bazsy

joined 2 years ago
[–] bazsy@lemmy.world 6 points 7 months ago

The mobile and TV clients are often limited to the codecs with hardware acceleration. Or just selecting a lower bitrate on the client will cause transcoding.

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submitted 9 months ago* (last edited 9 months ago) by bazsy@lemmy.world to c/hardware@lemmy.ml
 

Video version: https://youtu.be/0PrmrMQ9gJU

In February 2024, Intel held its first Intel Foundry Direct Connect event. [...] The tone of the event was one of success – Intel Foundry (IF) is set to be a semi-autonomous body of Intel that aggressively fights for business, whether Internal or External, without playing favorites.

[...]

Ian: It’s been said in the past that Intel bets the whole company on the next process node, is that still true?

Pat: I’ve bet the whole company on 18A. We have committed products to this - it is the culmination of our 5 nodes in 4 years. So bringing that across the line, in that sense yes - I’ve bet the whole company on making this successful.

 

cross-posted from: https://lemmy.world/post/11840660

TAA is a crucial tool for developers - but is the impact to image quality too great?

For good or bad, temporal anti-aliasing - or TAA - has become a defining element of image quality in today's games, but is it a blessing, a curse, or both? Whichever way you slice it, it's here to stay, so what is it, why do so many games use it and what's with all the blur? At one point, TAA did not exist at all, so what methods of anti-aliasing were used and why aren't they used any more?

 

Here are some initial benchmarks of the Grace CPU performance while the Hopper GPU benchmarks will be coming in a follow-up article.

NVIDIA's GH200 combines the 72-core Grace CPU with H100 Tensor Core GPU and support for up to 480GB of LPDDR5 memory and 96GB of HBM3 or 144GB of HBM3e memory. The Grace CPU employs Arm Neoverse-V2 cores with 1MB of L2 cache per core and 117MB of L3 cache.

On a geo mean basis across all the benchmarks conducted, the GH200 Grace CPU performance nearly matched the Intel Xeon Platinum 8592+ Emerald Rapids processor. The Arm Neoverse-V2 based Grace CPU tended to be much faster than the 128-core Ampere Altra Max AArch64 server.

Overall the NVIDIA GH200 CPU benchmarking was quite fascinating to see its early potential. There still are some workloads not too well optimized for AArch64 and in some cases the higher core counts and dual socket configurations available with Intel Xeon Emerald Rapids and AMD EPYC Genoa(X) / Bergamo could drive the results much higher.

[–] bazsy@lemmy.world 5 points 10 months ago* (last edited 10 months ago) (1 children)

There is an even more relevant video of using external storage trough USB. He recommends using software raid:

Can We Build a Home Server Out of Mini PCs?

[–] bazsy@lemmy.world 1 points 10 months ago (1 children)

Are both drives fully encrypted with LUKS? Is trim enabled in both crypttab and fstab?

[–] bazsy@lemmy.world 1 points 10 months ago* (last edited 10 months ago) (1 children)

Thanks for the links! I updated my config from z3fold to zsmalloc and adjusted the vm.page-cluster to test these out.

Reading a bit more, I think when using large max_pool_percent (>30) with Zswap the two solutions are more similar than not. A crucial difference is what use-case is more acceptable since Zswap can cause unresponsiveness (and potential lockup) under high memory pressure. While Zram could result in an OOM crash in a similar worst-case scenario.

[–] bazsy@lemmy.world 2 points 10 months ago

It is possible, it's just not generally supported be ISP routers. Also there is a possibility of performance issues since IPv4 NAT often relies on hardware acceleration which might not work for NAT6.

[–] bazsy@lemmy.world 10 points 10 months ago (5 children)

Even tough IPv6 is technically superior to IPv4 for the network operator it doesn't have clear benefits for home users.

Having global addresses instead of NAT means less control over your LAN and these unique public addresses can track users more accurately.

[–] bazsy@lemmy.world 5 points 10 months ago (3 children)

Btrfs with compression enabled and subvolumes set.

And enable/automate maintenance services for BTRFS. For example: balace should be run on heavily used system disks or scrub could help detect errors even on single disks.

ZRAM (With proper sysctl.conf like PopOS does).

Could you explain the preference of ZRAM over ZSWAP? I thought the latter was the more advanced and better performing solution. Is there some magic in Pop's config?

[–] bazsy@lemmy.world 2 points 10 months ago* (last edited 10 months ago) (1 children)

Happy to help! Tough you are right, this is a rather generic error that doesn't help much just confirms that the GPU is the issue.

At this point it could be a driver issue since there are similar open bug reports. A hardware problem is still possible since you previously said that it's unstable on windows too, and power related issues can also lead to this error message.

[–] bazsy@lemmy.world 2 points 10 months ago (4 children)

Most distros use systemd and its logging solution: journald. You can use journalctl to read the logs around the time of the crash for e.g.:

  • journalctl -S -5m this shows the last 5 minutes. Use this when a game crashes but the system continues working and did not reboot.
  • journalctl -b -1 -S -10m this shows the last 10 minutes from the previous boot. Use this if the crash froze the whole system and rebooted.

Look for red lines (errors) and what wrote them. AMD GPU faults usually have the 'amdgpu' mentioned, memory errors could appear as 'protection fault'.

[–] bazsy@lemmy.world 1 points 10 months ago (6 children)

Did you check the system logs to see what caused it?

Many things can result in seemingliy random crashes. Any overclock (including XMP and Expo) or undervolt or even a bios version can be problematic.

I would check first if it's stable on windows.

[–] bazsy@lemmy.world 1 points 11 months ago (1 children)

What filesystem are you using? Is it encrypted?

Could you run a benchmark to verify if reads and writes are both affected? KDiskMark is like crystaldiskmark or Gnome Disks has a built in benchmark.

[–] bazsy@lemmy.world 6 points 11 months ago

Do I need to disable compression on my swap subvolume?

Short: No

Long: it doesn't matter when mounting multiple subvolumes of the same btrfs partition the options from the first one (usually /) will apply to all. So even if you disable it, that will be ignored.

The old way of creating swap shows the chattr +C line which disables CoW. The same method should work for your Downloads folder since CoW is needed for snapshotting.

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