High windowserver CPU usage on Catalina

I'm running the latest Catalina public beta and noticed really high cpu usage by windowserver on the 1Password lock screen. The problem goes away once I unlock my vault or close the main app window (keeping the helper running is fine).

1Password Version: 7.3.2
Extension Version: Not Provided
OS Version: OSX Catalina PB
Sync Type: iCloud


  • Ricky RomeroRicky Romero Junior Member
    edited September 2019

    For what it's worth, this is true in Mojave too. When 1Password is locked, WindowServer uses about 20% CPU on my system.

    I think this may be related to the subtle gradient animation in the ring of the 1Password lock logo on this screen. If the team is concerned about this, rendering at a lower framerate (10-15 fps) should help - the animation is so subtle that most people won't notice the difference.

  • BenBen AWS Team

    Team Member

    Hi folks,

    I was able to reproduce this behavior. Thank you for the reports, and the tip about the gradient. I've filed a report with our development team for further investigation.



    ref: apple-4170

  • FWIW, this is still an issue 6 months later

  • ag_anaag_ana

    Team Member
    edited April 9


    Thank you for the update! Please keep an eye out on the release notes: we will publish an update there as soon as this has been addressed.

    ref: dev/apple/issues#4170

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