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authorpaul <paul>2003-01-17 23:47:00 +0000
committerpaul <paul>2003-01-17 23:47:00 +0000
commite04ab74d17b4f3456bd3eeefe2043584431b4ea2 (patch)
tree154168b7aeb6b4e2fbc1fd04e5f2c96870120272 /ports
parenta895901b3c4e6a061f56be90f5fe9bc78e6e5c2f (diff)
From havanna_moon@gmx.net Fri Jan 17 23:37:49 2003
Date: Sat, 11 Jan 2003 23:26:28 +0100 (CET) From: Yon Uriarte <havanna_moon@gmx.net> To: "the list(tm) Zebra" <zebra@zebra.org> Subject: [zebra 17217] [PATCH] show thread CPU Hi, a little patch from the 'stupid preprocessor tricks' collection to record thread statistics. Usage: "show thread cpu [r][w][t][e][x]" Output Fields: self explaining I hope. Type is one of RWTEX for: Read, Write (fd threads), Timer, Event, Execute. Overhead vs. vanilla zebra: almost nothing. Vanilla CVS zebra already collects thread run times. Caveats: Under linux getrusage has a granularity of 10ms, which is almost useless in this case. Run ./configure, edit config.h and comment out "#define HAVE_RUSAGE", this way it will use getimeofday which has a much better granularity. IMHO this is better, as cooperative threads are effectively running during all that wall time (dont care if CPU utilization was 3% or 99% during the time the thread was running (an effective rusage combined with getimeofday could give that info)). Maybe someone can give tips for other platforms on API granularity. TODO: change some of the calls to thread_add_$KIND to funcname_thread_add_$KIND with a meaningfull funcname, so users will get a better idea of what's going on. F.ex. (AFAIK): ospf_spf_calculate_timer -> "Routes Step 1, areas SPF" ospf_ase_calculate_timer -> "Routes Step 2, externals" Could this be added to the unofficial patch collection? Could someone with BGP keepalive problems run their bgpd with this patch and post the results? TIA, HTH, HAND, regards yon Example output: -------------------------------- ospfd# show thread cpu Runtime(ms) Invoked Avg uSecs Max uSecs Type Thread 14.829 31 478 585 T ospf_ase_calculate_timer 82.132 9838 8 291 EX ospf_nsm_event 0.029 1 29 29 E ospf_default_originate_timer 0.254 9 28 34 T ospf_db_desc_timer 0.026 7 3 11 T ospf_wait_timer 669.015 523 1279 490696 R vty_read 4.415 45 98 173 TE ospf_network_lsa_refresh_timer 15.026 31 484 588 T ospf_spf_calculate_timer 29.478 1593 18 122 E ospf_ls_upd_send_queue_event 0.173 1 173 173 T vty_timeout 4.173 242 17 58 E ospf_ls_ack_send_event 637.767 121223 5 55 T ospf_ls_ack_timer 39.373 244 161 2691 R zclient_read 12.169 98 124 726 EX ospf_ism_event 0.226 2 113 125 R vty_accept 537.776 14256 37 3813 W ospf_write 4.967 41 121 250 T ospf_router_lsa_timer 0.672 1 672 672 E zclient_connect 7.901 1658 4 26 T ospf_ls_req_timer 0.459 2 229 266 E ospf_external_lsa_originate_timer 3.203 60 53 305 T ospf_maxage_lsa_remover 108.341 9772 11 65 T ospf_ls_upd_timer 33.302 525 63 8628 W vty_flush 0.101 1 101 101 T ospf_router_lsa_update_timer 0.016 1 16 16 T ospf_router_id_update_timer 26.970 407 66 176 T ospf_lsa_maxage_walker 381.949 12244 31 69 T ospf_hello_timer 0.114 22 5 14 T ospf_inactivity_timer 34.290 1223 28 310 T ospf_lsa_refresh_walker 470.645 6592 71 665 R ospf_read 3119.791 180693 17 490696 RWTEX TOTAL ospfd# bgpd# sh t c TeX Runtime(ms) Invoked Avg uSecs Max uSecs Type Thread 21.504 476 45 71 T bgp_keepalive_timer 17.784 1157 15 131 T bgp_reuse_timer 29.080 193 150 249 T bgp_scan 23.606 995 23 420 E bgp_event 317.734 28572 11 69 T bgp_routeadv_timer 0.084 1 84 84 E zlookup_connect 0.526 1 526 526 E zclient_connect 1.348 13 103 147 T bgp_start_timer 19.443 142 136 420 T bgp_connect_timer 16.032 772 20 27 T bgp_import 447.141 32322 13 526 TEX TOTAL bgpd# bgpd# show thread cpu rw Runtime(ms) Invoked Avg uSecs Max uSecs Type Thread 155.043 7 22149 150659 R bgp_accept 129.638 180 720 53844 R vty_read 1.734 56 30 129 R zclient_read 0.255 2 127 148 R vty_accept 58.483 983 59 340 R bgp_read 171.495 29190 5 245 W bgp_write 13.884 181 76 2542 W vty_flush 530.532 30599 17 150659 RW TOTAL bgpd# --------------------------------
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