Hello, I recently increased the maximum size of kernel message buffers that are cached in commit 73314404. This greatly improved the overall system performance.
This is a rework of said cache mechanism. It reduces the number of cache misses even further, but its impact on performance is unclear to me. Please test this ;) Otoh I believe this is the right thing to do even if it doesn't improve the performance, as the current solution might be worse in a multi-cpu setting, as the `ipc_kmsg_cache' would bounce back and forth between per-cpu caches. Also, it's cleaner :) Thanks, Justus
