riobard

7 ms·

31.
by riobard 1y ago
The assumed mentality of “being flexible” is the very reason WireGuard was created to fight against in the first place, otherwise why bother? IPSec is already standardized and with wide-spread hardware implementation (both FPGA and ASIC) an
32.
by riobard 1y ago
Those pesky WD bridges usually support USB Bulk Storage only but not UASP, resulting in worse performance and higher CPU usage. Also HDD power management is often complicated by the bridge chip sometimes intervening. Not recommended for lon
33.
by riobard 1y ago
Yeah but those are pretty dated. I was under the impression those old Ampere servers are not efficient compared to modern EPYC anymore. So I’m wondering what their current generation of arm64 servers look like :p
34.
by riobard 1y ago
What ARM64 machines are you using and what are they used for? Last year you were announcing Gen 12 servers on AMD EPYC ( https://blog.cloudflare.com/gen-12-servers/ ), but IIRC there weren’t any mentions of ARM64. But no
35.
by riobard 1y ago
Thank you very much for the clarification! :)
36.
by riobard 1y ago
Thanks! The Cloudflare blog article explained GSO pretty well: application must send a contiguous data buffer with a fixed segment size (except for the tail of the buffer) for GSO to split into smaller packets. But how does GRO work on the
37.
by riobard 1y ago
What mail clients do you recommend that make mailing list UI/UX tolerable?
38.
by riobard 1y ago
Can someone explain how UDP GSO/GRO works in detail? Since UDP packets can arrive out-or-order, how does a single large QUIC packet be split into multiple smaller UDP packets without any header sequence number, and how does the receivi
39.
by riobard 1y ago
Unfortunately ads and tracking go hand in hand: without tracking, targeted ads are much less effective. If everything else stays the same, you'll just get more, bigger, and flashing ads to compensate for the inefficiency, like what you
40.
by riobard 1y ago
I'd certainly hope ISP follow your reasoning. BTW that was why I put my WireGuard server on port 443, hoping it would avoid the tragic QoS…
41.
by riobard 1y ago
The paper is somewhat title-bait: most of the data flow and privacy concerns (section 3) isn't caused by eSIM but by MVNO and business practices which applies to physical SIM as well. Additionally, it's expecting too much from _tr
42.
by riobard 1y ago
> Never had a single problem with it (but increased latency because of weird routings around the world). UDP (which WireGuard uses to encapsulate your data) traffic is often de-prioritized. You won't notice it when the network load
43.
by riobard 1y ago
Apple’s pricing structure is: X SE < X < X Air < X Pro.
44.
by riobard 1y ago
Ah yes! Port multiplier is usually the source of most evils (after flaky bridge chips). Unfortunately enclosure makers seldom reveal the internal topology and usually only test again Windows, and Linux kernel has a long blacklist of bad bri
45.
by riobard 1y ago
The issue with flaky bridge chips wasn't usually about data integrity——it works fine most of the time, i.e. data written got read back correctly. But often after extensive use, `dmesg` would complain about problems when talking to the
46.
by riobard 1y ago
Sounds great! Do you mind share the model of the enclosures and what bridge chip is used inside?
47.
by riobard 1y ago
Have you researched the USB-SATA bridge chips in the enclosures? Reliability of those chips/drivers on Linux used to be very questionable a few years ago when I looked around. Not sure if the situation has improved recently given the p
48.
by riobard 1y ago
Not all Intel Macs. Only those without T2 chip, as T2 acts as the storage controller.
49.
by riobard 1y ago
Would four 2TB SSD be more or less expensive than one 8TB SSD? And also counting power efficiency and RAID complexity?
50.
by riobard 1y ago
I’ve been always puzzled by the strange choice of raiding multiple small capacity M.2 NVMe in these tiny low-end Intel boxes with severely limited PCIe lanes using only one lane per SSD. Why not a single large capacity M.2 SSD using 4 full
51.
by riobard 1y ago
If they do trust their hardware, APFS won’t need to checksum fs metadata either, so I guess they don’t trust it well enough? Also I have external drives that is not Apple sanctioned to store files and I don’t trust them enough either, and
52.
by riobard 1y ago
APFS checksums only fs metadata not user data which is a pita. Presumably because APFS is used on single drive systems and there’s no redundancy to recover from anyway. Still, not ideal.
53.
by riobard 1y ago
Can we please stop using request/day as a perf metric?
54.
by riobard 1y ago
Stop spreading misinformation. > You still need a stateful server to assign IPv6 addresses for most use cases, through DHCPv6. SLAAC doesn't even give you a DNS server yet. DNS now comes in Router Advertisement per RFC 8106. No need
55.
by riobard 1y ago
The 72 PPI number was used back in the days when typical resolution was like 640/800/1024 horizontal pixels and display less than 20 inch diagonal. It was the Golden Age of pixel art. Apple had been experimenting with the idea of
56.
by riobard 1y ago
I don’t know any Mac support that.
57.
by riobard 1y ago
That's the tricky question. It doesn't have one (or it has many???) It's the same LG panel (LM315STA-SSA1) used by Dell's ugly-as-hell U3224KB, but in an all-aluminum case and stand weighing about 9KG. Assembled in China
58.
by riobard 1y ago
That's only one of the reasons. 8K 10-bit RGB requires ~60Gbps while HDMI 2.1 can carry at most 42Gbps. So video has to be compressed somehow and it's mostly likely YCbCr with subsampling (coz that's how most video is encoded
59.
by riobard 1y ago
At ~220PPI and 2x HiDPI mode it works as properly as Apple's Pro XDR 6K display: everything is crisply clear and the working area is vast. You basically get two and a half 4K screens seamlessly in one rectangle. Actually it has 4% more
60.
by riobard 1y ago
I've recently got a 32" 6K (6144x3456) display for my M4 Mac mini. Turns out 10-bit RGB at 60Hz requires about 38Gbps bandwidth, which is just slightly below the theoretical limit of Thunderbolt 4 and USB 4 (40Gbps), but the actua

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