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examples: add winbindd.stp and a shell script to generate it
Usage: Instrument all winbindd processes: # stap winbindd.stp Instrument a specific winbindd process: # stap -x PID winbindd.stp Example output: # stap winbindd.stp Collecting data, press ctrl-C to stop... ^C Winbind request service time ============================ winbindd_getpwnam_send count: 99, sum: 6229 ms (min: 2669 us, avg: 62921 us, max: 157907 us) Winbind request runtime ======================= winbindd_getpwnam_send count: 99, sum: 3 ms (min: 21 us, avg: 36 us, max: 77 us) Winbind domain-child request service time ========================================= _wbint_LookupName count: 99, sum: 1403 ms (min: 619 us, avg: 14181 us, max: 136613 us) _wbint_GetNssInfo count: 99, sum: 0 ms (min: 2 us, avg: 3 us, max: 6 us) _wbint_LookupSid count: 102, sum: 49 ms (min: 13 us, avg: 481 us, max: 6315 us) _wbint_Sids2UnixIDs count: 101, sum: 2 ms (min: 18 us, avg: 29 us, max: 49 us) _wbint_LookupSids count: 101, sum: 84 ms (min: 411 us, avg: 838 us, max: 3524 us) Winbind domain-child AD-backend service time ============================================ sid_to_name count: 56, sum: 45 ms (min: 431 us, avg: 816 us, max: 6275 us) sequence_number count: 12, sum: 1209 ms (min: 46618 us, avg: 100803 us, max: 131439 us) name_to_sid count: 99, sum: 176 ms (min: 547 us, avg: 1781 us, max: 9866 us) ... Regenerate winbindd.stp: $ examples/systemtap/generate-winbindd.stp.sh Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org> Autobuild-User(master): Ralph Böhme <slow@samba.org> Autobuild-Date(master): Wed Jul 19 16:20:56 CEST 2017 on sn-devel-144
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examples/systemtap/generate-winbindd.stp.sh
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309
examples/systemtap/generate-winbindd.stp.sh
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#!/bin/sh
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outfile="$(dirname $0)/winbindd.stp"
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child_funcs="winbindd_dual_ping
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winbindd_dual_list_trusted_domains
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winbindd_dual_init_connection
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winbindd_dual_pam_auth
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winbindd_dual_pam_auth_crap
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winbindd_dual_pam_logoff
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winbindd_dual_pam_chng_pswd_auth_crap
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winbindd_dual_pam_chauthtok
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_wbint_LookupSid
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_wbint_LookupSids
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_wbint_LookupName
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_wbint_Sids2UnixIDs
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_wbint_UnixIDs2Sids
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_wbint_AllocateUid
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_wbint_AllocateGid
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_wbint_GetNssInfo
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_wbint_LookupUserAliases
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_wbint_LookupUserGroups
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_wbint_QuerySequenceNumber
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_wbint_LookupGroupMembers
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_wbint_QueryGroupList
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_wbint_QueryUserRidList
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_wbint_DsGetDcName
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_wbint_LookupRids
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_wbint_CheckMachineAccount
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_wbint_ChangeMachineAccount
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_wbint_PingDc"
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async_funcs="wb_ping
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winbindd_lookupsid
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winbindd_lookupsids
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winbindd_lookupname
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winbindd_sids_to_xids
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winbindd_xids_to_sids
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winbindd_getpwsid
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winbindd_getpwnam
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winbindd_getpwuid
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winbindd_getsidaliases
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winbindd_getuserdomgroups
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winbindd_getgroups
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winbindd_show_sequence
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winbindd_getgrgid
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winbindd_getgrnam
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winbindd_getusersids
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winbindd_lookuprids
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winbindd_setpwent
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winbindd_getpwent
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winbindd_endpwent
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winbindd_dsgetdcname
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winbindd_getdcname
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winbindd_setgrent
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winbindd_getgrent
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winbindd_endgrent
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winbindd_list_users
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winbindd_list_groups
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winbindd_check_machine_acct
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winbindd_ping_dc
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winbindd_pam_auth
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winbindd_pam_logoff
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winbindd_pam_chauthtok
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winbindd_pam_chng_pswd_auth_crap
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winbindd_wins_byip
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winbindd_wins_byname
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winbindd_allocate_uid
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winbindd_allocate_gid
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winbindd_change_machine_acct
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winbindd_pam_auth_crap"
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backend_funcs="query_user_list
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enum_dom_groups
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enum_local_groups
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name_to_sid
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sid_to_name
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rids_to_names
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lookup_usergroups
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lookup_useraliases
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lookup_groupmem
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sequence_number
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lockout_policy
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password_policy
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trusted_domains"
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header='#!/usr/bin/stap
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#
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# Systemtap script to instrument winbindd
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#
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'"# Generated by examples/systemtap/$(basename $0) on $(date), do not edit
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#"'
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# Usage:
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#
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# Instrument all winbindd processes:
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# # stap winbindd.stp
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#
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# Instrument a specific winbindd process:
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# # stap -x PID winbindd.stp
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#
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global dc_running, dc_svctime
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global backend_running, backend_svctime
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global send_running, recv_running
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global start_time, idle_time
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global async_svctime, async_runtime
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probe begin {
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printf("Collecting data, press ctrl-C to stop... ")
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}'
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domchild_req_template='
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#
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# winbind domain child function XXX
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#
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probe process("winbindd").function("XXX") {
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dc_running[tid(), "XXX"] = gettimeofday_us()
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}
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probe process("winbindd").function("XXX").return {
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if (!([tid(), "XXX"] in dc_running))
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next
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end = gettimeofday_us()
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begin = dc_running[tid(), "XXX"]
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delete dc_running[tid(), "XXX"]
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duration = end - begin
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dc_svctime["XXX"] <<< duration
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}'
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backend_req_template='
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#
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# winbind domain child backend function XXX
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#
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probe process("winbindd").function("XXX@../source3/winbindd/winbindd_ads.c") {
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backend_running[tid(), "XXX"] = gettimeofday_us()
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}
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probe process("winbindd").function("XXX@../source3/winbindd/winbindd_ads.c").return {
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if (!([tid(), "XXX"] in backend_running))
