clipka wrote:
> - The crackle cache is global to all threads IIUC, so heavy crackle use may
> cause stalls as threads compete for access

At the moment it's per-thread. Making it global to all threads is something I
have stated I want to do if it's possible without too much performance impact on
updates, since getting good results from it requires a fair chunk of RAM
per-thread - thus for high thread counts will chew a lot of main memory (as well
as reduce CPU cache effectiveness since the data is basically duplicated).

-- Chris

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