Root Access

Bob

00:14

@CircusCat gen1 or gen2? :P

IIRC USB 3.1gen1 == USB 3.0

@Hennes USB isn't slow. USB Mass Storage is slow-ish. USB Attached SCSI is pretty fast. USB 2.0 is slow-ish. USB 3.0+ is fast. Many USB-attached flash drives are slow (and that has nothing to do with the USB protocol). Many USB-attached flash/hard drives are fast.

The only maybe-issue is the higher latency vs SATA, but even that's fairly minor.

Apparently with an SSD you're looking at something like 1ms vs 1.3ms for SATA vs USB 3.0

For a HDD the drive latency will matter a lot more.

USB 2.0... not so good on the latency front. Minimum polling intervals and shared busses there.

bwDraco

roar

Dec 4 '16 at 22:47, by bwDraco

Circus Cat

01:02

@Bob Pretty much

@Bob Milliseconds? Pfft.

Hard drives are measured in milliseconds

SSDs are measured in microseconds

Bob

@CircusCat idk, pulled the numbers off some guy running ioping

I'd test myself, but I'm not home right now and I kinda cbf :P

Circus Cat

01:31

I just googled SSD latecny

Basically tenths of a millisecond. Both over USB (3.x) and SATA in fact

Write latency is even lower on those with DRAM cache

So you're looking at 0.1 ms vs 0.08ms or something like that

Nick

hey guys, long time. Good morning!

rahuldottech

Morning folks!

Man, long day at school ahead

Nick

Same here.

I'll be getting to work on HPC.

The specs for the available system are:

**Head Node**
Processor - Intel Xeon Processor E5-2620 v4 (8 cores) * 2
RAM - 64 GB
HDD - 500 GB*2
Clock Speed - 2.1GHz
**Computing Nodes**
GPU - NVIDIA Tesla K40
Processor - Intel Xeon E5-2690 v4 (14 cores) * 2
RAM - 128 GB
HDD - 500 GB SSD
Clock Speed - 2.6 GHz
**Storage Node**
Processor - Intel Xeon Processor E5-2620 v4 (8 cores) * 2
RAM - 64 GB
Storage - 10 TB
Clock Speed - 2.1GHz

Exciting day ahead.

Bob

01:55

@CircusCat even better then!

bwDraco

Random I/O latency at low queue depths is the #1 determinant of storage responsiveness in a consumer environment.

I think I've said this before...

Jan 7 '16 at 17:53, by bwDraco

Latency and IOPS at low queue depth are the main determinant of storage responsiveness in consumer environments.

This is why caching with Optane (let alone full-fledged 3D XPoint SSDs) can make a big difference in performance, more so than a NAND-based cache.

Jun 28 at 23:10, by bwDraco

Use three Intel Optane Memory modules in RAID 0 for EXTREME performance!

Bob

02:14

"big" is ... relative

Circus Cat

@Bob TWSS!

Bob

I walked right into that one

@CircusCat OVH Sydney routing is all wonky

Also OVH London is a thing now

Circus Cat

@Bob Is there any form of routing in AU that isn't wonky?

I'm thinking of switching provider mainly to save money, and because I don't use my box all that much right now

Homeless cat is homeless

Bob

@CircusCat not-OVH seems to do fine

one network thinks shortest path from Sydney to OVH Sydney is through California and Florida

Ramhound

Anyone want to call a fake technical support number and spam them fake calls with me, lol

although I already ticked the guy off enough he disconnected the number

Ramhound

02:49

Anyone looking for a good time wasting a scammers time just call the number on the website that was spammed (it was seriously fun): superuser.com/questions/647146/… they are a scam help the world out by wasting the person's time :-) they stopped taking my calls which is a shame

The direction the insults went were very dark.....

Avery

03:08

@Nick ram is a bit low, and I'd expect bigger SSDs. Also HDD isn't SSD. Also those aren't too great xeons for hpc. Like, they are, but not top of the line.

but yeah, good machine.

