Cache-line based notification

Embodiments of the invention provide a method, system, and computer program product for cache-line based notification. An embodiment of the method comprises injecting a cache-line including notification information into a cache of a processing unit, marking the cache-line as having the notification information, and using the notification information to notify a processing thread of the presence of the cache-line in the cache. In an embodiment, the cache-line identifies a thread affiliation. In an embodiment, a multitude of threads operate in the processing unit, and the using includes notifying a plurality of these threads of the presence of the cache-line in the cache, and analyzing the cache-line to identify this plurality of threads. The cache may include a plurality of cache-lines, each of which includes a notification, and the processing unit thread uses these notifications to form a linked list of at least some of the cache-lines.