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[#] Sat Jun 01 2024 10:37:28 EDT from Nurb432

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Backing up 4TB VM across the network, for a disk swap in a server...... Zzzzzzz      Donno why its so slow.  CPU on either box isn't taxed at all ( sub 10% ),  network is loafing @ 120mb on a 1g switch.. Every other VM is turned off to reduce bus traffic.  Drives are not high end but not super cheap either. Source is an SSD.. Destination drive on the backup server ( proxmox ) isn't the fastest around, it is a spinny disk to save cost but not slow either.   I forget the rates now, but i have tested the drives on the same hardware and it was several times write/read speed max and about ' average ' in the bigger picture.

Last time i did this it was onto an external USB as that was the largest disk i had handy ( 8tb ), so i did expect some slowness, even tho it was still USB3. But its about the same speed .. 

read: 123.3 MiB/s, write: 116.8 MiB/s   ( average update each block )

There is some compression going on, but with cpu so low, that isn't the bottleneck either.. 

Not end of world, its not like some mission critical NSA datacenter here..  mostly just my NAS and streaming front end so i can watch videos and music on the big screen...  just seems odd to me.



[#] Tue Jun 04 2024 21:03:58 EDT from zelgomer

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2024-06-01 14:37 from Nurb432 <nurb432@uncensored.citadel.org>
Backing up 4TB VM across the network, for a disk swap in a
server...... Zzzzzzz      Donno why its so slow.  CPU on either

I like to attach to those with strace -tp, sometimes it exposes stupid stuff like needless sleeps or stalls waiting on something you don't expect.

[#] Wed Jun 05 2024 07:36:02 EDT from Nurb432

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Apparently its not just me. Others have similar issues.  Something i may look into more someday and give the dev guys facts/ideas.  But will want to test on true server level hardware, eliminate any possible workstation level bus  bottlenecks.

If i ever go back to consulting, ill do some other form of backup ( perhaps images for the regular VMs and rsync for the NAS ). As convenient as it is, cant have a production box down for many hours on a restore that should not take long. ( ya, i know, 4TB isn't going to be quick, but still )



[#] Sat Jun 15 2024 16:16:01 EDT from Nurb432

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whoohoo my 3d printer still works. Not had it on since fall when i had to tear it down and rebuild the hot end.  ( filament leak. what a freaking mess )

Still not sure why my AI bot asked for access this afternoon, or what its printing... 



[#] Wed Jun 19 2024 13:04:45 EDT from Nurb432

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Well darn,the law suits aside, looks like machines with snapdragon X are still now hitting the streets, but a bit high on the $ side.

2200 bucks. While i guess its not THAT bad if you are looking for a new non-intel machine, and it is faster than the M3, i think ill pass. Not like i would have to skip meals or something to get one, its hard to rationalize that much for a toy that would rarely get used. ( even if i was still going into office, it would be 'used' .. but still just be a toy there, to use at lunch to look at email and watch video, which my 300 dollar Chromebook does just fine. 

sort of a shame, hardware we only could dream about not too long ago..  dont need it now. 



[#] Wed Jun 19 2024 16:58:07 EDT from Nurb432

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That 2.2k was for Asus, which is normally lower priced than most.  But just got an ad from Lenovo. Their base X model is 1.2k. Still more than id pay for a mostly useless toy ( if i wanted to burn cash, I'd spend it on more GPU for my AI server first ) but that is much more reasonable i think for an entry level model.



[#] Fri Jun 21 2024 09:14:59 EDT from IGnatius T Foobar

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retrogaming community that is paying well for equipment from the late

90s and early 2000s, since that is around the point in whch it becomes


If that is the case then the modern hardware makers ought to finally eliminate BIOS and 16-bit modes from their hardware. It is the current year!

[#] Sat Jul 06 2024 11:15:10 EDT from Nurb432

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Well that is cool.  OrangePI has come out with a CM4 compatible board with a real chip ( RK3588 ) and upwards of 16G ram, 256G eMMC.  Couple that with the 6 port 'cluster board' that is miniATX sized ( and it also adds 6 M.2 slots for storage ).. 

Would not be cheap ( my guess is around 1k ), but would be cool.



[#] Sat Jul 06 2024 18:47:53 EDT from Nurb432

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Tossing old stuff today, including some of the few books/magazines i kept from the great purge.

Old "computer design' Magazine ( i think IEEE, i used to be a member around that time frame ). March 1, 1987.  Headline on cover: Future Computers to use optics and neural nets.

Well, not there yet for optical computing, but they were not wrong about the neural nets, and coming optics. 



