Hi All; My problem's solution is as below:
############################################################################## # Buffer size ############################################################################## CONFIG proxy.config.net.sock_recv_buffer_size_in INT 10485760 CONFIG proxy.config.net.sock_recv_buffer_size_out INT 10485760 CONFIG proxy.config.net.sock_send_buffer_size_in INT 10485760 CONFIG proxy.config.net.sock_send_buffer_size_out INT 10485760 Best Regards, Ergin On Thu, Oct 23, 2014 at 6:33 PM, Ergin Ozekes <ergin.oze...@gmail.com> wrote: > Hi all; > > In according to my investigation on the ats read > performance,NetHandler::mainNetEvent is the top function. On my system > lots of buffer over run is exist. In my system net input interface has 250 > Mbps traffic but on the client output only 125 Mbps is exist. Half of the > downloaded content is returning to client. > > Does anyone knows the reason of this case? > And how can I fixe it? > > This is the "perf top" output: > 4.82% libpcre.so.3.13.1 [.] match > > > 3.27% [kernel] [k] native_write_msr_safe > > > 2.09% [kernel] [k] ipt_do_table > > > 1.60% [kernel] [k] __schedule > > > 1.57% [kernel] [k] menu_select > > > 1.43% libc-2.13.so [.] 0x00000000000e92b0 > > > 1.35% [kernel] [k] find_busiest_group > > > 1.16% traffic_server [.] EThread::execute() > > > 1.12% [kernel] [k] copy_user_generic_string > > > 1.10% [kernel] [k] nf_iterate > > > 1.04% [kernel] [k] _raw_spin_lock_irqsave > > > 1.03% [kernel] [k] int_sqrt > > > *1.02% traffic_server [.] NetHandler::mainNetEvent(int, > Event*)* > > 0.96% [bnx2x] [k] bnx2x_rx_int > > > 0.93% [kernel] [k] _raw_spin_lock > > > 0.90% [kernel] [k] htable_selective_cleanup > > > 0.86% [kernel] [k] cpuidle_enter_state > > > 0.83% [kernel] [k] enqueue_task_fair > > > 0.83% [kernel] [k] tcp_packet > > > 0.76% [kernel] [k] apic_timer_interrupt > > > 0.76% [kernel] [k] timerqueue_add > > > 0.76% [kernel] [k] idle_cpu > > > 0.71% [bnx2x] [k] bnx2x_start_xmit > > > 0.67% [kernel] [k] rb_erase > > > *0.64% traffic_server [.] read_from_net(NetHandler*, > UnixNetVConnection*, EThread*) * > > > > On Thu, Oct 23, 2014 at 12:33 PM, Ergin Ozekes <ergin.oze...@gmail.com> > wrote: > >> Hi all; >> >> My current working network bandwidth is 350 Mbps. >> My netstat -st output prints out below value increasingly. >> >> 1555903887 packets collapsed in receive queue due to low socket buffer >> 1555908175 packets collapsed in receive queue due to low socket buffer >> 1555912925 packets collapsed in receive queue due to low socket buffer >> 1555920054 packets collapsed in receive queue due to low socket buffer >> 1555929162 packets collapsed in receive queue due to low socket buffer >> 1555938162 packets collapsed in receive queue due to low socket buffer >> 1555945682 packets collapsed in receive queue due to low socket buffer >> 1555951783 packets collapsed in receive queue due to low socket buffer >> 1555959318 packets collapsed in receive queue due to low socket buffer >> 1555962474 packets collapsed in receive queue due to low socket buffer >> 1555969574 packets collapsed in receive queue due to low socket buffer >> >> I've increased to socket buffer size, backlog queue size and memlock >> value was set to unlimited for ats user. How can I fix it completely? >> BTW, How can I increase read from socket(connection) performance of the >> ATS? >> >> >> Best Regards, >> Ergin Ozekes >> >> On Thu, Oct 23, 2014 at 12:16 PM, Ergin Ozekes <ergin.oze...@gmail.com> >> wrote: >> >>> Hi all; >>> >>> My current working network bandwidth is 350 Mbps. >>> My netstat -st output prints out below value increasingly. >>> >>> 1555903887 packets collapsed in receive queue due to low socket >>> buffer >>> 1555908175 packets collapsed in receive queue due to low socket >>> buffer >>> 1555912925 packets collapsed in receive queue due to low socket >>> buffer >>> 1555920054 packets collapsed in receive queue due to low socket >>> buffer >>> 1555929162 packets collapsed in receive queue due to low socket >>> buffer >>> 1555938162 packets collapsed in receive queue due to low socket >>> buffer >>> 1555945682 packets collapsed in receive queue due to low socket >>> buffer >>> 1555951783 packets collapsed in receive queue due to low socket >>> buffer >>> 1555959318 packets collapsed in receive queue due to low socket >>> buffer >>> 1555962474 packets collapsed in receive queue due to low socket >>> buffer >>> 1555969574 packets collapsed in receive queue due to low socket >>> buffer >>> >>> I've increased to socket buffer size, backlog queue size and memlock >>> value was set to unlimited for ats user. How can I fix it completely? >>> >>> Best Regards, >>> Ergin Ozekes >>> >> >> >
