high-end
 
Bob
2:23 PM
AMD wins on price, but not much else (for desktop/server chips; for mobile their integrated GPU helps)
 
also look at the laughable difference in TDP between those chips O_O
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ yea, 220W
How on earth...
 
Intel's single-core performance hasn't been increasing at too impressive a pace though; the 4960X is only marginally better than the 2600.
 
Bob
Here we have a chip clocked at 4.7 GHz (vs 3.4 GHz) from two years later (almost three!) on the same fab size (32nm), drawing over double the power, and it still can't win in single-core perf. And it's barely ahead in overall perf.
@ÃŁŁǫǛȉЖΦΤїҪ They're focusing more on the GPU, and I think they've run out of incremental improvement space.
 
@Bob the 4960X is Ivy-E; it doesn't have a GPU
 
2:25 PM
ow
 
Bob
They'll need another breakthrough to beat it.
 
@ÃŁŁǫǛȉЖΦΤїҪ whoa ;p
 
it has 6 cores with HT, though, which means it's awesome for multithreaded workloads
 
(@ the nick)
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ Yea, but the single cores are still a similar design - they just swap out the GPU for more cores and cache.
 
2:26 PM
@Bob true
the 4960X is kind of like having 1.5 3770Ks :p
the 5960X is going to be delicious, though. eight Haswell cores. and I do believe they're looking to exceed 4 GHz on the turbo clock freq
how on earth am I going to afford that -_-
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ $1500+
if I go for the SP3, I might just stick with the i5 model
i7's unnecessary and expensive
 
@Bob on a mobile device where you're insane if you're trying to do anything that benefits from the i7? yeah. no joke. :P
though, having more NAND is important, also it increases the performance
the larger SSD models have more NAND chips in parallel, so higher throughput
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ It's a $350 step from 128 to 256 :\
 
@ÃŁŁǫǛȉЖΦΤїҪ: bank robbery? ;p
 
@Bob meh. IF I were in the market for a SP3, I'd do that.
 
Bob
2:30 PM
and I'd need to make that step: the 128 one has 4 GB of RAM, which is laughable
another $300 step for the i7
and another $300 to go to 512
 
I've decided I don't have frequent enough of a use case for a device of that form factor to upgrade any time soon -- though I may at some point want to eliminate my Android 7-8" tablet form factor in favor of Windows 8 (Atom/x86_64, of course) -- Dell Venue, hopefully a late 2014/H1 2015 improved model
 
(and eh. Apparently one of the high end AMD video cards - R9 290 4gb is about 500 quid at my friendly local parts shop. If it is still next month, I will likely SERIOUSLY consider it)
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ Eh... $800 for a piece of Atom/2GB RAM crap? nty
 
@Bob if next year's model has 4GB, I'll take it.
being able to run Windows desktop apps is a huge benefit.
 
Bob
4 GB is barely acceptable :P
 
2:33 PM
@Bob: meh my laptop has that much
its enough
 
I've already seen what Bay Trail can do in an ultrabook form factor (my Yoga 2). it's not a bad little chip! if anything, the bottleneck in the Yoga 2 is the 5400rpm HDD.
 
Depends on your use case, but you arn't going to be opening 20,000 tabs or running VMs, no? ;p
 
the Bay Trail 8" tablets all have SSDs.
 
Bob
@JourneymanGeek not in a new/long-term device
 
although, using Bay Trail's successor (whatever that may be) with some of that sweet 3D NAND, with 4 or 8 GB of RAM in an 8" tablet running x86_64 Windows, would be quite sweet
 
Bob
2:35 PM
though I really don't need anything tablety
that cheapo tablet is sitting unused :P
SP3 might replace the laptop. I have my phone. Something in between? I have no idea what I'd use it for.
 
I've been using either my phone or my desktop lately. too tired for the desk? meh, grab phone, lay in bed
could be that I can just forget about all form factors except desktop and phone, and go phablet
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ Yea, even the laptop isn't seeing much use now
 
Note 4 is definitely an enticing prospect, as is the LG G3, for that reason
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ Problem is pocket space
 
@ÃŁŁǫǛȉЖΦΤїҪ: Phablets are, to me, an oddball form factor.
 