Just not top of the line

rahuldottech

05:03

hey sup

I have this sudden urge to be a princess!!!

hey, someone get me a tiara, a kingdom, a carriage, a big fluffy gown, glass slippers and a castle

bwDraco

05:41

T-Mobile has started deploying band 71 (600 MHz). My phone doesn't support it so I won't get the extended coverage, but I suppose that as deployment progresses and as people upgrade their devices to those that support this new band, load will be shifted away from bands 2, 4, and 12, so I will still get higher speeds on my device. Am I right?

bgr.com/2017/08/16/…

Bob

I'm still utterly confused over how a cartoon frog apparently got associated with nazism

(see fox's latest argument, @JourneymanGeek :P)

Journeyman Geek

.... pepe?

actually there's quite a story behind that

Bob

@JourneymanGeek hm?

Journeyman Geek

06:17

essentially, someone's comic frog became a alt right meme

much to the disgust of the artist.

Fox's ava IS NOT that frog ;p

@Nick have fun and horror ;p

William Mariager

... I've just been handed a machine where explorer.exe has apparently been deleted.

How do people do that?

Journeyman Geek

very carefully....

what happens when it boots then? 0_0

Bob

@JourneymanGeek presumably you have no shell

William Mariager

06:33

Yeah, just a blank screen. Mouse and keyboard works, and I can launch various tools like regedit/cmd/etc.

Just no shell

Journeyman Geek

ooh, that's cute

William Mariager

I tried the system file check utility from Microsoft, but it doesn't want to verify the file. I guess because it simply doesn't exist.

Journeyman Geek

lol

or its a dodgy broken system to start with

and you should nuke and pave it

so, apparently there's a mouse in a class...

right next to the baking workshops...

(this isn's a pixar movie...)

so ... we're unlikely to have a supernaturally smart baking mouse. Just a fat one, and getting closed down by the health department...

William Mariager

Unlikely, but not impossible? :D

Journeyman Geek

Yes. ;p

@Bob ^

Bob

06:55

@JourneymanGeek soooo... just another day?

Journeyman Geek

Until the dancing baking mice

djsmiley2k

07:10

Once the dancing mice start... there's no stopping them

it's funny how often the head is reused

Journeyman Geek

lol

old school cell animation was hard

djsmiley2k

Nod

And arms... (in the 2nd one)

Some of the 'pre-production' work you can see at Disneyland Paris is... just wow

tho some of it does make you question all those urban legends about words in the stars on lion king and such

Journeyman Geek

lol

Well, I'm of the opinion animation got better with time, until it got worse

(stylistically more than anything else. I'm not digging the look on the new duck tales for example)

its actually closer to oldschool animation but it feels ... somewhat flat compared to what I remember

djsmiley2k

hmmm

i don't see a lot these days

a lot of the computer stuff looks... yeah, not great

but somethings have a really nice style to them

Journeyman Geek

I think the last series I watched was avatar LOK (quite a bit after it aired)

and Avatar and LOK had excellent art

William Mariager

07:24

I actually kinda like the new Duck Tales. But I agree, it's very different.

Journeyman Geek

@WilliamMariager I'm sure its excellent.

William Mariager

I ended up restoring the machine completely. Now I'm just dealing with uninstalling all the damn bloatware. I didn't think Lenovo would be this bad.

Journeyman Geek

lol

alas

William Mariager

Speaking of animations, I find most of the newer 3d animated movies very bland.

Not sure what it is.

djsmiley2k

Lenovo 'Whoops we installed malware' ?

;D

William Mariager

07:37

I don't recall my laptop coming with any bloatware.

It's a Dell so I think it must have.

djsmiley2k

it'd at least have the dell power option stuff

if not more

XPS printer

yawn

so my lead is working from home today.

so i'm kinda floating

Bob

so

if I want bash completions I suppose I should install the bash-completion package

running cloud images is annoying -_-

djsmiley2k

... what distro?

bash-completions can have multiple forms

by default it'll complete filenames etc

Bob

@djsmiley2k debian, lxc image :P

djsmiley2k

but you can add extra fun stuff

such as it knowing options for programs and such

Bob

07:46

all the fancy completion scripts need bash-completion to work

djsmiley2k

Ah then yes you'd need to install it

Bob

@djsmiley2k I was writing my own script and wondering why it wouldn't parse :P

djsmiley2k

does the magical package manager not understand deps?

ah ok

Bob

root@hel:~# cat .bash_completion
_vpn-start()
{
        local cur
        COMPREPLY=()
        cur="${COMP_WORDS[COMP_CWORD]}"

        if [ -z $cur ]
        then
                COMPREPLY=($(compgen -W "$(vpn-list | grep -ohiE "^[a-z]+" | uniq)"))
                return 0;
        fi

        COMPREPLY=($(compgen -W "$(vpn-list)" -- "$cur"))
}
complete -F _vpn-start vpn-start

:D

@djsmiley2k hm?

djsmiley2k

I thought you'd installed something and it'd missed the dep.

