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54 lines
1.2 KiB
D
54 lines
1.2 KiB
D
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#!/usr/sbin/dtrace -qs
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/*
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* Copyright (c) 2010 Oracle and/or its affiliates. All rights reserved.
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*
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* apitimes.d - Summarize time spent in DB API functions
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*
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* This script graphs the time spent in the main API calls, grouped by thread.
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*
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* The optional integer maxcount parameter directs the script to exit after
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* that many functions have been accumulated.
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*
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* usage: apitimes.d { -p <pid> | -c "<program> [<args]" } [maxcount]
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*/
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#pragma D option quiet
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#pragma D option defaultargs
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self unsigned long long start;
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dtrace:::BEGIN
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{
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maxcount = $1 > 0 ? $1 : -1;
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functioncount = 0;
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printf("DB API times of process %d grouped by function; ", $target);
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printf("interrupt to display summary\n");
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}
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pid$target::db*_create:entry,
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pid$target::__*_pp:entry
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{
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self->start = timestamp;
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}
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pid$target::db*_create:return,
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pid$target::__*_pp:return
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/self->start != 0/
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{
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@calltimes[tid, probefunc] = quantize(timestamp - self->start);
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self->start = 0;
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functioncount++;
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}
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pid$target::db*_create:return,
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pid$target::__*_pp:return
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/functioncount == maxcount/
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{
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exit(0);
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}
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dtrace:::END
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{
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printf("\n");
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printa("Times that thread %x spent in %s in nanoseconds %@a", @calltimes);
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}
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