Dr. Cuff

@forbiddenunix.com

220 Followers 122 Following

unix whisperer, hpc apprentice cmo for @micheleclamp.com & @chromamagic.com formerly big dot edu, etc. https://linkedin.com/in/drcuff 🇬🇧 / 🇺🇸

Thorazin Thorazin commented 2 days ago Thorazin 2 days ago So there is no official way to know when ZFS is ready for Fedora 44 other than trying and see what happens? tonyhutter tonyhutter commented 2 days ago tonyhutter 2 days ago Contributor So there is no official way to know when ZFS is ready for Fedora 44 other than trying and see what happens? Your best bet is to look for a Fedora 44 entry in our repos. If there's an entry in there it means the RPMs are out: http://download.zfsonlinux.org/fedora/ Thorazin Thorazin commented 2 days ago Thorazin 2 days ago So there is no official way to know when ZFS is ready for Fedora 44 other than trying and see what happens? Your best bet is to look for a Fedora 44 entry in our repos. If there's an entry in there it means the RPMs are out: http://download.zfsonlinux.org/fedora/ That's kind of what I was looking for, thank you.
Weather app showing 8mph wind from the west.
(AI cut and paste from photo) Due to a nationwide penny shortage, we'll be rounding cash change to the nearest 5 cents. HOW ROUNDING WORKS: Ends in 1¢ or 2¢ → round down to 0¢ Ends in 34 or 4¢ → round up to 5¢ Ends in 5¢ or O¢ → exact change given Ends in 64 or 7¢ → round down to 5¢ Ends in 84 or 9¢ → round up to 10¢
Jerry. Jerry. Jerry. Jerry. Jerry!!
70 degree weather with snow warning.
Ages of Linux users.
root@basement:~# compsize -x /LACIE/ Processed 2598 files, 166519 regular extents (201597 refs), 17 inline, 171631 fragments. Type Perc Disk Usage Uncompressed Referenced TOTAL 99% 985G 989G 738G none 100% 984G 984G 733G zstd 24% 1.3G 5.4G 5.4G root@basement:~# sudo btrfs filesystem defragment -r -czstd /LACIE/ root@basement:~# root@basement:~# compsize -x /LACIE/ Processed 3383 files, 3238851 regular extents (3246849 refs), 18 inline, 306995 fragments. Type Perc Disk Usage Uncompressed Referenced TOTAL 85% 765G 892G 892G none 100% 663G 663G 663G zstd 44% 101G 228G 228G root@basement:~# mount | grep LACIE /dev/sda on /LACIE type btrfs (rw,relatime,compress=zstd:3,space_cache=v2,subvolid=5,subvol=/) root@basement:~# df -H /LACIE Filesystem Size Used Avail Use% Mounted on /dev/sda 2.1T 826G 1.2T 42% /LACIE root@basement:~#
Spam about AAA with gardening tips.
Screen capture of a contraption that plays radio.
Added a magic string to @forbiddenunix.com profile
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"we are all drowning in despair" followed me....
code for ptpd.c // frankly don't care. Because we have to.
Can high-temperature superconductors transform the power infrastructure of datacenters? By Alistair Speirs, General Manager of Global Infrastructure Marketing
MacOS update filled the disk
Fantastic - that's exactly the result you wanted! A few observations from your iotop output and summary: V What's working perfectly 1. Disk I/O is fast • Writes around 106-133 MB/s, reads around 1.6 MB/s in background - shows your RAID is handling parallel writes fine. • Full-stripe sequential writes are optimized (2 MB blocks). 2. Network is the bottleneck • SMB/Time Machine writes are limited by 1 Gbit/s (~125 MB/s max). • Your disk can do more than the network allows - which is ideal; disks aren't the bottleneck anymore. 3. Multiple SMB threads are saturated • Shows Time Machine parallel streams are writing evenly across the array. 4. RAID5 is stable • No degraded or rebuilding state. •Stripe cache, read-ahead, and max_sectors tuning are behaving as expected. • Notes from iotop • Your tuser smbd threads show multiple ~17-18 MB/s writes each, which adds up to the total network-limited speed. worker and systend-userwork threads are idle - no background RAID reshaping or high disk churn. • Disks are healthy, nothing spiking unexpectedly. • Takeaways No more disk tuning needed; you've hit the realistic limit of your 1 Gbit/s network. •You could increase speed only by: 1. Using 10 Gbit Ethernet 2. Adding more disks and RAID10 (hardware limit permitting) 3. Using multi-queue-aware SMB clients (Time Machine already seems multi-threaded) • Your previous stripe/stride and chunk optimizations paid off - no RMW penalty, sequential writes aligned. * Self-pat moment RAID5 tuned 7 Filesystem stride aligned Read-ahead, stripe cache, max sectors tuned SMB/Time Machine fully saturating network V Your disks are happy, the array is stable, and you're network-bound - the best kind of bottleneck
GoDaddy bullshit.
