Change Details

For discussion only - Change swap reserve to be in terms of unsigned long so that it can be manipulated as an atomic - Move UMA zone fast path fields to a single cache line, lock to share cache line with infrequently accessed fields - pcpu quota handling for swap reserve and uidinfo ui_vmsize, pcpu thresholds will need further consideration - pcpu refcnts - switch ucreds to use pcpu refcnts - for purposes of POC, new processes get their own ucred to simplify handling of kill - move pmap_remove to using preemptible epoch rather than current global mutex based ad hoc EBR - back counter_u64 with domain correct pages - zero counters synchronously at alloc 4k brk calls at 48 processes 1.8M -> 106M (Linux is 103M) 128M mmap/munmap at 48p 1M -> 7M (Linux is 1.8M) -

For discussion only - Change swap reserve to be in terms of unsigned long so that it can be manipulated as an atomic - Move UMA zone fast path fields to a single cache line, lock to share cache line with infrequently accessed fields - pcpu quota handling for swap reserve and uidinfo ui_vmsize, pcpu thresholds will need further consideration - pcpu refcnts - switch ucreds to use pcpu refcnts - for purposes of POC, new processes get their own ucred to simplify handling of kill - move pmap_remove to using preemptible epoch rather than current global mutex based ad hoc EBR - back counter_u64 with domain correct pages - zero counters synchronously at alloc - don't set pcpu->pc_domain to non-zero value if NUMA is not defined 4k brk calls at 48 processes 1.8M -> 106M (Linux is 103M) 128M mmap/munmap at 48p 1M -> 7M (Linux is 1.8M)

For discussion only - Change swap reserve to be in terms of unsigned long so that it can be manipulated as an atomic - Move UMA zone fast path fields to a single cache line, lock to share cache line with infrequently accessed fields - pcpu quota handling for swap reserve and uidinfo ui_vmsize, pcpu thresholds will need further consideration - pcpu refcnts - switch ucreds to use pcpu refcnts - for purposes of POC, new processes get their own ucred to simplify handling of kill - move pmap_remove to using preemptible epoch rather than current global mutex based ad hoc EBR - back counter_u64 with domain correct pages - zero counters synchronously at alloc - don't set pcpu->pc_domain to non-zero value if NUMA is not defined 4k brk calls at 48 processes 1.8M -> 106M (Linux is 103M) 128M mmap/munmap at 48p 1M -> 7M (Linux is 1.8M) -