Can anybody explain the big performance difference between VIRTIO SCSI and VIRTIO SCSI single especially when using iotread=0 and iothread=1?
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Code:
read : io=1637.7MB, bw=39596KB/s, iops=6491, runt= 42350msec VIRTIO SCSI iotread=0
read : io=1637.7MB, bw=41136KB/s, iops=6744, runt= 40765msec VIRTIO SCSI single iotread=0
read : io=1637.7MB, bw=36911KB/s, iops=6051, runt= 45431msec VIRTIO SCSI iotread=1
read : io=1637.7MB, bw=53724KB/s, iops=8808, runt= 31213msec VIRTIO SCSI single iotread=1...Read more