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LINUX GDB: IDENTIFY MEMORY LEAKS
This small article describe how to track memory leaks using 'gdb' on Linux. If you are using products like 'db2' or any other product that has it's own memory management routines then you should first track possible leaks at the product level using the tools it provides. For 'db2' that would be 'db2pd' for example. This article therefore applies only to memory leaks at the 'malloc()' level, that is blocks of memory allocated using 'malloc()' but never freed. Remember that a debugger is... [More]
Tags: memory gdb leak |
What to look in CPU, Memory, I/O system resources while facing DB2 perf issue
From a simple vmstat and iostat output the area of possible bottleneck area could be observed. A wider data will be needed for deeper understanding.
Tags: memory i/o db2luw cpu performance |
50 DB2 Nuggets #18 : Tech Tip - Monitoring memory usage on AIX server
I am quite sure that most of you are using 'svmon' utility with various option to monitor the memory utilisation on AIX box. The most useful option I found is 'P'. It quickly shows you the approximate memory consumption at process level: $ svmon -G size inuse free pin virtual ... [More]
Tags: 50_db2_nuggets db2_techtip db2 svmon monitoring memory |
50 DB2 Nuggets #6 : Resource Info - Memory Limitations for DB2 Workgroup Server Restricted License for different versions
Do you know the instance memory limitations for DB2 Workgroup Server Restricted License for different DB2 versions? First of all, I would like to explain what DB2 Workgroup Server Edition (WSE) Restricted License (db2wse_o.lic) means. Its nothing but that your DB2 database product was obtained as part of another IBM® product. In this case, the license terms of the bundling product takes precedence over the usual DB2 Version Workgroup Server Edition license terms. The DB2 license command ' db2licm -l ' will display the following... [More]
Tags: 50_db2_nuggets wse db2_techtip limitations workgroup memory |
