On Wednesday, 21 January 2015 at 01:07:59 UTC, weaselcat wrote:
On Wednesday, 21 January 2015 at 01:05:28 UTC, weaselcat wrote:
there is no silver bllet for memory and
Sorry, meant "silver bullet for memory management", bit tired :
)
Yeah, but the silver bullet for memory management in real time
applications are:
1. preallocation
2. O(1) allocation with upper bounds on total memory usage
Then you can use a GC if you
1. know when it runs and have headroom for it
2. can put an upper bound on what it scans
Implicit concurrent GC collection leads to:
1. less efficient codegen + restrictions related to FFI
2. higher memory usage with limited ability to put upper bounds
3. intermittent pauses
4. random cache pollution
Inconvenient if you try to get the most out of the hardware.
