netstat -antp grep EST wc -l 122483 perf top -a 21 19 kernel _raw_spin

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# netstat -antp | grep EST | wc -l
122483
================================================================================================
# perf top -a
...
21.19% [kernel] [k] _raw_spin_unlock_irqrestore
9.34% tcpkali [.] connection_flush_stats
5.92% [kernel] [k] __nf_conntrack_find_get
5.24% [kernel] [k] finish_task_switch
2.29% tcpkali [.] epoll_poll
1.99% [kernel] [k] fget_light
1.75% [kernel] [k] __do_softirq
1.57% [kernel] [k] __inet_lookup_established
1.49% [kernel] [k] do_csum
1.41% [kernel] [k] vmxnet3_xmit_frame
1.34% [kernel] [k] sock_poll
1.32% [kernel] [k] tick_nohz_idle_enter
1.29% [kernel] [k] copy_user_generic_unrolled
1.26% [kernel] [k] tcp_recvmsg
1.22% [kernel] [k] ipt_do_table
1.12% [kernel] [k] sock_def_readable
1.07% tcpkali [.] connection_cb
0.97% [kernel] [k] ep_send_events_proc
...
================================================================================================
# atop
...
PRC | sys 3.04s | user 0.96s | | | #proc 250 | #trun 7 | #tslpi 352 | #tslpu 0 | #zombie 0 | clones 0 | | | #exit 0 |
CPU | sys 57% | user 52% | irq 102% | | idle 1393% | wait 0% | steal 0% | guest 0% | | ipc notavail | cycl unknown | curf 2.59GHz | curscal ?% |
cpu | sys 0% | user 0% | irq 100% | | idle 0% | cpu003 w 0% | steal 0% | guest 0% | | ipc notavail | cycl unknown | curf 2.59GHz | curscal ?% |
cpu | sys 8% | user 5% | irq 1% | | idle 87% | cpu014 w 0% | steal 0% | guest 0% | | ipc notavail | cycl unknown | curf 2.59GHz | curscal ?% |
cpu | sys 5% | user 6% | irq 0% | | idle 89% | cpu000 w 0% | steal 0% | guest 0% | | ipc notavail | cycl unknown | curf 2.59GHz | curscal ?% |
cpu | sys 5% | user 6% | irq 0% | | idle 89% | cpu001 w 0% | steal 0% | guest 0% | | ipc notavail | cycl unknown | curf 2.59GHz | curscal ?% |
...
15860 0.92s 1.08s 0K 12K 0K 0K root root -- - 17 S 8 101% tcpkali
24 2.00s 0.00s 0K 0K 0K 0K root root -- - 1 R 3 100% ksoftirqd/3
16445 0.01s 0.01s 0K 0K 0K 0K root root -- - 1 R 1 1% atop
1215 0.01s 0.00s 0K 0K 0K 0K root root -- - 31 S 5 1% dockerd
1210 0.00s 0.00s 0K 0K 0K 0K root root -- - 1 S 10 0% snmpd
...