Running the TS bench on a XEON E5-1650 v4

[splatterpop]

Hi,

when running the TS bench with 1 thread, all cores show activity. Is that expected?

 

[unclewebb]

When your computer is idle at the desktop with nothing open besides ThrottleStop, what does ThrottleStop report for your idle C0%? My laptop needs to spend less than 0.5% of its time in the C0 state processing Windows background tasks.

When running a TS Bench 1 Thread test on a 6 core CPU, the C0% should be around 17%. Your screenshot shows 29% so that tells me that you have a lot of stuff running in the background. When a task needs to be scheduled, it looks like it is being scheduled on whatever core is available. Windows has core parking settings that can be adjusted in the Windows power plan to force cores to remain idle. There are situations when doing that might be the way to go and there are other situations when if a task needs to be processed, it makes sense to wake up an idle core and schedule the task on that core rather than waiting for an active core to become available.

When I run a TS Bench 1 Thread test, the task spends most of its time on the same core. I do not have very many background tasks so there is no need to move the TS Bench from core to core.

 

[splatterpop]

About 1-2% according to task manager. None of my cores was even close to 90% in that run. My expectation was to get output exactly like yours.

 

[unclewebb]

About 1-2% according to task manager

Can you post a screenshot of ThrottleStop when your computer is idle?

When ThrottleStop creates a TS Bench task, it tells Windows that this task can be run on any core or on any thread of that core. It is up to Windows and the CPU to decide where to schedule this task. Are you using Windows 10? What power plan are you using?

At default settings, I believe tasks can be rescheduled onto the same core or onto a different core up to 64 times per second. It looks like your TS Bench task is being bounced around fairly evenly to whatever core is available. Not sure why. I do not think it makes much of a difference whether the TS Bench stays on one core or bounces around to all of them.

You can play around with the ParkControl program if you want to see if changing the Windows park control settings make any difference.

ParkControl – Tweak CPU Core Parking and More

ParkControl is free software to display and tweak CPU core parking settings in real-time. It also has an assortment of complimentary power automation features.

bitsum.com

Edit - Did you turn hyper threading off on purpose? A Xeon E5-1650v4 has 6 cores and 12 threads but half of your CPU has been disabled. It is rarely a good idea to do this. Maybe that has something to do with why tasks are allocated like they are.