berkut

46 ms·

451.
by berkut 9y ago
I've had the same: I have firstname.lastname, and I've had netflix, nytimes subscription, dropbox registrations (and warnings that it's full), hotel bookings, and many other things that are nothing to do with me, targeted to
452.
by berkut 9y ago
I hope this is a joke: the std::weak_ptr / std::shared_ptr combo (only non-reference alternative I can think of other than std::optional) can have pretty bad performance implications due to ref-counting atomics in multi-threaded scenar
453.
by berkut 9y ago
Are Rust ref-counts atomic? (I'd assume so). Atomic ref-counts can actually have a surprising amount of overhead in many multithreaded scenarios, so much so that going back to raw pointers over shared pointers in C++ for some use cases
454.
by berkut 9y ago
Ha - I'd prefer the opposite! - get rid of the trackpad :)
455.
by berkut 9y ago
Full sleep state is currently a bit of an issue apparently: https://forums.lenovo.com/t5/Linux-Discussion/X1-Carbon-Gen-... There are work-arounds by building IASL with a patch to restore S3 state.
456.
by berkut 9y ago
It was only used for story board previz stuff on that.
457.
by berkut 9y ago
I'd heard rumours... Nothing concrete though, so I could be wrong.
458.
by berkut 9y ago
Yes, but even when throttled, it can often be faster than full-clock less wide instructions, if your workload allows for it. So it's sometimes worth it and there is a benefit.
459.
by berkut 9y ago
For well-optimised floating point calculations, this is generally true (even taking into account the SMT capabilities of Power8). Intel also has 8-wide (and more) SIMD in terms of intrinsics (AVX/AVX512), whilst Power is still limited
460.
by berkut 9y ago
Pretty much (there's a bit of Windows at the smaller places) all the big VFX studios (ILM, SPI, Weta, Framestore, MPC, DNeg) are running Linux for almost everything involving content creation, using apps like Maya, Nuke (for compositin
461.
by berkut 9y ago
Some ARM CPUs are vulnerable to Meltdown: https://developer.arm.com/support/security-update
462.
by berkut 9y ago
For private servers that are totally not connected to the internet in any way and don't need to be, run self-developed code on data which is mainly CPU-bound but also need a lot of disk IO for reading files and memory mapping data, I&#
463.
by berkut 9y ago
> I'm acutely aware of how much does or does not go into textures. Modern shaders can account for as much as half of rendering time, with tracing of rays accounting for the other half. This is the entire shader, not just textures an
464.
by berkut 9y ago
It's a video from the Infrared Search and Track system, which is independently aimed, hence why it's always centred.
465.
by berkut 9y ago
It's an Infrared camera video, taken from the Super Hornet's IRST system which can slave / gimbal independently of the aircraft's manoeuvring, hence why it's centred.
466.
by berkut 9y ago
OpenGL doesn't do raytracing where you have a ray origin and direction though, so you wouldn't have seen it there. Using the full terms or shortening them to Dir and Orig are more conventional in my experience. It gets even more f
467.
by berkut 9y ago
It depends on where the camera is, how far the floor extends and the reflection angle (which might be different for different materials / IOR). https://imgur.com/a/PCG4O
468.
by berkut 9y ago
While cool, it should be pointed out that this way of ordering things doesn't really scale with scene complexity (more objects, more complex triangular meshes requiring acceleration structures) or image size, as the number of masks req
469.
by berkut 9y ago
Boeing was 'only' asking for 80%...
470.
by berkut 9y ago
While true, seeing as everyone else also seems to do it (Dell, Apple, Lenovo have very similar photos although admittedly not always with a human user in the photos) it seems slightly odd to complain about what are fairly obviously promotio
471.
by berkut 9y ago
Keep in mind AMD and Intel measure TDP differently - AMD give average for a particular workflow / scenario, and Intel give absolute maximum, so you can't compare them apples-to-apples.
472.
by berkut 10y ago
Exactly - C++ compilers definitely can do this, and it's one of the things ICC's noticeably better than GCC and LLVM at, especially where intrinsics are involved. If you have a struct/class type union wrapper for SIMD instr
473.
by berkut 10y ago
Looking at the diff they did it doesn't really look that way (only had a quick glance though). Looks like they're not using a swept BVH (interpolated time segments) for motion blur which seems weird, instead leaf nodes seem to b
474.
by berkut 10y ago
GCC produces almost 30% more instructions for the C version at -O3 level as opposed to -O2. Clang produces practically the same between the two levels. On OS X, so can't test if this actually makes a performance difference.
475.
by berkut 10y ago
Mostly Renderman RIS now from what I've heard, although there's still a bit of Arnold being used, and the VRay stuff DMP were using is mostly Clarisse now.
476.
by berkut 10y ago
A lot of studios used to have their own fluid / volume renderers, but it's less common these days as the main renderers can do volumes/implicits fairly well these days. But more studios have their own full renderers these day
477.
by berkut 10y ago
That's not really what 'biased' and 'unbiased' mean - unfortunately the terms have been miss-used quite a bit, and are actually open to interpretation to a degree anyway. You can have biased physically-based renderi
478.
by berkut 10y ago
Without knowing the settings which were used by each renderer (and thus stuff like the BSDF materials, sampling techniques, random number generator sequences, etc, etc), it's very difficult to say. All these things play a crucial part
479.
by berkut 10y ago
Pointer size doubles, so any data structure (linked list, tree, etc, etc) which uses raw pointers directly will need more memory to store the same items. Normal way of negating this increase is to use uint32_t offset items into a master arr
480.
Rust and the limits of swarm design(esr.ibiblio.org)
14 points by berkut 10y ago|6 comments

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