[Babel-users] 64k routes, bird, babel rfc, rtod, etc

[Dave Taht]

uthash + this lastest patchset, compiled with -pg -O2. Staging 14k
routes in 2048k chunks over about 120 sec.
12 core ubuntu 18 box netlink reports an error on every insert, but
all the routes get there, and get out...

killing it shortly after staging things is quite lovely compared to
what it was before this branch. ~5 sec of cpu time?

(has recvmmsg ever been fixed?)

I note (that as mr inliner), I also put in an inline qsort once... but
not on this run. I'll go beat this up harder.

Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total
 time   seconds   seconds    calls  ms/call  ms/call  name
 38.90      1.98     1.98    51898     0.04     0.05  netlink_read
 18.08      2.90     0.92                             kernel_route_compare
  8.64      3.34     0.44 54528432     0.00     0.00  do_filter
  8.25      3.76     0.42                             check_xroutes
  7.37      4.14     0.38 56484315     0.00     0.00  filter_route
  3.93      4.34     0.20 53788418     0.00     0.00  redistribute_filter
  3.83      4.53     0.20 112984285     0.00     0.00  martian_prefix
  3.54      4.71     0.18 55569652     0.00     0.00  xroute_compare
  2.55      4.84     0.13   165057     0.00     0.00  find_xroute_slot
  0.79      4.88     0.04   738564     0.00     0.00  output_filter
  0.69      4.92     0.04                             wait_for_fd
  0.59      4.95     0.03   738560     0.00     0.00  really_buffer_update
  0.49      4.97     0.03   141157     0.00     0.00  filter_address
  0.39      4.99     0.02   326535     0.00     0.00  find_route_slot
  0.39      5.01     0.02   233227     0.00     0.00  update_route
  0.39      5.03     0.02        1    20.00    20.00  getint
  0.20      5.04     0.01   908969     0.00     0.00  timeval_minus_msec
  0.20      5.05     0.01   746789     0.00     0.00  start_message