Burgi

08:00

morning

djsmiley2k

Morning @Burgi

please entertain me today, my Colleague isn't in.

Burgi

"dance for me bitch"

djsmiley2k

<tape recorder rewinding> "slowly"

Journeyman Geek

engadget.com/2017/08/16/… (aka, no one was going to turn up?)

Burgi

08:23

that page is really slow to respond

Bob

root@hel:~# tmux
lost server

O_O

djsmiley2k

:(

Burgi

have you checked down the sofa?

FF is having a really hard time opening the TLS connection to engadget

Nick

@rahuldottech Give me a deadline and I'll see what I can do.

djsmiley2k

@Burgi tis the NSA.

Nick

08:29

Any suggestions? We might be willing to buy better hardware. Suggestions are welcome.
Rn, we spent nearly 40k USD on the system's software stack.

djsmiley2k

erm

you can't spec up a HPC without knowing the workload.

Nick

@djsmiley2k I'm not fully aware of the projects that are running on it.

djsmiley2k

What's going to be the biggest choke point? Huge data?? === more ram, ssd's

Huge processing of small data? === more CPU

.....

Welp, see above for a 'general' guide.

Nick

As of now, I think it's not even being utilized well enough. It's a fresh system. Just a few months old.

djsmiley2k

My Son is only a number of months old too, he also is not utilised enough

Nick

08:35

We want to it to be part of the National Supercomputing Mission.
https://nsmindia.in/
In a few days, it might be possible that this low end system will be a node for the NSM.

Burgi

@djsmiley2k get him down the mines ffs!

@Nick are you looking at grid computing?

Nick

@djsmiley2k Easy fix: Teach him Kotlin and buy him a studio apartment. He'll self-incubate his own startup. #BossBaby

@Burgi I'm not sure what I'm looking at but I'm interested in cluster systems.

djsmiley2k

@Burgi Only clay mines round here... no one wants clay.

Bob

1. Connect to server via SSH
2. `ifdown eth1`
3. ???

Nick

Rn, I'm sitting in a class trying to teach me OpenMPI

djsmiley2k

08:39

huh

I edited someones question

it shows up as the 'live' version in the edit history screen

but not on the actual question?

@Bob lul

Nick

@Bob I'm using Putty.exe on Windows 10 (64 bit)

It couldn't handle my jiggly personality. Ooh, what a fatality.

Bob

MobaXterm > KiTTY > PuTTY

Nick

Noted

djsmiley2k

> reliability 255/255, txload 26/255, rxload 255/255

that rx load.

> Attainable Rate: 10132 kbits/s 672 kbits/s

And their average usage right now is... 492kbits/s

heh, there's no way this line is goin to cope with what they want to do with it.

Nick

Downloading both rn.
(1) http://download.mobatek.net/10220170312132617/MobaXterm_Installer_v10.2.zip
(2) https://www.fosshub.com/KiTTY.html/kitty.exe

If the classic KiTTy fork is any good, I'd be very happy to donate 0.03BTC to them.

Burgi

08:49

there is a FOSS grid computing system, i'm trying to find the link

rahuldottech

4 hours ago, by rahuldottech

I have this sudden urge to be a princess!!!

This was sent by my girlfriend ^

As were the next few messages after that

Plz donut judge

Nick

Sure they were.

Burgi

@rahuldottech dude, whatever...

rahuldottech

@Burgi no, seriously.

Sorry left my account logged in

Nick

But imho, to be a princess is not that hard. Just get a king/prince as your dad or husband.

Or your mom should be queen.

Look, I'm just being realistic. It's not even that hard to set up a micronation.

Ping me if you need any help on that.
... but I'm sure no one is actually serious about being a princess.

@Bob thanks. I see some nice highlighting stuff. I'll read docs later but it's refreshing to see this.

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