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449. By Vadim Tkachenko on 2013-02-17

Added cmake routines to build with jemalloc:
  cmake ... -DWITH_JEMALLOC=<path/to/jemalloc/basedir>

Merged r3831(lp:mysqlatfacebook/51)
  mysql>show memory status\G

Added support to enable/disable jemalloc profile at runtime:
  mysql>set jemalloc_prof_active=<ON|OFF>;

Added support to dump jemalloc profile to the file at runtime:
  mysql>set jemalloc_prof_dump=<file>;

448. By Alexey Kopytov on 2013-02-16

Use malloc directly for trx_t structures.

447. By Alexey Kopytov on 2013-02-16

Merge lp:~akopytov/percona-server/bug1125259

446. By Alexey Kopytov on 2013-02-15

Bug #1125248: Suboptimal srv_pass_corrupt_table checks

The problem:

srv_pass_corrupt_table was checked in many places in the code,
sometimes on critical paths. In most cases the check looked like this:

 block = btr_block_get(space, zip_size, root_page_no, RW_X_LATCH,
         index, mtr);

 if (srv_pass_corrupt_table && !block) {
  return(0);
 }
 ut_a(block);

For the common (i.e. non-corrupted) case:

- it is more efficient to first check for the 'block' value, since it
  is already in a register, and then the value of
  srv_pass_corrupt_table does not have to be loaded no branch

- many branch mispredictions visible in profiles due to missing
  compiler annotations

- if srv_pass_corrupt_table is enabled, but block is not zero, it's
  value is checked twice.

Fixed by addressing all of the above problems in all
srv_pass_corrupt_table check sites.

445. By <email address hidden> on 2013-02-14

Merge lp:~sergei.glushchenko/percona-server/55-tp

444. By <email address hidden> on 2013-02-14

Empty merge from Percona Server 5.1

443. By <email address hidden> on 2013-02-13

Empty merge from Percona Server 5.1

442. By <email address hidden> on 2013-02-13

Empty merge from Percona Server 5.1

441. By <email address hidden> on 2013-02-13

Merge lp:~hrvojem/percona-server/bug1092189-5.5

440. By <email address hidden> on 2013-02-13

Merge lp:~laurynas-biveinis/percona-server/BT-16274-bug1105726-5.5