Results from people cloud
Since acquiring the ai.com domain in 2025, a transaction believed to be the single largest domain purchase in history, Marszalek has been steadily building out its Al-dedicated offering and team. ai.com will officially launch its new agentic Al product on February 8, 2026 alongside its commercial broadcast premiere during Super Bowl LX on NBC. "We are at a fundamental shift in Al's evolution as we rapidly move beyond basic chats to Al agents actually getting things done for humans," said Kris Marszalek, Founder and CEO of ai.com. "Our vision is a decentralized network of billions of agents who self-improve and share these improvements with each other, vastly and rapidly expanding agentic capabilities and accelerating the advent of AGI."
ai dot com Super Bowl.
Unix raised me. It taught me that: • Errors are your fault, not the system's • Silence means success • Documentation is optional if you're "supposed to know" • Names don't explain things; history explains things • And if you destroy your filesystem, that's called "learning" Unix is the parent who hands you a chainsaw, says "be careful," and leaves the room. If you come back with all your fingers, you're competent. If not, well... you shouldn't have been running dd as root. So no, it didn't hurt me. It just taught me discipline, humility, and how to read source code like scripture. Which, I admit, sounds a lot like trauma.
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DNS Outages DNS issue Total website blackout Two million 404 errors It was always DNS. If there's a massive service outage, blame DNS. Earn the "It was always & badge.
Today, I installed a software that only works if the compiler release version has an even number...
google search for deep religious questions, storage formats suggested.
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Me and Freddy the Fredom Thrower. Snow.
eBay options to buy a new : (old) PlayStation2 keyboard. Nearly $200 secondhand.
Indoor cycling. 25miles, 1hr 15min, 19.8mph
SHREWSBURY MA DISTRIBUTION CENTER January 10, 2026, 9:32 pm Departed USPS Regional Facility SPRINGFIELD MA DISTRIBUTION CENTER January 10, 2026, 5:34 pm Arrived at USPS Regional Facility SPRINGFIELD MA DISTRIBUTION CENTER January 10, 2026, 3:29 pm In Transit to Next Facility January 10, 2026, 10:32 am In Transit to Next Facility January 10, 2026, 7:29 am Departed USPS Regional Facility WARRENDALE PA DISTRIBUTION CENTER January 10, 2026, 6:22 am Arrived at USPS Regional Facility WARRENDALE PA DISTRIBUTION CENTER January 10, 2026, 4:02 am Departed USPS Regional Facility PITTSBURGH PA DISTRIBUTION CENTER January 10, 2026, 3:53 am Arrived at USPS Regional Facility PITTSBURGH PA DISTRIBUTION CENTER January 9, 2026, 7:19 pm Arrived at USPS Regional Facility SHREWSBURY MA DISTRIBUTION CENTER January 9, 2026, 11:39 am
Talking about infiniband.
Start strong badge. Limit 250. Earn on new year day. I’ll be over 300 years old
AI generated image. “Make me an image of “insert more credits to continue?” Screen found on old 16bit games arcade. Add player 1 and player 2 options. “
Hello Thank you for your order. We would like to confirm whether you will use this product before sending out the package? Our product only includes the cable, and does not include tutorials or programs for use. Thank you for your understanding. Waiting for your reply. Regards 6:53 PM Thanks for asking. I'm a computer scientist and this is for a research project, thanks very much for asking the question!
