mirror of https://github.com/facebook/rocksdb.git
39 lines
1.0 KiB
Plaintext
39 lines
1.0 KiB
Plaintext
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#!/usr/bin/env perl
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use strict;
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open(my $ps, "-|", "ps -wwf");
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my $cols_known = 0;
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my $cmd_col = 0;
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my $pid_col = 0;
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while (<$ps>) {
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print;
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my @cols = split(/\s+/);
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if (!$cols_known && /CMD/) {
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# Parse relevant ps column headers
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for (my $i = 0; $i <= $#cols; $i++) {
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if ($cols[$i] eq "CMD") {
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$cmd_col = $i;
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}
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if ($cols[$i] eq "PID") {
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$pid_col = $i;
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}
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}
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$cols_known = 1;
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} else {
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my $pid = $cols[$pid_col];
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my $cmd = $cols[$cmd_col];
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# Match numeric PID and relative path command
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# -> The intention is only to dump stack traces for hangs in code under
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# test, which means we probably just built it and are executing by
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# relative path (e.g. ./my_test or foo/bar_test) rather then by absolute
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# path (e.g. /usr/bin/time) or PATH search (e.g. grep).
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if ($pid =~ /^[0-9]+$/ && $cmd =~ /^[^\/ ]+[\/]/) {
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print "Dumping stacks for $pid...\n";
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system("pstack $pid || gdb -batch -p $pid -ex 'thread apply all bt'");
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}
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}
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}
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close $ps;
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