vsrinivas

5 ms·

1.
by vsrinivas 1mo ago
1) Don't give your guests access to the DCT control registers. 2) On 15h - no obvious way. I don't know the other families. 3) Yes -- this can be verified easily. Pick up the AMD 15h BKDG, look up BankSwizzleMode. It's docum
2.
Virtual accelerated GPU device for macOS VMs(reims-vgpu.com)
2 points by vsrinivas 2mo ago|1 comments
3.
by vsrinivas 2mo ago
QEMU implementation of the backend of AppleParavirtGPU.kext, accelerated via a metal to vulkan translation layer.
4.
Voyager FDS Emulator(zanehambly.com)
3 points by vsrinivas 4mo ago|1 comments
5.
by vsrinivas 4mo ago
Emulator of the Voyager Flight Data Subsystem, based on very hard-earned docs
6.
by vsrinivas 5mo ago
Hey - I use the same, w/ both gemma4 and gpt-oss-*; some things I have to do for a good experience: 1) Pin to an earlier version of codex (sorry) - 0.55 is the best experience IME, but YMMV (see https://github.com/opena
7.
by vsrinivas 3y ago
FYI, Lumon HQ / the Eeron Saarinen masterpiece is Holmdel Bell Labs; this article is about the Murray Hill building.
8.
by vsrinivas 3y ago
Don't forget BECM on Gen2
9.
by vsrinivas 4y ago
I'm sorry to hear Jakov passed away - he was a brilliant, kind engineer.
10.
by vsrinivas 5y ago
Intel Cooper Lake - it's a 14 nm server part that fit a particular niche (4S support, VNNI/bfloat16). It was partly due to FB, but also partly to provide a platform that was larger than ICX server could / can.
11.
by vsrinivas 7y ago
The TLB bug (Errata 298, doc 41322 if you really care - while the processor was attempting to set the A/D bits in a page table entry, an L2->L3 eviction of that PTE could occur) was one of a great many things wrong with that chip. *
12.
by vsrinivas 9y ago
Control Flow Enforcement (ENDBRANCH requirement at branch targets) looks like a nice feature, looking forward to it.
13.
by vsrinivas 9y ago
From the perspective of - 'take a fresh look at something we take for granted' - "A Preliminary Architecture for a Basic Data-Flow Processor" (Dennis & Misunas 1975) Focusing on the flow of data between operators and
14.
by vsrinivas 10y ago
You mean LRO instead of GRO, right?
15.
by vsrinivas 10y ago
Just wondering, why do you think so? (It wasn't obvious to me why, given a first read of the docs; the fact that applications run in VMs in Flex seems more like an implementation detail. Am I missing something?)
16.
by vsrinivas 10y ago
Yes it is. Recommend browsing for great UNIX / TCP history.
17.
by vsrinivas 14y ago
And DragonFly's dntpd! It's time sync algorithms are actually pretty cool.
18.
by vsrinivas 14y ago
That these benchmarks were done with 9.3-devel was important; part of what triggered this work was PostGres moving to a different way of mapping it's shared memory segment (mmap vs shm), the benchmarks were initially done to see how much th
19.
by vsrinivas 14y ago
Still hard to say. In the network stack, I think the DragonFly approach is definitely better (than fine-grained data structure locking). In DF, connections are routed to per-CPU network service threads based on a consistent hash; as a conne
20.
by vsrinivas 15y ago
The first edition has opening brackets for functions on a new line. It also used a space before parenthesis for while loops and conditionals. Return types, when required, were on the same line as a function name.
21.
by vsrinivas 15y ago
Hi, If you're interested in reading a paper about the execution model, Jeffrey Hsu's 2004 "The DragonFlyBSD Operating System" ( http://www.dragonflybsd.org/presentations/dragonflybsd.asiab... ) describes the LWKT and port abstractions. The