15 questions
2
votes
1
answer
89
views
How are eliminated values reconstructed during deoptimization in V8?
In Speculative Optimizations for WebAssembly using Deopts and Inlining the following statement is made:
The difference is in the code for the slow path. Without deopts, we don’t have the option of ...
- 139k
6
votes
1
answer
3k
views
what is a deoptimization request on un-deoptimizable method in Android Studio?
I'm running my app in Kotlin and there is no error, but I keep getting these warnings:
W/app: Got a deoptimization request on un-deoptimizable method boolean
libcore.io.Linux.access(java.lang.String, ...
- 155
1
vote
0
answers
162
views
R caret maximum accuracy gradient boosting
I am trying to tune gradient boosting (caret package) with differential evolution (DEOptim) in R language. I have a question, is correct to define the maximum of accuracy at each iteration in my eval ...
- 953
2
votes
1
answer
543
views
Passing optimization function arguments in R DEoptim
I am trying to learn the DEoptim library in R but I think I am misunderstanding the library documentation from
https://www.rdocumentation.org/packages/DEoptim/versions/2.2-4/topics/DEoptim
I am ...
- 2,109
0
votes
0
answers
243
views
When is javascript deoptimizer invoked?
I understand that js' JIT compiler will deoptimize the warm or hot code in case datatype changes in a loop (like one element in array is string whereas rest were int).
But i have few scenarios where ...
- 2,964
2
votes
1
answer
738
views
DEoptim error: objective function result has different length than parameter matrix due to foreachArgs specification
I have a very odd DEoptim error that I have "fixed", but do not understand.
I do not have issues when I use DEoptim's parallel capabilities with the parallel package (i.e., pType=1). However when I ...
- 25
6
votes
0
answers
197
views
Reproducible results across multiple runs of DEoptim
I am trying to use DEoptim in R in the following way
fit <- DEoptim(fn = .obj, lower=lower, upper = upper,
control = list(itermax = 100, trace = 1, parallelType = 1,
...
- 189
1
vote
1
answer
778
views
Javascript deoptimization
I'm not sure what's wrong in this code. Src is a Uint8Array object with a length bigger than 0.
function makeImageFromChannel(src) {
var image = new Uint8Array(src.length * 4),
i = 0,
...
- 13.7k