git: kernel - Change fill_kinfo_lwp() and fix top

[Matthew Dillon]

commit 5deae5c64cbddbf476d650cf6d16e0f1981e10d8
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Tue Jun 18 22:59:07 2019 -0700

    kernel - Change fill_kinfo_lwp() and fix top
    
    * Change fill_kinfo_lwp(), an internal function used by kern_proc.c
      and libkvm, to aggregate lwp data instead of replace it.
    
      Note that fill_kinfo_proc() will zero the lwp sub-structure and is
      already typically called before zero or more fill_kinfo_lwp() calls,
      so the new aggregation essentially just works even though the API is
      a bit different.
    
      In addition, when getprocs is told to aggregate lwps the tid field
      will be set to -1 since it is not applicable in the aggregation case.
    
    * 'top' will now properly aggregate the threads belonging to a process
      when thread mode 'H' is not in effect.
    
    * Also allow top to display cpu percentages above 100%, since in the
      aggregation case the sum of threads can easily exceed 100% of one core.
    
    Requested-by: hsw

Summary of changes:
 lib/libkvm/kvm_proc.c     | 10 ++-----
 sys/kern/kern_kinfo.c     | 70 +++++++++++++++++++++++++++++++++++++++--------
 sys/kern/kern_proc.c      | 22 +++++++++++----
 usr.bin/top/m_dragonfly.c |  4 +--
 4 files changed, 81 insertions(+), 25 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/5deae5c64cbddbf476d650cf6d16e0f1981e10d8


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