Sourceware Bugzilla – Attachment 8668 Details for
Bug 19048
malloc: arena free list can become cyclic, increasing contention
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arena_test.pl
arena_test.pl (text/plain), 412 bytes, created by
Paulo Andrade
on 2015-10-01 21:18:45 UTC
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Description:
arena_test.pl
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Creator:
Paulo Andrade
Created:
2015-10-01 21:18:45 UTC
Size:
412 bytes
patch
obsolete
>#!/bin/env perl > >use warnings; >use FileHandle; >use IPC::Open2; > >my $pid = $ARGV[0]; > >my $gdb = open2(*RD, *WD, "/usr/bin/gdb -q -p $pid"); >while (<RD>) { > last if (m/.* in .*/); >} >print(WD "thread apply all p/x __libc_tsd_MALLOC\n"); >while (<RD>) { > last if (m/^\(gdb\)/); >} >print(WD "quit\n"); >while (<RD>) { > if (m/\$.* = (\S+)/) { > print("$1\n"); > } > last if (m/^\(gdb\)/); >} >waitpid($gdb, 0);
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