Finally, we see in Figure 1 that these schemes are hiding no more than half of the stall time due to instruction cache misses
The code segment given in Figure 4(c) removes most cache misses
and unnecessary prefetches, but further improvements are possible.
Figure 13 shows these graphs for the latex benchmark, and they confirm that the TRG-based conflict estimate is a more accurate predictor of actual cache misses
This section presents a theoretical analysis of cache misses
in left-looking and multifrontal sparse Cholesky factorization algorithms.
In , cache misses
found in cc-NUMA multiprocessors are firstly classified in terms of the actions performed by directories to satisfy them, and then, it is proposed a novel node architecture that makes extensive use of on-processor-chip integration in order to reduce the latency of each one of the types of the classification.
01% of the local cache misses
(averaged across all periods) is the desired block in the client caches, but the hints say otherwise.
Change in Change in Benchmark mispredicts cache misses
alt -250,000 5 ph -299,999 1 corr -56,667 6 wc -816,385 0 compress -3,153,617 17 eqntott -4,082,420 7 espresso -2,541,670 505,922 gcc -651,830 422,969 go -85,441,578 321,045,879 ijpeg -29,846,641 50,752,332 li -167,812,690 -68,303,333 m88ksim -29,130 2 perl -19,250,983 19,593,753 vortex -1,788,406 -112,306,440
We recommend, as a heuristic, choosing [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] because this value reduces the number of cache misses
for the largest possible number of caches.
Hardware events such as cache misses
, integer- and floating-point-unit stalls, exceptions, and interrupts all must be separated from run cycles to determine the actual type (read, write, execute) and size (word, halfword, byte) of the memory references made by a monitored processor.
When R is stored in column-major order, this technique drastically reduces the number of cache misses
For example, threads with pending cache misses
are not considered for cache/BTB access.
In the single-file tests, no cache misses
or disk activity occur once the file has been brought into memory.