The Joseph and Grunwald study focused primarily on data cache misses
, and did not compare Markov prefetching with techniques designed specifically for prefetching instructions.
At this point, the prefetch hardware begins to monitor how often a cache miss
to block b occurs while block b - 1 is cached, and restarts prefetching if the respective ratio of these two numbers exceeds the lower threshold of the prefetch efficiency.
Section 4.5 shows that a TRG yields a stronger linear relationship between conflict-metric values and cache miss
rates than does a WCG.
We present a formal model for analyzing cache misses
, and show that the so-called multifrontal algorithms are better able to exploit caches for some input matrices while for some other input matrices the so-called left-looking algorithms are better.
The server is contacted on all block movement in and out of the client caches and uses this information to satisfy block location requests from clients on a local cache miss
. When a client writes a block, it informs the server which in turn invalidates copies of the block in other clients' caches.
Section 4.3 reports our simulation results for branch prediction accuracy and cache miss
rates of programs transformed by SCBP coupled with Pettis-and-Hansen-style code layout.
We assume the level-L cache is large enough to hold all of the needed data; therefore there are never any level-L cache misses
Recently, however, some new tools that trap only after certain events (such as a simulated cache miss
) have led to a resurgence of trap-based monitoring.
BFS exhibits L2 cache missing rate of 20.8% and KM exhibits 27.1%, which exhibit regular behavior, present cache miss
rates that are lower but still high enough to be of interest.
The address traces generated by our Gauss-Seidel execution was fed into this profiler which in turn modelled the corresponding cache operation to give out cache miss
Hardware Shared Memory Cache Miss
Local 11/12 Cache Miss
Remote 38/38 Cache Miss
2-party 42/43 Cache Miss
3-party 63/66 Remote Software 425/707 Software Virtual Memory Distributed Array Translation 16 Pointer Translation 23 Software Shared Memory TLB Fill 2302/3590 Page Fault 11772/21956 Upgrade Fault 12441 Page Fault, Single-Writer 29353/35293 Single-Writer Transition 9992 Release (2 writers) 33424 Release (3 writers) 33516 The second group of measurements shows the cost of software address translation.
Once we have the information about the reuse, we can check if any intervening memory access evicts the memory line from the cache before it can be reused; this would result in a cache miss
If the data are found in the cache, the access is satisfied locally; otherwise, a cache miss