Hi all,
I just updated Percona Server from 55 to Percona-Server-server-56-5.6.35-rel81.0.el6.x86_64.
When I run “perf top” I am seeing high CPU usage for the function “my_lfind”.
63.78% mysqld [.] my_lfind
0.97% [kernel] [k] find_busiest_group
0.89% mysqld [.] buf_calc_page_new_checksum
0.56% mysqld [.] buf_page_get_gen
0.42% mysqld [.] MYSQLparse
0.40% [kernel] [k] _spin_lock_irqsave
0.40% [kernel] [k] sidtab_context_to_sid
Has anyone else seen this?
thx
Frank