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Aujourd’hui — 21 novembre 2024Phoronix
Hier — 20 novembre 2024Phoronix

8 vs. 12 Channel DDR5-6000 Memory Performance With AMD 5th Gen EPYC

20 novembre 2024 à 16:40
As I wrote about last week within the Supermicro H13SSL-N EPYC Turin motherboard review, one of the factors leading me to purchasing that EPYC 9005 series motherboard was that this board offered support for full 12 channel DDR5-6000 memory performance compared to some of the other lower-cost Socket SP5 motherboards offering just 8 memory channels. For those wanting to quantify the performance difference between eight and twelve memory channels with AMD EPYC 9005 "Turin" processors, here are some benchmarks for showing the workloads that can really benefit from all 12 memory channels and other workloads where eight memory channels can be largely sufficient if looking to minimize costs.

Multigrain Timestamps Try Again For Linux 6.13 - Now With Less Performance Impact

20 novembre 2024 à 11:10
Merged last year for Linux 6.6 was multi-grain(ed) timestamps to address the current coarse-grained timestamps when updating creation time and modification time that a lot of I/O activity can happen in the once-per-jiffy timestamp. Just a few weeks in the Linux 6.6 kernel, multi-grain timestamps were removed due to bugs. The multigrain code went back to be reworked and now just over one year later the code has been re-merged into the mainline Linux kernel...
À partir d’avant-hierPhoronix

New Linux Patch Lets You Force CPU Bugs/Mitigations Even When Not Vulnerable

19 novembre 2024 à 19:29
While most users frown upon the increasing number of CPU security mitigations in part due to the additional overhead commonly introduced, a new Linux kernel patch by a Google engineer would allow users/developers to opt-in to forcing CPU bugs and their mitigations even if the system in use isn't known to be vulnerable...
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