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If you encounter slow disk performance, particularly with large file operations
(greater than 1 GB), on your Confidential VM instance with a GPU, add idle=poll
in GRUB_CMDLINE_LINUX_DEFAULT to the
/etc/default/grub.d/50-cloudimg-settings.cfg file on your VM. Run the
sudo update-grub command to update the GRUB configuration, and then reboot.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["# Disk performance\n\nIf you encounter slow disk performance, particularly with large file operations\n(greater than 1 GB), on your Confidential VM instance with a GPU, add `idle=poll`\nin `GRUB_CMDLINE_LINUX_DEFAULT` to the\n`/etc/default/grub.d/50-cloudimg-settings.cfg` file on your VM. Run the\n`sudo update-grub` command to update the GRUB configuration, and then reboot.\n\nFor more information, see\n[Troubleshooting disk performance in Google Cloud instances](/compute/docs/troubleshooting/troubleshooting-performance#storage_performance)."]]