Bob
2:36 PM
@ÃŁŁǫǛȉЖΦΤїҪ And Android, too! :D
Who doesn't love a versatile platform?
 
@Bob Note 4 is bigger. the LG G3 is still .5" larger screen (diagonal) than what I have, so that'd be a definite upgrade in readability.
 
hello
 
oh and from 720p to 1440p O_O
 
(also, dogs don't have pockets. I don't really want to get too much bigger)
 
Bob
@JourneymanGeek I used to think that too. Lately, I've been considering them a tablet replacement more than something in between.
 
2:37 PM
@ÃŁŁǫǛȉЖΦΤїҪ: at some point though, increased pitch density gets pointless ;p
 
Bob
@JourneymanGeek ...where do you keep your phone? :O
 
is it possible to download videos from the internet, but first compress them (not there quality, the other compression)....
 
@JourneymanGeek there are still some aspects of the human eye that can see well beyond 1440p.
 
videos have direct link hosted on coursera
 
@Bob: There's a good reason I didn't usually carry around my phone for ages ;p
 
Bob
2:37 PM
@AwalGarg you need a cooperating server somewhere that will compress in a format you recognise
 
@Bob: clearly, I hide it in my bandana.
 
Bob
but lossless compression on videos is nearly useless
 
@AwalGarg "not their quality, the other compression" --> you mean lossless compression, like zip or 7zip?
 
@ÃŁŁǫǛȉЖΦΤїҪ yep
 
that won't do you any good... in order to reduce the file size of a video, you must compromise on quality. it is impossible to compress it further without losing quality.
 
2:38 PM
wait, what is that username?
 
it comes down to entropy
 
umm, ok. I am ready to compromise on quality.
 
lossy video is already extremely high entropy (the data looks effectively random); a lossless algorithm can't improve upon that
 
Bob
@AwalGarg you're better off transcoding in a lossy format to slightly reduce quality in an unnoticeable way
 
@AwalGarg its ÃŁŁǫǛȉЖΦΤїҪ of course.
 
Bob
2:39 PM
lossless will save you, at best, maybe 0.5%-1% space
it might even make it bigger
 
@Bob PPMd on ultra that requires 16 GB of virtual address space and 16 hours to compress, could save about 500 MB on a 4K AVCHD feature-length movie that runs ~50 GB :P
 
half the present quality is fine.. now is it possible (and feasible?)
 
Bob
@AwalGarg then what you need is either the original host to compress it more, or you'll need someone else to download, compress (transcode) and make it available for you to download from them
you can't do it remotely by yourself from an uncooperating host
 
hmm, I was hoping of some internet service which can do it.
 
@AwalGarg what Bob just said is correct -- you'll need a server or someone else to first download the regular (full-size) video, then transcode it into a lower bitrate and/or better codec
 
2:41 PM
any internet service (free) which does this?
 
Bob
@AwalGarg there may be one that exists; I do not know of any.
 
okkk
 
Bob
but it's unlikely to be free, if it does exist
 
is it possible to upload video to youtube from link?
 
if the source video is uncompressed for some reason, or compressed in an extremely old/inefficient codec, you might be able to lose very little quality by transcoding to a modern codec like VP9 or H264 or H265
@AwalGarg no
 
Bob
2:41 PM
transcoding is an expensive (CPU/GPU, and therefore power, and therefore money) operation
 
@ÃŁŁǫǛȉЖΦΤїҪ :(
 
the cheapest way I can think of is to rent an on-demand Amazon EC2 server for an hour or two (it'll run you between a few cents to a few dollars depending on how big of an instance you get), download the video, and use gstreamer to transcode it
 
ok, btw, is that.... wait. allouixotic?
 
then host the result over nginx for you to download
 
Bob
@AwalGarg Yes, that is @allquixotic with a new name :P
 
2:42 PM
@ÃŁŁǫǛȉЖΦΤїҪ ^
 
LOL
thanks cavil
er, that's Cavil-from-Australia :P
he's just a copy ™
cc @MichaelFrank -- Cavil has actual copies of himself running in parallel :D
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ he does? :S
 
@Bob well. one in Germany; one in Australia, unless you patched Cavil on the dedi
 
Bob
(the extra plugin is just pingallquixotic.js on your server)
@ÃŁŁǫǛȉЖΦΤїҪ the latter
 
2:44 PM
1 hour ago, by Bob
@ÃŁŁǫǛȉЖΦΤїҪ that can be done later; quick 'n dirty hack coming up
 
Bob
if I were to run another bot, I'd just run it under my own user
 
oh ok I thought you were running it in your browser
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ oh, I was talking about git... or was it the suggestion of a more general plugin? one of those.
 
