3 ms·
So you suggest cache misses corrected by a instruction-workload bias (which should be again biased by how "hot" the instructions remain)? EvilOfCacheMiss = Tim
by onetimePete 10y ago
So you suggest cache misses corrected by a instruction-workload bias (which should be again biased by how "hot" the instructions remain)?
EvilOfCacheMiss = TimeOfMemoryFetchCycles - CyclesSpendDoingInstructions /TimeOfMemoryFetchCycles
- azernik 10y agoMore like TimeOfMemoryFetchInCycle - CyclesSpentDoingInstructions But yeah, sounds like a useful metric to me.
- matt_d 10y agoThis discussion reminded me of a formula for calculating the average cost of a cache miss in this pretty cool paper ("An Analysis of the Effects of Miss Clustering on the Cost of a Cache Miss"). In particular, see Equation 4: http://researcher.ibm.com/files/us-viji/miss-cluster.pdf http://researcher.ibm.com/files/us-viji/miss-cluster.pdf