Run above test on 5.6.15 but there too, no much difference in VSZ and
RSS. Even Dictionary memory allocation is also same and not noticeable
changes in massif output.
Before Test
root@Dell-XPS:~# ps aux | grep mysql
mysql 16055 11.2 2.5 599344 206804 pts/3 Sl 16:19 0:09
/usr/bin/valgrind.bin --tool=massif --massif-out-file=/tmp/massif.out
/usr/sbin/mysqld
Dictionary memory allocated 138338
After Test
root@Dell-XPS:~# ps aux | grep mysqld
mysql 16055 20.8 2.6 599344 214984 pts/3 Sl 16:19 1:10
/usr/bin/valgrind.bin --tool=massif --massif-out-file=/tmp/massif.out
/usr/sbin/mysqld
Dictionary memory allocated 138338
99.83% (139,535,953B) (heap allocation functions) malloc/new/new[],
--alloc-fns, etc.
->46.05% (64,355,920B) 0x907FA5: pfs_malloc(unsigned long, int) (in
/usr/sbin/mysqld)
| ->11.33% (15,834,304B) 0x90DE93: init_table_share(unsigned int) (in
/usr/sbin/mysqld)
| | ->11.33% (15,834,304B) 0x911792:
initialize_performance_schema(PFS_global_param*) (in /usr/sbin/mysqld)
| | ->11.33% (15,834,304B) 0x5D0CFB: mysqld_main(int, char**) (in
/usr/sbin/mysqld)
| | ->11.33% (15,834,304B) 0x6709EA3: (below main) (libc-start.c:260)
99.73% (121,100,513B) (heap allocation functions) malloc/new/new[],
--alloc-fns, etc.
->53.00% (64,355,920B) 0x907FA5: pfs_malloc(unsigned long, int) (in
/usr/sbin/mysqld)
| ->13.04% (15,834,304B) 0x90DE93: init_table_share(unsigned int) (in
/usr/sbin/mysqld)
| | ->13.04% (15,834,304B) 0x911792:
initialize_performance_schema(PFS_global_param*) (in /usr/sbin/mysqld)
| | ->13.04% (15,834,304B) 0x5D0CFB: mysqld_main(int, char**) (in
/usr/sbin/mysqld)
| | ->13.04% (15,834,304B) 0x6709EA3: (below main) (libc-start.c:260)
** Changed in: percona-server/5.6
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1124242
Title:
Memory leak with InnoDB temporary tables
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