KernelPanic@programming.dev to Programmer Humor@programming.devEnglish · 1 个月前Learning to program in rustprogramming.devvideomessage-square58linkfedilinkarrow-up1313arrow-down15
arrow-up1308arrow-down1videoLearning to program in rustprogramming.devKernelPanic@programming.dev to Programmer Humor@programming.devEnglish · 1 个月前message-square58linkfedilink
minus-squaretatterdemalion@programming.devlinkfedilinkarrow-up5·1 个月前Arc is not free, and the extra atomic operations + heap allocations can become a bottleneck.
minus-squarePlexSheep@infosec.publinkfedilinkarrow-up1·1 个月前Oh, I did not know that. Well, it makes sense that it has a heap allocation, as it becomes more or less global. Though not sure why the atomic operations are needed when the value inside is immutable.
minus-squareMiaou@jlai.lulinkfedilinkarrow-up1·1 个月前How can you otherwise keep track of an object’s lifetime if copies are made concurrently?
Arcis not free, and the extra atomic operations + heap allocations can become a bottleneck.Oh, I did not know that. Well, it makes sense that it has a heap allocation, as it becomes more or less global. Though not sure why the atomic operations are needed when the value inside is immutable.
How can you otherwise keep track of an object’s lifetime if copies are made concurrently?