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Update README for all recent changes
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@MarkLeith
MarkLeith committed Oct 22, 2014
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136 changes: 73 additions & 63 deletions README.md
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Expand Up @@ -897,26 +897,26 @@ When the user found is NULL, it is assumed to be a "background" thread.
```SQL
mysql> select * from user_summary_by_stages;
+------+--------------------------------+-------+-----------+-----------+
| user | event_name | total | wait_sum | wait_avg |
+------+--------------------------------+-------+-----------+-----------+
| root | stage/sql/Opening tables | 889 | 1.97 ms | 2.22 us |
| root | stage/sql/Creating sort index | 4 | 1.79 ms | 446.30 us |
| root | stage/sql/init | 10 | 312.27 us | 31.23 us |
| root | stage/sql/checking permissions | 10 | 300.62 us | 30.06 us |
| root | stage/sql/freeing items | 5 | 85.89 us | 17.18 us |
| root | stage/sql/statistics | 5 | 79.15 us | 15.83 us |
| root | stage/sql/preparing | 5 | 69.12 us | 13.82 us |
| root | stage/sql/optimizing | 5 | 53.11 us | 10.62 us |
| root | stage/sql/Sending data | 5 | 44.66 us | 8.93 us |
| root | stage/sql/closing tables | 5 | 37.54 us | 7.51 us |
| root | stage/sql/System lock | 5 | 34.28 us | 6.86 us |
| root | stage/sql/query end | 5 | 24.37 us | 4.87 us |
| root | stage/sql/end | 5 | 8.60 us | 1.72 us |
| root | stage/sql/Sorting result | 5 | 8.33 us | 1.67 us |
| root | stage/sql/executing | 5 | 5.37 us | 1.07 us |
| root | stage/sql/cleaning up | 5 | 4.60 us | 919.00 ns |
+------+--------------------------------+-------+-----------+-----------+
+------+--------------------------------+-------+---------------+-------------+
| user | event_name | total | total_latency | avg_latency |
+------+--------------------------------+-------+---------------+-------------+
| root | stage/sql/Opening tables | 889 | 1.97 ms | 2.22 us |
| root | stage/sql/Creating sort index | 4 | 1.79 ms | 446.30 us |
| root | stage/sql/init | 10 | 312.27 us | 31.23 us |
| root | stage/sql/checking permissions | 10 | 300.62 us | 30.06 us |
| root | stage/sql/freeing items | 5 | 85.89 us | 17.18 us |
| root | stage/sql/statistics | 5 | 79.15 us | 15.83 us |
| root | stage/sql/preparing | 5 | 69.12 us | 13.82 us |
| root | stage/sql/optimizing | 5 | 53.11 us | 10.62 us |
| root | stage/sql/Sending data | 5 | 44.66 us | 8.93 us |
| root | stage/sql/closing tables | 5 | 37.54 us | 7.51 us |
| root | stage/sql/System lock | 5 | 34.28 us | 6.86 us |
| root | stage/sql/query end | 5 | 24.37 us | 4.87 us |
| root | stage/sql/end | 5 | 8.60 us | 1.72 us |
| root | stage/sql/Sorting result | 5 | 8.33 us | 1.67 us |
| root | stage/sql/executing | 5 | 5.37 us | 1.07 us |
| root | stage/sql/cleaning up | 5 | 4.60 us | 919.00 ns |
+------+--------------------------------+-------+---------------+-------------+
```
#### user_summary_by_statement_latency / x$user_summary_by_statement_latency
Expand Down Expand Up @@ -979,6 +979,8 @@ mysql> select * from user_summary_by_statement_type;
Summarizes statement activity, file IO and connections by host.
When the host found is NULL, it is assumed to be a "background" thread.
##### Example
```SQL
Expand All @@ -997,6 +999,8 @@ Summarizes statement activity, file IO and connections by host.
Summarizes file IO totals per host.
When the host found is NULL, it is assumed to be a "background" thread.
##### Example
```SQL
Expand All @@ -1015,31 +1019,33 @@ Summarizes file IO totals per host.
Summarizes file IO by event type per host.
When the host found is NULL, it is assumed to be a "background" thread.
