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  1. NVMe SSD. Slow disk speed inside VM

    Linear reading turned out to be quite sane fio --filename=/dev/sda --direct=1 --rw=read --bs=4k --ioengine=libaio --iodepth=256 --runtime=120 --numjobs=4 --time_based --group_reporting --name=iops-test-job --eta-newline=1 --readonly iops-test-job: (g=0): rw=read, bs=(R) 4096B-4096B, (W)...
  2. NVMe SSD. Slow disk speed inside VM

    Hi there! I faced a problem with slow disk speed performance inside a VM (when a VM has a disk on host NVMe SSD). For instance, when I copy 10GB file from one pve to another pve (LAN 10Gbit/s): rsync -P -avz file10G 10.1.123.1: sending incremental file list file10G 10,737,418,240 100%...

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