Maximizing telnet Usage Telnet is both a program and a protocol. telnet (the program) uses telnet (the protocol) to provide an interlace to remote logins to other machines on the network. A telnet session provides a "virtual" character-based terminal in which the user can type commands and other text and also see the output from processes on the remote machine
Master the day-to-day operation of UNIX! • Addresses All UNIX Versions and Shells! Inside UNIX
jcuff@midnight kcache % sudo /usr/bin/kmutil load -p /System/Library/Extensions/AppleThunderboltRDMA.kext Authenticating extension failed: Kext com.apple.driver.AppleThunderboltRDMA v0.0.1 in codeless kext bundle com.apple.driver.AppleThunderboltRDMA at /System/Library/Extensions/AppleThunderboltRDMA.kext: Authenticating extension failed: Bad code signature jcuff@midnight kcache % jcuff@midnight kcache % ipsw kernel extract ./kernelcache.decompressed com.apple.driver.AppleThunderboltNHI • Created com.apple.driver.AppleThunderboltNHI jcuff@midnight kcache % jcuff@midnight kcache % jcuff@midnight kcache % ipsw kernel extract ./kernelcache.decompressed com.apple.driver.AppleThunderboltRDMA Usage: ipsw kernel extract <KERNELCACHE> <KEXT> [flags] Aliases: extract, e Flags: -a, --all Extract all KEXTs -e, --arch string Which architecture to use for fat/universal MachO -h, --help help for extract --output string Directory to extract KEXTs to Global Flags: --color colorize output --config string config file (default is $HOME/.config/ipsw/config.yaml) --no-color disable colorize output -V, --verbose verbose output ⨯ failed to parse KEXT com.apple.driver.AppleThunderboltRDMA: fileset does NOT contain com.apple.driver.AppleThunderboltRDMA
Abandoned Intel site slated for 950,000-square-foot industrial campus By Paul Hopkins Reporter HUDSON - The Hudson Planning Board will hold a public hearing Dec. 16 on a new plan for the former Intel campus on Reed Road. Town officials say the property owner, National Development, has filed an application for site plan review, which launches the formal permitting process. A news release from Hudson says "the assessed future tax revenues of this redevelopment project for the town is valued at $3 million annually." National Development will propose a new industrial campus of about 950,000 square feet. There is no tenant identified yet. The first Planning Board hearing will be Dec. 16 at 7 p.m. in the Hudson High School auditorium. The meeting will be streamed live by HUD-TV. Site plan review will encompass "a comprehensive evaluation of several key technical and operational components," according to the town. That will include transportation and traffic impacts, noise attenuation strategies, and stormwater management. Intel, once the largest taxpayer in Hudson, has vacated the property over a period of years. The 148-acre site lies between two residential areas, Westridge Condominiums and The Villages at Quail Run. Abutters rallied to shoot down a proposal to build a warehouse in 2022; no tenant had been identified. In June, Town Manager Thomas Gregory
Intel shares fall after Nvidia reportedly declines to move forward with 18A manufacturing process Dec 24, 2025 7:53 AM ET INVIDIA Corporation (NVDA) | Gaurav Batavia, SA News Editor Intel shares fell 3% in premarket trading on Wednesday after Nvidia (NVDA) evaluated manufacturing its chips using Intel's (INTC) 18A production process but did not move forward, Reuters reported. Chip designers Nvidia (NVDA) and Broadcom had run manufacturing tests with Intel (INTC) earlier in March. Intel's 18A chip technology has since faced challenges, as initial customer tests have led to dissatisfaction and reduced demand, the news outlet added, citing two people familiar with the mat-ter. Nvidia (NVDA) shares were fractionally lower in premarket trading.
GPT Do this photo in the style of the “Bostoo Yook Yarters” a baseball team. Invent logo, color, Boston style. But make it proper Yook Yarters!
grepping for rdma.