x87 Output Assists

This event counts the number of x87 operations needing assistance to handle an exception condition. This metric is often used in a per-instruction ratio.

See Also Additional Events that Indicate Coding Pitfalls:

Split Loads Retired

MOB Load Replays Retired (Blocked Store-to-Load Forwards Retired)

Streaming SIMD Extensions (SSE) Input Assists

x87 Input Assists

64k Aliasing Conflicts