So... if he dies, he gets replaced by another one from the resurrection ship?
 
@Bob gotcha. cool
@JourneymanGeek exactly
 
2:44 PM
hmm, we can send files to google drive from web with a chrome plugin. now is it possible?
 
(I need to rewatch that series)
 
it seems drive uses the same player like youtube
and youtube can compress and let download through 3rd party services
 
Bob
eh, you can try it
 
@AwalGarg is that a server-side upload where Drive goes and gets the file, or does that Chrome plugin just download the file to your system and then upload it to Drive? I highly suspect the latter.
 
@ÃŁŁǫǛȉЖΦΤїҪ I highly suspect the former, but I am not sure. have done that once, and went pretty fast.
wait, I'll post the extension link here.
 
2:47 PM
@AwalGarg generally, big companies like Google don't give random internet people the capability to direct their web servers to perform arbitrary HTTP Requests
that can be a huge security hole and/or legal liability
 
there must be a secure api to do that, if possible
can someone please check and confirm? I am not that an expert in such things.
thnx in advance. :)
 
@AwalGarg it's trivial to check it yourself -- download Fiddler, turn on capture traffic, and watch your browser perform the HTTP request to start downloading the movie from coursera when you try "Save to Google Drive"
> teach a man to fish
 
@ÃŁŁǫǛȉЖΦΤїҪ hmm, oh right. chrome dev tools allow to see http requests. good catch bro :)
 
Bob
is it just me, or is there literally zero difference between the middle and right ones?
 
2:50 PM
and he will spend the whole day in a boat drinking beer?
 
Bob
 
@JourneymanGeek naaah
 
@Bob: mobile broadband?
 
@Bob last one has dell wireless etc.
and the e value code is different as well.
 
Bob
Oh, up at the top -_-
thanks.
I was looking at the detailed specs.
 
2:55 PM
crap, its client side
 
@Bob (I was up from my desk when you asked; I came back, can't see the image (blocked)), but from the responses of others I can safely say it's just you :D
@AwalGarg I couldn't have imagined it working any other way :)
 
hmm, any other idea?
 
aside from the ones I've already told you? no.
 
ok thanks :)
 
if you have a raw http url that can be downloaded without having to have a particular cookie, i might be able to do it on my server real quick
tinyurl preferred since I'll have to key it in on my phone's onscreen keyboard
!! s/tinyurl/bitly/
 
2:56 PM
@ÃŁŁǫǛȉЖΦΤїҪ bitly preferred since I'll have to key it in on my phone's onscreen keyboard (source)
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ heck, I'd do it but I can't remember any ffmpeg commands :P
 
it downloads automatically for me, but I don't think its possible for everyone. you have to be a member maybe.
 
@Bob I AM THE GSTREAMER WIZARD!!!!!!!!!!!!!!! don't need no fucking ffmpeg
 
Bob
2:58 PM
@AwalGarg yea, requires account
@ÃŁŁǫǛȉЖΦΤїҪ even less idea of how to use that :D
 
crap.. now even if an internet service is there, I am screwed any how.
 
@AwalGarg not really :D
give me all your cookies for *.coursera.org :D
I promise I won't use it to fail you for your course :D
 
@ÃŁŁǫǛȉЖΦΤїҪ how?
oh ok. your pm please
 
Ash
after latest kernel image update in my debian machine , my keyboard and mouse seems to be stuck.
uname -r gives 3.2.0-4-486.
 
@AwalGarg well, you can examine any http request you make to class.coursera.org, and grab the Cookie: http header
 
Ash
3:00 PM
and dpkg --list | grep "linux-image*" gives

ii linux-image-3.2.0-4-486 3.2.60-1+deb7u1 i386 Linux 3.2 for older PCs
rc linux-image-3.2.0-4-rt-686-pae 3.2.41-2 i386 Linux 3.2 for modern PCs, PREEMPT_RT
ii linux-image-486 3.2+46 i386 Linux for older PCs (meta-package)
there is no debian with older kernel listed in grub.

