finding memory leaks for Solaris applications

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finding memory leaks for Solaris applications

By ydzhang on 十二月 21, 2007

using ksh, to find leaks in 'iostat' utility

LD_PRELOAD=libumem.so;UMEM_DEBUG=default;UMEM_LOGGING=transaction; 
export LD_PRELOAD UMEM_DEBUG UMEM_LOGGING

truss -fT exit -t \\!all -s \\!all /usr/bin/iostat -xYn > /dev/null
<<displays pid ##### at exit time>>>
echo "::findleaks -d" | mdb -p `pgrep iostat`;prun `pgrep iostat`

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example of fmdump -t [time]

for gettimeopt function:

bash-3.2# truss -fT exit -t \\!all -s \\!all /fmdump -t 10:20:11 > /dev/null
102205: _exit(0)
bash-3.2# echo "::findleaks -vd" |mdb -p 102205;prun 102205

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Memory Leak Testing Steps for fmdump

bash-3.2# truss -fT exit -t \\!all -s \\!all /fmdump -e -n class=\*scsi\* -n ena=b > /dev/null
 << pid #>>
bash-3.2# echo "::findleaks -vd" |mdb -p <<pid #>>;prun <<pid #>>