##### Example
```SQL
mysql> select * from host_summary_by_file_io_type;
+------------+--------------------------------------+-------+-----------+-------------+
| host | event_name | total | latency | max_latency |
+------------+--------------------------------------+-------+-----------+-------------+
| hal1 | wait/io/file/sql/FRM | 871 | 168.15 ms | 18.48 ms |
| hal1 | wait/io/file/innodb/innodb_data_file | 173 | 129.56 ms | 34.09 ms |
| hal1 | wait/io/file/innodb/innodb_log_file | 20 | 77.53 ms | 60.66 ms |
| hal1 | wait/io/file/myisam/dfile | 40 | 6.54 ms | 4.58 ms |
| hal1 | wait/io/file/mysys/charset | 3 | 4.79 ms | 4.71 ms |
| hal1 | wait/io/file/myisam/kfile | 67 | 4.38 ms | 300.04 us |
| hal1 | wait/io/file/sql/ERRMSG | 5 | 2.72 ms | 1.69 ms |
| hal1 | wait/io/file/sql/pid | 3 | 266.30 us | 185.47 us |
| hal1 | wait/io/file/sql/casetest | 5 | 246.81 us | 150.19 us |
| hal1 | wait/io/file/sql/global_ddl_log | 2 | 21.24 us | 18.59 us |
| hal2 | wait/io/file/sql/file_parser | 1422 | 4.80 s | 135.14 ms |
| hal2 | wait/io/file/sql/FRM | 865 | 85.82 ms | 9.81 ms |
| hal2 | wait/io/file/myisam/kfile | 1073 | 37.14 ms | 15.79 ms |
| hal2 | wait/io/file/myisam/dfile | 2991 | 25.53 ms | 5.25 ms |
| hal2 | wait/io/file/sql/dbopt | 20 | 1.07 ms | 153.07 us |
| hal2 | wait/io/file/sql/misc | 4 | 59.71 us | 33.75 us |
| hal2 | wait/io/file/archive/data | 1 | 13.91 us | 13.91 us |
+------------+--------------------------------------+-------+-----------+-------------+
+------------+--------------------------------------+-------+---------------+-------------+
| host | event_name | total | total_latency | max_latency |
+------------+--------------------------------------+-------+---------------+-------------+
| hal1 | wait/io/file/sql/FRM | 871 | 168.15 ms | 18.48 ms |
| hal1 | wait/io/file/innodb/innodb_data_file | 173 | 129.56 ms | 34.09 ms |
| hal1 | wait/io/file/innodb/innodb_log_file | 20 | 77.53 ms | 60.66 ms |
| hal1 | wait/io/file/myisam/dfile | 40 | 6.54 ms | 4.58 ms |
| hal1 | wait/io/file/mysys/charset | 3 | 4.79 ms | 4.71 ms |
| hal1 | wait/io/file/myisam/kfile | 67 | 4.38 ms | 300.04 us |
| hal1 | wait/io/file/sql/ERRMSG | 5 | 2.72 ms | 1.69 ms |
| hal1 | wait/io/file/sql/pid | 3 | 266.30 us | 185.47 us |
| hal1 | wait/io/file/sql/casetest | 5 | 246.81 us | 150.19 us |
| hal1 | wait/io/file/sql/global_ddl_log | 2 | 21.24 us | 18.59 us |
| hal2 | wait/io/file/sql/file_parser | 1422 | 4.80 s | 135.14 ms |
| hal2 | wait/io/file/sql/FRM | 865 | 85.82 ms | 9.81 ms |
| hal2 | wait/io/file/myisam/kfile | 1073 | 37.14 ms | 15.79 ms |
| hal2 | wait/io/file/myisam/dfile | 2991 | 25.53 ms | 5.25 ms |
| hal2 | wait/io/file/sql/dbopt | 20 | 1.07 ms | 153.07 us |
| hal2 | wait/io/file/sql/misc | 4 | 59.71 us | 33.75 us |
| hal2 | wait/io/file/archive/data | 1 | 13.91 us | 13.91 us |
+------------+--------------------------------------+-------+---------------+-------------+
```
#### host_summary_by_stages / x$host_summary_by_stages
Expand All @@ -1048,30 +1054,32 @@ Summarizes file IO by event type per host.
Summarizes stages by host, ordered by host and total latency per stage.
When the host found is NULL, it is assumed to be a "background" thread.