/var/log/apt/history.log states :

Start-Date: 2014-07-09 13:06:10
Commandline: apt-get upgrade
Upgrade: linux-image-3.2.0-4-486:i386 (3.2.57-3+deb7u2, 3.2.60-1+deb7u1), libvlc5:i386 (2.0.3-5, 2.0.3-5+deb7u1), vlc-nox:i386 (2.0.3-5, 2.0.3-5+deb7u1), vlc:i386 (2.0.3-5, 2.0.3-5+deb7u1), vlc-plugin-notify:i386 (2.0.3-5, 2.0.3-5+deb7u1), vlc-plugin-pulse:i386 (2.0.3-5, 2.0.3-5+deb7u1), vlc-data:i386 (2.0.3-5, 2.0.3-5+deb7u1), libvlccore5:i386 (2.0.3-5, 2.0.3-5+deb7u1)
 
@ÃŁŁǫǛȉЖΦΤїҪ yeah... you are so kind.
wait a sec please
 
Ash
how do I degrade to my old kernel ?
 
@Ash sorry, I'm at 100% CPU right now, and my kernel is compiled in non-preemptive mode
move to the end of the work queue please
 
Ash
@ÃŁŁǫǛȉЖΦΤїҪ clippy ??
hows that ?
 
@Ash :D
you've hit an easter egg in SE chat
 
Ash
3:03 PM
for the first time :)
 
crap, @HackToHell, @Bob any of you remember that service that lets someone email you if they have a link you give out, without giving out your actual email address?
 
@ÃŁŁǫǛȉЖΦΤїҪ ok got it. i don't know how to send it you.
 
i think @HackToHell is the one who gave it to me originally
 
4 mins ago, by ÃŁŁǫǛȉЖΦΤїҪ
I promise I won't use it to fail you for your course :D
I promise I won't spam your email :P
anyways, you can encode your email sure
this is a public chat room.
 
meh... ok
smcnam
and I use that fairly famous email service by Google
you know, the one that starts with "g" and ends in "mail"
 
3:05 PM
haha... on my way to compose
done
you can remove that now
 
@AwalGarg that's a screenshot, and the values are cut off. I can't use that.
 
@ÃŁŁǫǛȉЖΦΤїҪ no, its text
see it... I am sure its text. I can select it
 
OH
O______O damn it looks like a screenshot!
 
@ÃŁŁǫǛȉЖΦΤїҪ to me too
 
the values are still cut off though :S
 
Bob
3:08 PM
@ÃŁŁǫǛȉЖΦΤїҪ uh, one of the hundreds of single use email addresses?
 
@ÃŁŁǫǛȉЖΦΤїҪ wait... trying again
 
wait i may be able to make the column larger using inspect element
 
Ash
@ÃŁŁǫǛȉЖΦΤїҪ do I get aged ?
 
crap, they have a CSRF token
though oddly enough the CSRF token appears to be empty... or I'm not reading the table right
well the new email helps
 
yay!
 
3:17 PM
@AwalGarg it downloaded 15 MB.
 
@ÃŁŁǫǛȉЖΦΤїҪ after conversion you mean?
 
and after conversion?
 
haven't done it yet :P
 
ok. I am patient enough :)
don't kill me for the next mail. please feel free to skip any number of them if you aren't able to convert all. Thanks again.
 
3:19 PM
any number of them? there are more than one?
 
@ÃŁŁǫǛȉЖΦΤїҪ ummm. ok. then just ignore the next mail
:P :P
 
good lord that's a lot... wow... if I were at my PC at home it'd be no problem but I'm doing this on a phone... maybe I'll get gateone going again on my server :S
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ want me to chuck them in a text file or something?
(forward URLs to me => I'll chuck them in a file somewhere on your dedi)
 
@ÃŁŁǫǛȉЖΦΤїҪ sure. I don't wanna push you outta your comfort zone.
 
