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75 lines
1.8 KiB
Awk
Executable File
75 lines
1.8 KiB
Awk
Executable File
#!/usr/bin/awk -f
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#
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# stackcollapse-ljp.awk collapse lightweight java profile reports
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# into single lines stacks.
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#
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# Parses a list of multiline stacks generated by:
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#
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# https://code.google.com/p/lightweight-java-profiler
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#
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# and outputs a semicolon separated stack followed by a space and a count.
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#
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# USAGE: ./stackcollapse-ljp.pl infile > outfile
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#
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# Example input:
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#
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# 42 3 my_func_b(prog.java:455)
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# my_func_a(prog.java:123)
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# java.lang.Thread.run(Thread.java:744)
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# [...]
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#
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# Example output:
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#
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# java.lang.Thread.run;my_func_a;my_func_b 42
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#
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# The unused number is the number of frames in each stack.
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#
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# Copyright 2014 Brendan Gregg. All rights reserved.
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#
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# CDDL HEADER START
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#
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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License (the "License").
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# You may not use this file except in compliance with the License.
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#
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# You can obtain a copy of the license at docs/cddl1.txt or
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# http://opensource.org/licenses/CDDL-1.0.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at docs/cddl1.txt.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# CDDL HEADER END
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#
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# 12-Jun-2014 Brendan Gregg Created this.
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$1 == "Total" {
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# We're done. Print last stack and exit.
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print stack, count
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exit
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}
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{
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# Strip file location. Comment this out to keep.
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gsub(/\(.*\)/, "")
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}
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NF == 3 {
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# New stack begins. Print previous buffered stack.
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if (count)
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print stack, count
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# Begin a new stack.
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count = $1
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stack = $3
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}
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NF == 1 {
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# Build stack.
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stack = $1 ";" stack
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}
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