Throttling guest write ios based on destination throughput

A system comprising:

• memory comprising a virtual memory;
• a virtual machine that writes a log of operations performed by the virtual machine to memory;
• a processor that provides the log to a server;
• a migration component that detects a write rate of the log to the memory and receives a write rate of the log on the server from the server;
• a comparison component that determines the write rate of the virtual machine is less than the write rate on the server;
• and
• a rate reduction component that reduces the write rate of the virtual machine when the comparison component determines the write rate on the system is less than the write rate on the server.

One or more computer-readable storage media to store computer executable instructions, that when the executed by a processor, the processor implements acts comprising:

• detecting a write rate of a virtual machine log in memory on a first server;
• providing a first portion of the virtual machine log to a second server;
• receiving, at the first server, a write rate of the portion of the virtual machine log on the second server;
• and
• determining the write rate of the virtual machine log on the first server is greater than the write rate of the virtual machine log on the second server;
• and
• when the write rate of the virtual machine log on the first server is greater than the write rate of the virtual machine log on the second server, reducing the write rate of the virtual machine log on the first server providing a second portion of the virtual machine log to the second server after waiting a predetermined period of time since providing the first portion of the virtual machine log.