##### Example
```SQL
mysql> select * from host_summary_by_stages;
+------+--------------------------------+-------+-----------+-----------+
| host | event_name | total | wait_sum | wait_avg |
+------+--------------------------------+-------+-----------+-----------+
| hal | stage/sql/Opening tables | 889 | 1.97 ms | 2.22 us |
| hal | stage/sql/Creating sort index | 4 | 1.79 ms | 446.30 us |
| hal | stage/sql/init | 10 | 312.27 us | 31.23 us |
| hal | stage/sql/checking permissions | 10 | 300.62 us | 30.06 us |
| hal | stage/sql/freeing items | 5 | 85.89 us | 17.18 us |
| hal | stage/sql/statistics | 5 | 79.15 us | 15.83 us |
| hal | stage/sql/preparing | 5 | 69.12 us | 13.82 us |
| hal | stage/sql/optimizing | 5 | 53.11 us | 10.62 us |
| hal | stage/sql/Sending data | 5 | 44.66 us | 8.93 us |
| hal | stage/sql/closing tables | 5 | 37.54 us | 7.51 us |
| hal | stage/sql/System lock | 5 | 34.28 us | 6.86 us |
| hal | stage/sql/query end | 5 | 24.37 us | 4.87 us |
| hal | stage/sql/end | 5 | 8.60 us | 1.72 us |
| hal | stage/sql/Sorting result | 5 | 8.33 us | 1.67 us |
| hal | stage/sql/executing | 5 | 5.37 us | 1.07 us |
| hal | stage/sql/cleaning up | 5 | 4.60 us | 919.00 ns |
+------+--------------------------------+-------+-----------+-----------+
+------+--------------------------------+-------+---------------+-------------+
| host | event_name | total | total_latency | avg_latency |
+------+--------------------------------+-------+---------------+-------------+
| hal | stage/sql/Opening tables | 889 | 1.97 ms | 2.22 us |
| hal | stage/sql/Creating sort index | 4 | 1.79 ms | 446.30 us |
| hal | stage/sql/init | 10 | 312.27 us | 31.23 us |
| hal | stage/sql/checking permissions | 10 | 300.62 us | 30.06 us |
| hal | stage/sql/freeing items | 5 | 85.89 us | 17.18 us |
| hal | stage/sql/statistics | 5 | 79.15 us | 15.83 us |
| hal | stage/sql/preparing | 5 | 69.12 us | 13.82 us |
| hal | stage/sql/optimizing | 5 | 53.11 us | 10.62 us |
| hal | stage/sql/Sending data | 5 | 44.66 us | 8.93 us |
| hal | stage/sql/closing tables | 5 | 37.54 us | 7.51 us |
| hal | stage/sql/System lock | 5 | 34.28 us | 6.86 us |
| hal | stage/sql/query end | 5 | 24.37 us | 4.87 us |
| hal | stage/sql/end | 5 | 8.60 us | 1.72 us |
| hal | stage/sql/Sorting result | 5 | 8.33 us | 1.67 us |
| hal | stage/sql/executing | 5 | 5.37 us | 1.07 us |
| hal | stage/sql/cleaning up | 5 | 4.60 us | 919.00 ns |
+------+--------------------------------+-------+---------------+-------------+
```
#### host_summary_by_statement_latency / x$host_summary_by_statement_latency
Expand All @@ -1080,6 +1088,8 @@ Summarizes stages by host, ordered by host and total latency per stage.
Summarizes overall statement statistics by host.
When the host found is NULL, it is assumed to be a "background" thread.
##### Example
```SQL
Expand All @@ -1097,6 +1107,8 @@ mysql> select * from host_summary_by_statement_latency;
Summarizes the types of statements executed by each host.
When the host found is NULL, it is assumed to be a "background" thread.
##### Example
```SQL
Expand All @@ -1111,10 +1123,8 @@ Summarizes the types of statements executed by each host.
| hal | create_table | 19 | 3.04 s | 431.71 ms | 0 ps | 0 | 0 | 0 | 0 |
...
+------+----------------------+--------+---------------+-------------+--------------+-----------+---------------+---------------+------------+
```
#### wait_classes_global_by_avg_latency / x$wait_classes_global_by_avg_latency
##### Description
Expand Down

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