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next
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end = gettimeofday_us()
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begin = backend_running[tid(), "XXX"]
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delete backend_running[tid(), "XXX"]
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duration = end - begin
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backend_svctime["XXX"] <<< duration
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}'
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async_req_template='
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#
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# winbind async function XXX
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#
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probe process("winbindd").function("XXX_send") {
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send_running["XXX_send"] = gettimeofday_us()
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}
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probe process("winbindd").function("XXX_send").return {
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if (!(["XXX_send"] in send_running))
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next
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end = gettimeofday_us()
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start = send_running["XXX_send"]
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delete send_running["XXX_send"]
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start_time["XXX_send", $return] = start
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idle_time["XXX_send", $return] = end
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}
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probe process("winbindd").function("XXX_recv") {
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if (!(["XXX_send", $req] in start_time))
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next
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recv_running["XXX_recv"] = gettimeofday_us()
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}
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probe process("winbindd").function("XXX_recv").return {
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if (!(["XXX_recv"] in recv_running))
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next
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recv_end = gettimeofday_us()
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recv_start = recv_running["XXX_recv"]
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delete recv_running["XXX_recv"]
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recv_runtime = recv_end - recv_start
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req = @entry($req)
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send_begin = start_time["XXX_send", req]
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delete start_time["XXX_send", req]
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svctime = recv_end - send_begin
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idle = idle_time["XXX_send", req]
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delete idle_time["XXX_send", req]
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runtime = (idle - send_begin) + recv_runtime
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async_svctime["XXX_send"] <<< svctime
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async_runtime["XXX_send"] <<< runtime
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}'
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footer='
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probe end {
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printf("\n\n")
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printf("Winbind request service time\n")
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printf("============================\n")
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foreach ([name] in async_svctime) {
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printf("%-40s count: %5d, sum: %6d ms (min: %6d us, avg: %6d us, max: %6d us)\n",
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name,
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@count(async_svctime[name]),
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@sum(async_svctime[name]) / 1000,
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@min(async_svctime[name]),
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@avg(async_svctime[name]),
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@max(async_svctime[name]))
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}
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printf("\n")
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printf("Winbind request runtime\n")
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printf("=======================\n")
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foreach ([name] in async_runtime) {
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printf("%-40s count: %5d, sum: %6d ms (min: %6d us, avg: %6d us, max: %6d us)\n",
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name,
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@count(async_runtime[name]),
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@sum(async_runtime[name]) / 1000,
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@min(async_runtime[name]),
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@avg(async_runtime[name]),
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@max(async_runtime[name]))
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}
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printf("\n")
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printf("Winbind domain-child request service time\n")
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printf("=========================================\n")
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foreach ([name] in dc_svctime) {
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printf("%-40s count: %5d, sum: %6d ms (min: %6d us, avg: %6d us, max: %6d us)\n",
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name,
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@count(dc_svctime[name]),
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@sum(dc_svctime[name]) / 1000,
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@min(dc_svctime[name]),
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@avg(dc_svctime[name]),
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@max(dc_svctime[name]))
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}
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printf("\n")
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printf("Winbind domain-child AD-backend service time\n")
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printf("============================================\n")
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foreach ([name] in backend_svctime) {
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printf("%-40s count: %5d, sum: %6d ms (min: %6d us, avg: %6d us, max: %6d us)\n",
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name,
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@count(backend_svctime[name]),
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@sum(backend_svctime[name]) / 1000,
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@min(backend_svctime[name]),
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@avg(backend_svctime[name]),
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@max(backend_svctime[name]))
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}
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printf("\n")
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printf("Winbind request service time distributions (us)\n")
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printf("===============================================\n")
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foreach ([name] in async_svctime) {
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printf("%s:\n", name);
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println(@hist_log(async_svctime[name]))
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}
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printf("\n")
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printf("Winbind request runtime distributions (us)\n")
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printf("==========================================\n")
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foreach ([name] in async_runtime) {
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printf("%s:\n", name);
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println(@hist_log(async_runtime[name]))
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}
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printf("Winbind domain-child request service time distributions (us)\n")
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printf("============================================================\n")
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foreach ([name] in dc_svctime) {
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printf("%s:\n", name);
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println(@hist_log(dc_svctime[name]))
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}
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printf("Winbind domain-child AD-backend service time distributions (us)\n")
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printf("===============================================================\n")
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foreach ([name] in backend_svctime) {
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printf("%s:\n", name);
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println(@hist_log(backend_svctime[name]))
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}
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}'
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cat <<EOF > $outfile
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$header
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EOF
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printf "$child_funcs\n" | while read func ; do
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printf "$domchild_req_template\n" | sed -e s/XXX/$func/g >> $outfile
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done
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printf "$backend_funcs\n" | while read func ; do
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printf "$backend_req_template\n" | sed -e "s|XXX|$func|g" >> $outfile
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done
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printf "$async_funcs\n" | while read func ; do
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printf "$async_req_template\n" | sed -e s/XXX/$func/g >> $outfile
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done
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cat <<EOF >>$outfile
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$footer
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EOF
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2859
examples/systemtap/winbindd.stp
Normal file
2859
examples/systemtap/winbindd.stp
Normal file
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