Greets,
Thanks to Kris Kennaway I was able to get pmc profiling working,
Here is the "top" while flooding target behind the firewall:
% cumulative self self total
time seconds seconds calls ms/call ms/call name
24.4 231689.00 231689.00 0 100.00% _mtx_lock_sleep [1]
6.5 293004.00 61315.00 0 100.00%
pf_state_compare_ext_gwy [2]
6.4 353672.00 60668.00 0 100.00% pf_src_compare [3]
3.8 389565.00 35893.00 0 100.00%
pf_state_compare_lan_ext [4]
3.5 422911.00 33346.00 0 100.00% pf_test [5]
3.2 453703.00 30792.00 0 100.00% bcopy [6]
2.9 481264.00 27561.00 0 100.00% pf_test_tcp [7]
2.1 501546.00 20282.00 0 100.00% pfsync_pack_state [8]
2.0 520685.00 19139.00 0 100.00%
pf_state_compare_id [9]
2.0 539293.00 18608.00 0 100.00% bridge_pfil [10]
1.6 554228.00 14935.00 0 100.00% uma_zfree_arg [11]
1.5 568593.00 14365.00 0 100.00% uma_zalloc_arg [12]
1.4 581556.00 12963.00 0 100.00% bzero [13]
1.2 592594.00 11038.00 0 100.00%
bus_dmamap_load_mbuf_sg [14]
1.1 603052.00 10458.00 0 100.00%
bridge_rtnode_lookup [15]
1.1 613173.50 10121.50 0 100.00% _rw_rlock [16]
1.0 622984.50 9811.00 0 100.00% rn_match [17]
1.0 632477.00 9492.50 0 100.00%
pf_state_tree_id_RB_REMOVE [18]
0.9 641356.00 8879.00 0 100.00% bridge_forward [19]
0.9 649984.00 8628.00 0 100.00% em_encap [20]
0.9 658479.00 8495.00 0 100.00% _rw_runlock [21]
So the kernel spend 24.4% waiting for _mtx_lock_sleep .. I think
something is really wrong here.
I'll make profiling with polling enabled on network interfaces.
--
Best Wishes,
Stefan Lambrev
ICQ# 24134177
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