Hi, I am writing to inquire about the vring cleanup process during packets transmission. In the virtio_xmit_pkts function, there is the following code: nb_used = virtqueue_nused(vq); if (likely(nb_used > vq->vq_nentries - vq->vq_free_thresh)) virtio_xmit_cleanup(vq, nb_used); In other words, cleaning is performed when the number of items used in the vring exceeds (vq->vq_nentries - vq->vq_free_thresh). In the case of an vring size of 4096, at least (4096-32) items need to be cleaned at once, which will take a considerable amount of time. I'm curious why not clean up fewer items each time to avoid taking up too much CPU time in one transmission. Because during the debugging process, I found that cleaning up thousands of items at once takes up a considerable amount of time. As I am not familiar with this process, I would appreciate it if you could provide me with some information on what its purpose is. Best regards, Zengyuan Wang