Ultimately most of what I find on the internet suggests that hyper threading and SQL Server are not good friends, however most it that info is extremely dated. My SystemThere were a lot of configuration questions so I'll address those here so they can be ruled out. We have the power set...
If you can't do this, at least pin the threads to the socket where you think it should run. If the threads can't be bound to specific cores, rebooting with HyperThreading disabled will give the OS less opportunity to screw up the scheduling. I would also use the numa facilit...
Who Should Care About Hyperthreading? This is another question that can be a little complicated but is actually pretty simple when you break it down. First, let’s put out the one thing about hyperthreading that’s almost always true. If you must choose between two processors that can handl...
Hyper-Threading technology is a performance feature that allows one core on the processor to appear like 2 cores to the operating system. This doubles the execution resources available to the Operating System. Most of today's hardware allows you to enable or disable Hyper-Threading at the BIOS ...
Turbo Boost Technology: This feature allows the processor to dynamically increase its clock speed when needed, providing extra performance for demanding tasks. Large Cache: i9 processors come with a larger cache size, which helps to reduce data access times and improve overall system responsiveness. ...
I believe peak flops should be calculated using the core count, not the thread count as hyperthreading does not increase the number of execution units. With 4 cores * 8 floats (256-bit wide FPU) * 2 (mul + add) * 3.7 GHz I get 237 GFlops. And as Robert pointed out the operation...
Threading.Tasks.Task' Cannot convert null to 'int' because it is a value type--need help Cannot convert string[] to string in foreach loop Cannot convert type 'System.Collections.Generic.List<Microsoft.Azure.Cosmos.Table.ITableEntity>' to 'System.Collections.Generic.List<ITableEntity>' Cann...
On Linux, the resolution of the function sleep() could be much better. The following test script: https://gist.github.com/ufechner7/d264fb714a551d333e6b shows an error of about 1.1 ms on my PC (core i7, 3.4 GHz, no hyper threading, Ubunt...
Intel Skylake and Kaby Lake have a hyperthreading bug that's so serious that Debian recommends that users disable hyperthreading to avoid the bug, which can "cause spurious errors, such as application and system misbehavior, data corruption, and data loss". On the AMD side, there might be ...
There can be a prefetch unit for the L1d and L1i caches. There is most probably a prefetch unit for the L2 cache and higher. The L2 and higher prefetch unit is shared with all the other cores and hyper-threads using the same cache. The number of eight to sixteen separate streams ...