understanding output of SHOW PROFILE

Hi,

I'm trying to tune a couple of queries on a website of mine.
Now if I enable profiling, perform the query and ask SHOW PROFILE, mysql
gives me the following output:

mysql> show profile;
+--------------------+------------+
| Status | Duration |
+--------------------+------------+
| Opening tables | 0.00015700 |
| System lock | 0.00001600 |
| Table lock | 0.00000700 |
| init | 0.00000900 |
| optimizing | 0.00004000 |
| statistics | 0.00005400 |
| preparing | 0.00001100 |
| executing | 0.00001100 |
| Sending data | 0.00001100 |
| end | 0.29179100 |
| query end | 0.00001500 |
| freeing items | 0.00000500 |
| closing tables | 0.00001500 |
| logging slow query | 0.00000800 |
| cleaning up | 0.00000400 |
+--------------------+------------+
15 rows in set (0.00 sec)

My question now is: what do those fields mean? On the mysql website (nor on
any other site I could find) no information can be found.
Most of them are clear but what is 'end'? I thought it would mean sending
the data to the client but that's not it as there is also a 'sending data'
state.
Anyone?


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I've been looking for the exact same thing. It seems like there is no
documentation out there for it. I specifically need to know what
having an extremely high "init" value means.