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Performance boost without hyperthreading

Bruce Campbell

Will reducing the number of threads on a quad core CPU speed up Studio performance? I decided to find out by turning off hyperthreading in my BIOS. 

Now, even though my 4-core CPU is only operating with 4 threads, Studio appears to be running faster. As a bonus, Dragon DPI 15 also appears to be performing better.

When I monitor the processes for these two programs in the Task Manager, I now see their CPU usage rise to around 25% or higher, while before their CPU usage used to max out at around 13%.

Even if Studio and Dragon fully use one CPU core each, my quad core i7 7700K CPU should still be powerful enough to manage all of the other processes on the remaining 2 cores.

I thought I would mention this in this forum in case anyone else wanted to try it out. I would be interested in hearing whether you experience a speed-up or slow-down in performance, or any comments you might have.

Regards,
Bruce Campbell
ASAP Language Services
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  • in reply to Bruce Campbell
    To summarise what I have been doing so far:

    With hyperthreading turned off, the Task Manager currently shows Studio using around 25% or more of my CPU when doing a large analysis.

    Dragon (Nuance DPI15) uses around 35% or more when I dictate a long sentence.

    If I exclude both Studio and Dragon (natspeak.exe) as *processes* in Windows Defender (see the discussion in the following Community discussion: community.sdl.com/.../10892) and turn off the SDL Telemetrics service, Studio and Dragon are the only processes that use a significant share of my CPU.

    As a result, if I do an analysis in Studio and dictate a long sentence in Dragon at the same time, my CPU utilisation rises to around 60% to 70%.

    Regards,
    Bruce Campbell
    ASAP Language Services
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