Christopher Pereira said on Thu, 09 Sep 2021 11:48:06 +0200 >Hi, > >I'm *reading* a directory with 5.000.000 files (2,4 GB) inside a guest >using "find | grep -c". > >On the host, virt-top reports high *write* IO (40 MB/s !) during over >1 hour.
My very first step would be to make sure every mount on the guest has the noatime property, and the mount containing the qemu image you're working with is mounted noatime. SteveT Steve Litt Spring 2021 featured book: Troubleshooting Techniques of the Successful Technologist http://www.troubleshooters.com/techniques
