BSD: OpenSSH 7.8 and DragonFlyBSD Gets Performance Tuning For Threadripper 2990WX Topology
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OpenSSH 7.8 released
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DragonFlyBSD Gets Performance Tuning For Threadripper 2990WX Topology, Scheduler Tuning
While it was just days ago that DragonFlyBSD lead developer Matthew Dillon got his hands on a Threadripper 2990WX 32-core / 64-thread "beast", got it working under this long ago forked operating system from FreeBSD, and proceeded to exclaim with joy how powerful this system is, he's now made it even better. Dillon has landed some additional kernel work to benefit the AMD Ryzen Threadripper 2990WX.
On top of the kernel changes made at the end of last week to bring-up the 2990WX support, Matthew Dillon has now had the time to do some tuning to make this 64-thread system perform even faster. Hitting DragonFlyBSD Git overnight was a patch to update the AMD topology detection as seeing four nodes with eight cores and two threads per core, per node. Previously it was just exposed as a CPU with 32 cores and 2 threads per core.
The DragonFly patch also now is able to expose how much memory is accessible from each node, an instability fix in the kernel's scheduler when dealing with large core counts, and memory-on-node weighting in the scheduler.
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