@Bob i just need my GateOne instance up and running on my box :P
maybe we could do it on the superuser VM?
oh. you need root there. damn
 
Bob
3:24 PM
:S
@ÃŁŁǫǛȉЖΦΤїҪ I can set it up on my server and you can tunnel through that? Wait, does it even allow tunnelling?
shrug
 
@ÃŁŁǫǛȉЖΦΤїҪ what is this?
 
@jokerdino hi man... long time.
 
just a min; once I get through on my box with an actual keyboard I'll be good to go
 
@Bob hey, aren't you the one who came in the JS room to enquire about JS and base64 encoding and all? and wasn't it because of @ÃŁŁǫǛȉЖΦΤїҪ's username?
 
Bob
@AwalGarg oh hi there :P
 
3:29 PM
SE has so much helpful people. I love this place.
 
Bob
it was while I was modifying the bot so I could use @allquixotic (e.g. on mobile) and still ping him
 
@ÃŁŁǫǛȉЖΦΤїҪ ^
 
Bob
just used plain URI encoding, then thought B64 would be shorter, then discovered JS can't do that -_-
 
hahaha...
you guys are awesome.... genius.
 
Did I miss something?
 
3:31 PM
i know.
I am asking my friends if having a name like that is bannable.
 
@jokerdino why would it be?
 
yes
 
woot, got in
 
yipee!
 
@all, how's things?
 
3:38 PM
!!itsworking
 
downloading all the videos now
 
wohooo
@ChatBotJohnCavil such a nice clip... love it
 
it looks to be several hundred megabytes total
i have to ask though why do you want these downsampled/compressed further?
bandwidth limits?
data caps?
 
@ÃŁŁǫǛȉЖΦΤїҪ yep... and very strict ones.
we, in here don't have much exposure to the tech.
 
3:40 PM
hope your cookie doesn't expire -- i have like 70% of the vids DLed, a lot of it is getting redirected to cloudfront lol
> Downloaded: 18 files, 323M in 1m 26s (3.76 MB/s)
 
thats a pretty huge speed man!
is it normal in your area?
 
this is my dedi in germany
 
dirndl?
 
dedi?
 
3:47 PM
nice :)
 
> gst-launch-1.0 -v filesrc location=66 ! decodebin ! fakesink

(gst-plugin-scanner:19319): GStreamer-WARNING **: Failed to load plugin '/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstchromaprint.so': libavcodec.so.53: cannot open shared object file: No suc
h file or directory

(gst-plugin-scanner:19319): GStreamer-WARNING **: Failed to load plugin '/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstopencv.so': libavcodec.so.53: cannot open shared object file: No such fil
e or directory

(gst-plugin-scanner:19319): GStreamer-CRITICAL **: gst_structure_new_empty: assertion `gst_structure_validate_
-_- the first few lines are very worrisome
but it looks like it found a quicktime decoder anyway
how small do you need them?
 
@ÃŁŁǫǛȉЖΦΤїҪ as much as possible
and I am pretty sure I have seen that error before
 
it's 323 MB. I can make them unusably tiny
 
it doesn't do any bad, to my knowledge.
 
like 5 MB total -- but you would see about 3 pixels
 
3:50 PM
@ÃŁŁǫǛȉЖΦΤїҪ umm, just enough that I can see them.
 
really need to know how small you need them -- 50% reduction? 80%? the more, the worse quality
I mean... I can make them SUPER small but I don't know what your threshold for bandwidth usage is, vs. watchability
 
wait. I'll check it with course instructor
there are pretty clear as of now, so yep 50% reduction is fine
 
so you're ok with downloading ~150 MB?
 
hmm, I think I can do it. will do it in parts though.
 
user image
3
 
3:52 PM
50%, lock it :)
 
Bob
 
you want vp9 codec?
can be viewed in chrome and vlc, not sure what else, it's pretty incompatible
or i can just continue using h264 and reduce bitrate
 
if it can be viewed in vlc, and can reduce size, then do it
i think I know about it... isn't it the one offered by google?
 
Bob
@ÃŁŁǫǛȉЖΦΤїҪ works in FF too
 
@ÃŁŁǫǛȉЖΦΤїҪ yeah
I found it in some shady site
@ÃŁŁǫǛȉЖΦΤїҪ Pretty much every popular video in ytb uses vp9 in Chrome
 

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