palinkapika

3 ms·

1. 1.▲
   by palinkapika 3y ago

   UTM uses Virt io FS with Apple's virtualisation backend. Works out of the box with my Ubuntu server guests. You still need to mount the share as described here, but that's it: https://docs.getutm.app/guest-support&
2. 2.▲
   by palinkapika 6y ago

   > If we are talking about a call like Arrays.setAll(array, function) and you have one or two candidates for function, then you are mono- or bimorphic. If you have 25 candidates for function, you are highly polymorphic. I don't under
3. 3.▲
   by palinkapika 6y ago

   The results for the parallel code are indeed interesting. However, the speedup < 2 with C2 is suspicious. Even on an old dual core / 4 thread system (common worker pool should default to 3 workers), I would expect it to be above 2 f
4. 4.▲
   by palinkapika 6y ago

   Yes, this is strongly related to inlining. Without the warmup code C2 most likely inlines your lambdas into the code generated for the for each method. At least I have seen this behavior with similar APIs (you can use a tool called JITWatch
5. 5.▲
   by palinkapika 6y ago

   And of course I screwed up the warmup parameter...
6. 6.▲
   by palinkapika 6y ago

   You might already know this, but there is one potential caveat with APIs like that when it comes to performance or at least measuring their performance. The hot loop (the code that actually iterates over your data points) does not live in y