@bob_zim My Ryzen 7840HS box is a mini PC, with a USB4 ConnectX-3 10gig, the NAS is for bulk storage; my use case "feels amazing", when i can push stuff as fast as possible off of the daily driver, onto the NAS - the write perf counts.

I might've configured this zvol wrong; it contains a LUKS-cypto volume - i want throughput, don't need sync, and compressing LUKS/AES is kinda moot, as well as L2ARC.

Plan A: logbias=troughput, sync=default(async), secondarycache=metadata

Other ideas?

Kinda funny, how the new pope rubs some Americans "not quite right". I'm still far from calling Christians and Catholics benign or harmless. Not even the Lutherans get this seal of approval.

I'm atheist for reasons!

At least, he seems to not make things much worse.

@fox upper case MB = MegaByte, as per usual 😉

edit: for reference
upper case MB/s, MBps = Mega Byte per second
lower case Mb/s, Mbps = Mega Bit per second

edit2: 8 Bit = 1 Byte 🤓 …also, i intent to be helpful (well-meant criticism); words have meaning, and chain-gunning your thoughts, all lower caps, as fast as possible …na, mate, that's not improving efficiency! You might be typing faster, but you're losing SO MUCH meaning and nuance! That's a terrible trade-off, imho. 🖖 live long & prosper!

Removing your eye lashes in order to appear more masculine?

Who comes up with [unusual ideas] like that - is this a gaiety thing?

Like "women", shaving off their eye brows, and painting 'em back on?

Wot's rong wiz ze hoomens? 🤨

🧵 2/2 i think, i could tweak the zfs_arc_max(?) variable, decrease its value slightly, in order to have more free RAM on the NAS, for incoming buffers.

Slightly reducing the 1st level RAM ARC, in order to not burn cycles on least-used eviction algos - bigger buffer for incoming writes, which then won't need to be cached in the #NVMe SLOG?

Does that make sense - who "knows" more about #ZFS and #Linux than me?

(Yellow bar = [mostly] ZFS ARC, right?)

Today, for the 1st time, i've transferred files onto the #Linux #NAS / #HomeServer at over 700MB/s (in htop)! 🤩

Source: Ryzen 7840HS, RAM-cached(?), Samsung 990 Pro 2TB NVMe, with LUKS

Target: i5-7500, spinning #ZFS mirror, 2x SATA Toshiba MG09, consumer grade NVMe SLOG mirror, ZVOL with LUKS

Via: #SSHFS over 10gig ConnectX-3, SFP+ DAC, cheap Chinese Realtek switch, one of the CX3 runs via an ASMedia ASM2464PD #Thunderbolt / #USB4 bridge.

I'm pretty chuffed with the #crypto throughput. 🤓

Turns out, i don't need to figure out a complicated script that de- and remuxes #MKV - i just throw 'em into a hex editor and fix the (SRT-type) #subtitles like a hacker. 😎

#KDE #Okteta handles this task quite nicely; i can search and replace. In order to not mess up pointers, i did maintain the overall length of the file, though.

I started watching #TheEternaut.

In episode 3, the hearing aid battery depleted - well after the EMP hit, well after they've established that modern tech is fried, and only old cars work. 🧐

@lea @jessew 🤣 i've heard, they have pouches 😉 🍻

How much do playnes should drink per day?

@tagesschau benutzen die in Europa die selbe Methode, die Verkaufszahlen zu "ermitteln", wie in China?

In China werden Neu-Fahrzeuge an Händler verkauft und zugelassen - das zählt dann als Verkauf, obwohl niemand damit rum fährt.

edit: Quelle X&YT/SerpentZA

@jima @ironiridis @benjojo not censored in Germany

🧵 my #Thunderbolt #USB4 eNIC has an "internal" 12V supply now.

The lines are a bit long, but it totally wörks - the little booster is barely warm, even after 5 minutes of "iperf3 --bidir"

Pro tip: verify your soldering with the conductivity beeper - inverting the polarity might appear like a 50 Ohm short.

#DIY #HomeLab

Jen-Hsun #Nvidia friggen Huang only mentioned #GeForce because it was the catalyst, that made #AI things happen.

This keynote, albeit lacking #B2C announcements, was kinda interesting.

I'm so glad, this #x86 box can run #Crysis! 😉 As a #Gamer, i'm really the only one, who understands the meaning of this! 😅

edit: forgot the #Computex hashtag

I'm fairly certain, that the inventor/creator of the Graphics Interchange Format, didn't intend for MP4 video to be misrepresented as GIFs! (MP4 w/o audio ain't no GIF, for fox' sake! Someone fix #Mastodon, please!)

Also, since i have yet to be invited to have a beer with the person, i'll continue pronouncing it [GIFF], with a harsh G. 😉

🧵 n/n this might just do!

As per the ConnectX-3 spec sheet, that'd be 4.84W max.

V-in = 4V
P-out still at 12V/500mA

This DCDC can do this all day - but 500mA is the limit!

EDIT; you might want to scroll right up to the OP! This DCDC might be able to supply 12V to my "eNIC".

🧵 n/n

Remember the NIC spec sheet? → that'd be 4.84W MAX! (see also 🧵👆)

that DCDC booster gets rather hot, at 12V/500mA

too-hot-to-touch, but it might be just fine 👉 👀 img alt text

…i'm still prototyping; follow this thread 😅

🧵 1 hour later…

It's tiny, in metric.

red=5V (V-in)
yellow=12V(fixed output)

proper copper wires seem hard to salvage; 240V mains flex, that's why it's blue and brown 😅

500mA on the output is actually the MAX! The input can drop down to 3V, as per spec. (i didn't test below 4.5)

But, you're NOT getting more than 500mA on the 12V output!

🧵 5/5 …the 12V DC-DC boosters got delivered, finally!

I'm currently verifying the specs - it should do "12V at 500mA" - which should be just-about-enough for the max. 4.84W of that ConnectX-3 NIC.

Test setup: adjustable RD6006 PSU, at 5V + adjustable DL24M electronic load - BOTH have fancy displays and measurements

this is a thread 👉 🧵 😉

@Sammy8806 oof, i hope it's an S3-compatible bucket, instead of that expensive(?) original Amazon stuff. 😉

the next few months are a bit harsh on my household books, but i've just scheduled a donation to the previous PayPal address - July/August-ish (i'll ping you, when it's time, to make sure it's the right address)