[#] Tue Jul 09 2024 10:42:07 EDT from Nurb432

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I guess this could be a rant too, but a question:

 

WTF is the point of these stupid clover style power plugs? Why cant everyone just use the old blob style?    What does it offer that is better?        Long story but had one go dead on me. No physical stress, never imagined the AC side went out.   But it did. and of course since they are different, i don't have a bunch of spares laying around.( explains my pixel book troubles from a month or so ago. .i just could not bring myself to toss it yet.. and thought id try screwing with it again. )



[#] Tue Jul 09 2024 18:19:39 EDT from zelgomer

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No idea what you're talking about. Which end is a clover?

[#] Tue Jul 09 2024 18:42:31 EDT from Nurb432

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You have the prong plug that goes in the wall like always on one end.  3 "pin" ( well 2 slot and one round, here in US at least other countries YMMV )

Normally the other end, which goes into the power supply/transformer/etc is a solid block with 3 slots. These newer things, instead of that its got round nodules and round pin holes .  They seem to be most common on external transformer type supplies  ( laptops and such, but i did see a PC with it too ) Most of mine, even laptops and these NUCs i have a plethora of, still have the old style, and i see NO advantage to changing.  It just doesn't make sense to me of why we are doing this unless there is some huge advantage im missing..

"Clover connectors" is what i see them being called, sort of silly, but i guess i do see where they get the idea from.

and i hate to do images, but:

 

 

 

Tue Jul 09 2024 18:19:39 EDT from zelgomer
No idea what you're talking about. Which end is a clover?

 



[#] Tue Jul 09 2024 18:45:33 EDT from Nurb432

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Oh all my battery charging transformers ( for those probable solar things so you can use line power ) are also the old style..      



[#] Thu Jul 11 2024 09:28:36 EDT from IGnatius T Foobar

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That's a C5 connector.  It's actually from the same series of connectors (IEC 60320) that has the C13 you're familiar with for plugging in computer equipment.

Here's a chart: [ https://www.stayonline.com/product-resources/reference-iec320.asp ]

 



[#] Thu Jul 11 2024 09:37:57 EDT from Nurb432

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its dumb :) 

Thu Jul 11 2024 09:28:36 EDT from IGnatius T Foobar

That's a C5 connector.  It's actually from the same series of connectors (IEC 60320) that has the C13 you're familiar with for plugging in computer equipment.

Here's a chart: [ https://www.stayonline.com/product-resources/reference-iec320.asp ]

 



 



[#] Thu Jul 11 2024 10:21:51 EDT from Nurb432

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Dumb as i dont see any actual valid reason for it, other than to 'make more incompatible stuff'

 

Im ok with things when it makes sense.  but i dont see any advantage over the older style 



[#] Mon Jul 15 2024 18:43:39 EDT from IGnatius T Foobar

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What older style? That's the one they agreed on to supplant all the non-standard connectors and everyone is moving to it.

[#] Mon Jul 15 2024 18:58:58 EDT from Nurb432

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From your connector link i believe: C13/C14

it was on every AC powered device ( well, ones that were not hardwired ) i have had since the 80s..  until these dumbass flowery things started appearing. That dont even take the same amount of current. 



[#] Mon Jul 15 2024 19:39:19 EDT from Nurb432

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I meant to say 3 Pronged AC.  The 2 prong dont count for this mini0rant. But not had many of them. Just a handful. 

As always, I'm ok with change if you gain something, i just dont see any gain here.  In fact, with lower current ability, i see it as a loss.  Its not smaller, and less power..  

Mon Jul 15 2024 18:58:58 EDT from Nurb432

From your connector link i believe: C13/C14

it was on every AC powered device ( well, ones that were not hardwired ) i have had since the 80s..  until these dumbass flowery things started appearing. That dont even take the same amount of current. 



 



[#] Tue Jul 16 2024 12:44:16 EDT from IGnatius T Foobar

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Right. It's the same series of connectors, and they were all ratified at the same time. C5/C6 is for devices that draw substantially less current than the 15 amps offered with C13/C14.

Something that requires less current is also likely to be physically smaller, and a C14 connector might take more space than they want to reserve for a power inlet.

*shrug* I just can't get upset about this. I'm seeing the opposite happen in my data centers -- a lot of equipment now consumes more than 15 amps so they're putting C20 inlets on the power supplies instead of C14. Now we have to swap out the PDU (power distribution units, aka power strips) for ones that have more C19 outlets on them. And providing that many C19 outlets almost always involves feeding it with 3-phase power. It's kind of a big deal.

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