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path: root/src/mem/ruby/common/Consumer.cc
AgeCommit message (Collapse)Author
2014-03-20ruby: consumer: avoid accessing wakeup times when waking upNilay Vaish
Each consumer object maintains a set of tick values when the object is supposed to wakeup and do some processing. As of now, the object accesses this set both when scheduling a wakeup event and when the object actually wakes up. The set is accessed during wakeup to remove the current tick value from the set. This functionality is now being moved to the scheduling function where ticks are removed at a later time.
2013-03-22ruby: consumer: avoid using receiver side clockNilay Vaish
A set of patches was recently committed to allow multiple clock domains in ruby. In those patches, I had inadvertently made an incorrect use of the clocks. Suppose object A needs to schedule an event on object B. It was possible that A accesses B's clock to schedule the event. This is not possible in actual system. Hence, changes are being to the Consumer class so as to avoid such happenings. Note that in a multi eventq simulation, this can possibly lead to an incorrect simulation. There are two functions in the Consumer class that are used for scheduling events. The first function takes in the relative delay over the current time as the argument and adds the current time to it for scheduling the event. The second function takes in the absolute time (in ticks) for scheduling the event. The first function is now being moved to protected section of the class so that only objects of the derived classes can use it. All other objects will have to specify absolute time while scheduling an event for some consumer.
2013-02-10ruby: replaces Time with Cycles in many placesNilay Vaish
The patch started of with replacing Time with Cycles in the Consumer class. But to get ruby to compile, the rest of the changes had to be carried out. Subsequent patches will further this process, till we completely replace Time with Cycles.
2013-01-14Ruby: use ClockedObject in Consumer classNilay Vaish
Many Ruby structures inherit from the Consumer, which is used for scheduling events. The Consumer used to relay on an Event Manager for scheduling events and on g_system_ptr for time. With this patch, the Consumer will now use a ClockedObject to schedule events and to query for current time. This resulted in several structures being converted from SimObjects to ClockedObjects. Also, the MessageBuffer class now requires a pointer to a ClockedObject so as to query for time.
2012-09-18ruby: avoid using g_system_ptr for event schedulingNilay Vaish
This patch removes the use of g_system_ptr for event scheduling. Each consumer object now needs to specify upfront an EventManager object it would use for scheduling events. This makes the ruby memory system more amenable for a multi-threaded simulation.
2012-09-10Ruby System: Convert to Clocked ObjectNilay Vaish
This patch moves Ruby System from being a SimObject to recently introduced ClockedObject.
2012-08-27Ruby: Remove RubyEventQueueNilay Vaish
This patch removes RubyEventQueue. Consumer objects now rely on RubySystem or themselves for scheduling events.