madanMus
No user record in our sample, but madanMus has activity below (stories or comments). Likely we have partial data — the full bulk-load will fill profiles in.
No user record in our sample, but madanMus has activity below (stories or comments). Likely we have partial data — the full bulk-load will fill profiles in.
yes, you did read correctly. The 1-3% does assume a non-standard whole-program analysis. Something more practical on existing hardware will look more like the E numbers (for escape analysis): 17.5% on x86 and 6.8% on…
[I am one of the authors of the paper.] The paper reports overhead numbers from existing research. For instance, see Figure 18 in http://arxiv.org/abs/1312.1411, which shows the cost of SC for memcached - 1% on x86 and…
But the math is currently broken for Java. See http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.112.... Here the authors show that most common compiler optimizations are JMM incompatible.
The article does not ignore architectures like ARM. You do need fences, but not all the time - the compiler can avoid fences in places where there is no danger of violating sequential consistency (e.g. on accesses to…