Virtio is a standard interface for driver communication between the guest operating system and the hypervisor in virtualization environments. It provides a method for efficient data transfer between virtual machines (VMs) and the host system without requiring any custom drivers. Virtio devices are implemented as virtual devices that communicate with the VM through paravirtualized interfaces, providing high performance and low overhead compared to traditional emulated devices. This enables VMs to operate at near-native speeds while running on a hypervisor, making virtio an essential component in most modern virtualization setups.
![int dictRehash(dict *d, int n) {
int empty_visits = n*10; /* Max number of empty buckets to visit. */
unsigned long s0 = d->ht[0].size;
unsigned long s1 = d->ht[1].size;
if (dict_can_resize == DICT_RESIZE_FORBID || !dictIsRehashing...](https://linuxcpp.0voice.com/zb_users/upload/2023/05/202305162238211744233.png)
