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/linux/tools/testing/selftests/ftrace/test.d/trigger/inter-event/
H A Dtrigger-onmax-action-hist.tc3 # description: event trigger - test inter-event histogram trigger onmax action
18 echo "Test onmax action"
21 echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmax($wakeup_lat).save(next_comm,p…
25 fail "Failed to create onmax action inter-event histogram"
H A Dtrigger-onmatch-onmax-action-hist.tc3 # description: event trigger - test inter-event histogram trigger onmatch-onmax action
19 echo "Test histogram variables,simple expression support and onmatch-onmax action"
22 …nmatch(sched.sched_wakeup).wakeup_latency($wakeup_lat,next_pid,next_comm):onmax($wakeup_lat).save(…
27 fail "Failed to create onmatch-onmax action inter-event histogram"
H A Dtrigger-synthetic-event-stack.tc15 echo 'hist:keys=prev_pid:delta=common_timestamp.usecs-$ts,s=$st:onmax($delta).trace(wake_lat,prev_p…
H A Dtrigger-synthetic-event-stack-legacy.tc16 echo 'hist:keys=prev_pid:delta=common_timestamp.usecs-$ts,s=$st:onmax($delta).trace(wake_lat,prev_p…
/linux/Documentation/trace/
H A Dboottime-trace.rst181 ftrace.[instance.INSTANCE.]event.GROUP.EVENT.hist.[N.]onmax.[M.]var = VAR
182 Set histogram 'onmax' handler variable parameter.
187 ftrace.[instance.INSTANCE.]event.GROUP.EVENT.hist.[N.]<onmax|onchange>.[M.]save = ARG1[, ARG2[...]]
188 Set histogram 'save' action parameters for 'onmax' or 'onchange' handler.
189 This option or below 'snapshot' option is mandatory if 'onmax.var' or
192 ftrace.[instance.INSTANCE.]event.GROUP.EVENT.hist.[N.]<onmax|onchange>.[M.]snapshot
193 Set histogram 'snapshot' action for 'onmax' or 'onchange' handler.
194 This option or above 'save' option is mandatory if 'onmax.var' or
/linux/tools/bootconfig/scripts/
H A Dbconf2ftrace.sh161 print_hist_actions ${1} "onmax" "var"
/linux/kernel/trace/
H A Dtrace_boot.c423 * onmax|onchange[.N] { var = <VAR>; <ACTION> [= <PARAM>] }
485 node = xbc_node_find_subkey(hnode, "onmax"); in trace_boot_compose_hist_cmd()
H A Dtrace_events_hist.c48 C(ONX_NOT_VAR, "For onmax(x) or onchange(x), x must be a variable"), \
49 C(ONX_VAR_NOT_FOUND, "Couldn't find onmax or onchange variable"), \
50 C(ONX_VAR_CREATE_FAIL, "Couldn't create onmax or onchange variable"), \
653 * tracked e.g onmax($var).
1465 (str_has_prefix(str, "onmax(")) || in parse_action()
3543 action->handler == HANDLER_ONMAX ? "onmax" : "onchange", in track_data_snapshot_print()
4887 else if ((len = str_has_prefix(str, "onmax("))) in parse_actions()
4991 seq_puts(m, ":onmax("); in print_track_data_spec()
6040 seq_puts(m, "\n action tracking variables (for onmax()/onchange()/onmatch()):\n"); in hist_actions_debug_show()
H A Dtrace.c4467 "\t onmax(var) - invoke if var exceeds current max\n"